A speedometer does not directly indicate whether or not acceleration is occurring in a straight-line motion.
A speedometer is a device that measures and displays the instantaneous speed of a vehicle or object. It provides information about the rate at which the object is changing its position over time. However, acceleration refers to a change in velocity, which includes changes in speed and changes in direction. Since a speedometer only measures the magnitude of the speed, it cannot directly indicate whether or not acceleration is occurring.
To determine whether or not acceleration is occurring in a straight-line motion, one would need to analyze the changes in speed over time or examine other factors such as the object's position and time elapsed. The speedometer alone cannot provide this information.
You can learn more about speedometer at
https://brainly.com/question/27340138
#SPJ11
One side of ______ has a larger amount of craters than the other side does. Smooth plains on the planet indicate that molten material in the past filled in low areas. Also, wrinkle ridges across the planet suggest that the planet cooled down and shrunk, making the surface lift and squeeze.
The planet in question is likely the moon. The Moon's surface has two distinctly different sides - the near side and the far side. The near side has fewer craters and more smooth plains, whereas the far side is heavily cratered and has fewer plains.
This difference is due to a phenomenon called tidal locking, where the Moon's rotation is synchronized with its orbit around Earth, resulting in one side always facing Earth. The smooth plains on the Moon were formed by volcanic activity in the past, where lava flowed and filled low-lying areas. The wrinkle ridges, on the other hand, were formed due to the Moon's cooling and shrinking. As the Moon cooled, its surface contracted and caused the ridges to form.
The Moon's unique features have provided scientists with valuable information about the history and geology of the Moon, as well as the processes that shape planetary surface. By studying the Moon, we can gain a better understanding of how planets and other celestial bodies evolve over time.
learn more about planetary surface Refer: https://brainly.com/question/4276004
#SPJ11
A capacitor with a charge of 5.6 C has its terminals shorted by a metal wire so that the charge flows off within 0.7 s. What is the average current flowing during that time in Ampere (A)? Enter a number with two digits behind the decimal point.
To find the average current flowing through the capacitor, we need to use the formula:
I = Q/t
Where I is the average current, Q is the charge of the capacitor, and t is the time it takes for the charge to flow off. Substituting the given values, we get:
I = 5.6 C / 0.7 s
I = 8 A
Therefore, the average current flowing through the capacitor during the 0.7 seconds is 8 amperes. It's important to note that the capacitor has now been discharged and has no remaining charge. The concept of capacitance and charging and discharging of capacitors is important in electronic circuits, where capacitors are used to store and release electrical energy. The rate at which the capacitor discharges depends on the capacitance value and the resistance in the circuit. In practical applications, the discharge time can be controlled by using a resistor in parallel with the capacitor. This way, the capacitor can be discharged more slowly, and the average current can be reduced.
Learn more about capacitor here:
https://brainly.com/question/17176550
#SPJ11
The environment of the retinal binding site is most likely:
A.hydrophilic.
B.positively charged.
C.negatively charged.
D.hydrophobic.
The environment of the retinal binding site is most likely D. hydrophobic.
Retinal is a small hydrophobic molecule that is covalently bound to a lysine residue in rhodopsin and other visual pigments. The binding site for retinal is located within the transmembrane domain of the protein, which is embedded in the hydrophobic lipid bilayer of the cell membrane.
The hydrophobic environment of the retinal binding site is essential for maintaining the stability and function of the protein. It allows the retinal molecule to be securely anchored within the protein, while also protecting it from the surrounding aqueous environment.
Furthermore, the hydrophobic environment of the retinal binding site is thought to play a role in the conformational changes that occur in the protein upon absorption of light. These changes are believed to be initiated by the isomerization of the retinal molecule, which induces structural changes in the protein that ultimately lead to the activation of a signaling pathway in the visual system.
Learn more about hydrophobic: https://brainly.com/question/16003692
#SPJ11
total magnification is the product of two values: power of eyepiece and power of
Total magnification is calculated by multiplying two values: the power of the eyepiece and the power of the objective.
This is known as the product method of calculating magnification.
The power of the eyepiece refers to the magnification that the eyepiece lens provides, while the power of the objective refers to the magnification provided by the objective lens. Together, these two values determine the total magnification of the microscope.
A microscope's total magnification is a combination of the eyepieces and the objective lens. For example, a biological microscope with 10x eyepieces and a 40x objective has 400x magnification.
Learn more about Magnification https://brainly.com/question/29314559
#SPJ11
A sample of oxygen gas has a volume of 1.72 L at 27°C and 800.0 torr. How many oxygen molecules does it contain?
A) 4.43x10^22
B) 3.36x10^25
C) 4.92x10^23
D) 8.19x10^24
E) none of these
The closest answer choice is A) 4.43 x 10^22 oxygen gas molecules so that is the answer.
To solve this problem, we can use the Ideal Gas Law, which states that PV=nRT, where P is pressure, V is volume, n is the number of moles of gas, R is the gas constant, and T is temperature.
First, we need to convert the temperature to Kelvin by adding 273.15 to get 300.15 K. Then, we can solve for n using the formula:
n = (PV)/(RT)
n = (800.0 torr * 1.72 L) / (0.08206 L*atm/mol*K * 300.15 K)
n = 0.0746 mol
Next, we can use Avogadro's number, which states that there are 6.022 x 10^23 molecules in one mole, to find the number of molecules in the sample:
number of molecules = n * Avogadro's number
number of molecules = 0.0746 mol * 6.022 x 10^23 molecules/mol
number of molecules = 4.49 x 10^22
To know more about oxygen gas refer https://brainly.com/question/28103699
#SPJ11
Answer :A
Explanation:
First convert 800torr to atm by ( 800/760) = 1.05
then apply the gas law PV=nRT
(1.052*1.72) / ((27+273)*(0.082) =0.073
then multiply by Avogadro no.
0.073 * 6.022*10^23 =4.43*10^22
4.21 A block has an acceleration a when pulled by a string. If two identical blocks are glued together and pulled with twice the original force, their acceleration will be
A (1/4 a)
b (1/2)a
C a
d 2a
e 4a
If two identical blocks are glued together and pulled with twice the original force, their acceleration will be a.
Newton's second rule of motion states that an object's acceleration is inversely proportional to its mass and directly proportional to the net force exerted on it.
[tex]a = F_{net}/m[/tex]
where a is the acceleration, [tex]F_{net[/tex] is the net force, and m is the mass of the object.
If the original block has a mass of m and is pulled with a force of F, its acceleration is:
a = F/m
When two identical blocks are glued together, their total mass becomes 2m. If they are pulled with a force of 2F, their acceleration is:
a' = (2F)/(2m) = F/m
Therefore, the acceleration of the two glued blocks is the same as the original acceleration of the single block, which is:
a' = a
Hence, the correct answer is:
C) a
Learn more about acceleration here:
https://brainly.com/question/12550364
#SPJ4
Electric current I enters a node with three resistors connected in parallel. Which one of the following is correct? (a) I=I and I2=I3=0 (b) I2>I1 and I2>I3, (c) V1I2>I3>0
Electric current I enters a node with three resistors connected in parallel (b) I2>I1 and I2>I3.
In a parallel circuit, the voltage across each resistor is the same, but the current through each resistor can be different. So, in this case, the current I will split into three branches as it enters the node, with some current flowing through each resistor. Therefore, option (a) I=I and I2=I3=0 is incorrect.
Since the three resistors are in parallel, the voltage across each resistor is the same. Therefore, the resistor with the lowest resistance will have the highest current flowing through it, while the resistor with the highest resistance will have the lowest current flowing through it. Thus, option (b) I2>I1 and I2>I3 is correct.
Option (c) V1I2>I3>0 is not correct as it involves the voltage V1, which is not specified in the question.
To know more about the electric current refer here :
https://brainly.com/question/2264542#
#SPJ11
Two particles each experience a force F. The particles have different masses such that particle 1 have less mass than particle 2 m1 < m2. Compare the magnitude of the accelerations, a1 and a2, of the two particles
a. a1=a2 b. a1a2
The particle with less mass (particle 1) will experience a greater acceleration than the particle with more mass (particle 2) when they are subjected to the same force.
According to Newton's second law of motion, the force acting on an object is equal to its mass times its acceleration (F = ma). In this scenario, both particles experience the same force F but have different masses (m1 < m2). We are asked to compare the magnitudes of their accelerations, a1 and a2.
For particle 1, we can express the force and acceleration as F = m1a1. Similarly, for particle 2, we have F = m2a2. To compare the accelerations, we can rearrange the equations and solve for a1 and a2.
a1 = F/m1 and a2 = F/m2
Since m1 < m2, dividing the same force F by a smaller mass (m1) will result in a larger acceleration (a1) compared to dividing it by a larger mass (m2). Therefore, a1 > a2.
In conclusion, the particle with less mass (particle 1) will experience a greater acceleration than the particle with more mass (particle 2) when they are subjected to the same force. This relationship can be represented as a1 > a2, which does not correspond to any of the given options (a. a1=a2 or b. a1a2).
Learn more about acceleration :
https://brainly.com/question/3046924
#SPJ11
True or False: While discharging, the terminal voltage of a battery can never be greater than the emf of the battery?
The statement "While discharging, the terminal voltage of a battery can never be greater than the emf of the battery" is True.
While discharging, the terminal voltage of a battery can never be greater than the EMF of the battery. The EMF is the maximum voltage that the battery can provide when it is not connected to any load, and it represents the theoretical maximum potential difference between the two terminals of the battery.
The terminal voltage gradually decreases as the battery supplies current to the connected load, due to factors such as internal resistance and chemical reactions within the battery. The difference between the terminal voltage and the EMF is known as the internal voltage drop.
To know more about the terminal voltage refer here :
https://brainly.com/question/11455293#
#SPJ11
When the light moves from a less dense medium to a denser medium, what happens to the angle of refraction?
When light moves from a less dense medium to a denser medium, the angle of refraction decreases.
This occurs due to the change in speed of light as it passes from one medium to another.
Light travels slower in denser mediums, causing it to bend towards the normal (an imaginary line perpendicular to the surface of the medium).
This bending results in a smaller angle of refraction compared to the angle of incidence (the angle at which light enters the medium).
Summary: As light transitions from a less dense medium to a denser medium, it slows down and bends towards the normal, resulting in a decreased angle of refraction.
Learn more about refraction click here:
https://brainly.com/question/27932095
#SPJ11
If the density is constant, the microscopic mass balance reduce to laplace transform x v = 0
T/F
The given statement "If the density is constant, the microscopic mass balance reduce to laplace transform x v = 0" is TRUE because when the density is constant, it means that the mass per unit volume of the substance is the same throughout the system.
Understanding Laplace transformIn this case, the microscopic mass balance equation reduces to the Laplace transform of the velocity (v) multiplied by the position (x) equals zero.
This is because there is no net accumulation or depletion of mass in any part of the system since the density remains constant.
The Laplace transform is a mathematical tool used to simplify and solve differential equations, and in this case, it helps to derive the relationship between mass and velocity in a system with a constant density.
Learn more about Laplace transform at
https://brainly.com/question/30402015
#SPJ11
Why does a tent allow water to pass through when touched with a finger
A tent is often composed of waterproof or water-resistant fabric, although it can still let water in when touched with a finger or in heavy rain. This is due to the fact that the cloth is not totally impermeable and has microscopic pores or holes that enable water to pass through. These pores or holes are tiny enough to prevent significant amounts of water from entering the tent, but wide enough to enable air to flow within and keep the tent from getting too stuffy.
The quantity of water that goes through the fabric is determined by various elements, including the size and number of pores, the pressure of the water, and the length of time the fabric is exposed to water. The volume of water that flows through can be large when the pressure is strong, such as during heavy rain or wind, or when the fabric is old or torn.
To increase a tent's water resistance, use a high-quality waterproof fabric, carefully seam seal the tent, and apply a waterproof coating to the fabric. Tents that are properly maintained and cared for will give superior water resistance and last longer.
To know more about tent :
https://brainly.com/question/30213588
#SPJ4.
hydrops fetalis is associated w/ what findings?
The prognosis of hydrops fetalis depends on the underlying cause, gestational age, and severity of the condition
Figure out hydrops fetalis?Hydrops fetalis is a serious fetal condition that is characterized by abnormal fluid accumulation in two or more fetal compartments, including the subcutaneous tissue, pleural space, pericardium, and/or abdominal cavity. It can be associated with various underlying causes, including fetal anemia, congenital infections, cardiac abnormalities, metabolic disorders, and others.
In addition to fluid accumulation, hydrops fetalis may also present with other findings, including:
Fetal growth restriction (FGR) or intrauterine growth restriction (IUGR)Fetal edema or swelling, particularly in the scalp and faceCardiac abnormalities, such as arrhythmias or structural defectsAnemia, which may be due to conditions such as hemolytic disease of the fetus and newborn (HDFN) or alpha-thalassemiaThe prognosis of hydrops fetalis depends on the underlying cause, gestational age, and severity of the condition. Prompt diagnosis and management are essential to optimize fetal and neonatal outcomes.
Learn more about Hydrops fetalis
brainly.com/question/12977997
#SPJ11
STT before chapter 12
A blender does 5000 J of work on the food in its bowl. During the time the blender runs, 2000J of heat is transferred from the warm food to the cooler environment. What is the change in the thermal energy of the food?
a +2000J
b+3000 J
c + 7000 J
d -2000J
e-3000J
A blender does 5000 J of work on the food in its bowl. During the time the blender runs, 2000J of heat is transferred from the warm food to the cooler environment. then the change in the thermal energy of the food is +3000J. Hence option B is correct.
The first law of thermodynamics states that the change in internal energy of a system equals the heat contributed to the system minus the work done by the system. The system in this example is the food in the blender's bowl, and the blender does the work. As a result,
we have: U = Q - W
where U represents the change in internal energy, Q represents the heat contributed to the system, and W represents the work done by the system.
Given,
heat added Q = 5000 J
Work W = 2000J
Here we have taken work as positive quantity cause energy is released from the system.
Putting all the values,
U = 5000 J - 2000J = 3000 J
Hence option B is correct.
To know more about Energy :
https://brainly.com/question/1932868
#SPJ4.
When dry, a 1 m1 m long silk fiber would extend, when fully stretched, to a length of 1.20 m1.20 m When wet, what would its fully stretched length be, in metersmeters, if its initial length was 1.35 mm
When wet, a 1.35 mm silk fiber would extend to a length greater than 1.62 mm.
Silk fibers have a unique property of extending when wet due to the increased elasticity caused by the presence of water molecules.
When dry, the 1 m long silk fiber can be stretched to a length of 1.20 m.
If the initial length of the fiber is 1.35 mm and it is wet, it can be stretched to a length greater than 1.62 mm.
This increase in length is due to the added elasticity provided by the water molecules, allowing the silk fiber to stretch further than it would when dry.
The exact length increase would depend on the specific properties of the silk fiber and the amount of water present.
For more such questions on fiber, click on:
https://brainly.com/question/30614297
#SPJ11
A cosmic ray electron (m = 9.110-31 kg) moves at 7.16106 m/s perpendicular to the Earth's magnetic field at an altitude where field strength is 1.13*10-5 T. What is the radius r (in m) of the circular path the electron follows?
The radius of the circular path the electron follows is approximately 3.175*10^-3 meters.
The radius r of the circular path the electron follows can be found using the equation for the Lorentz force, which is F = q(v x B), where F is the force on the electron, q is the charge on the electron, v is the velocity of the electron, and B is the magnetic field.
In this case, the electron has a charge of -1.602*10^-19 C (since it's a negatively charged particle), and the magnetic field strength is 1.13*10^-5 T. The velocity of the electron is 7.161*10^6 m/s.
Using these values and the equation F = q(v x B), we can solve for the force on the electron:
F = (-1.602*10^-19 C)(7.161*10^6 m/s)(1.13*10^-5 T)
F = -1.161*10^-13 N
The direction of the force is perpendicular to both the velocity of the electron and the magntic field, so it points towards the center of the circular path.
The force on the electron is also given by F = ma, where m is the mass of the electron and a is its acceleration. Since the acceleration is centripetal (directed towards the center of the circle), we can use the equation for centripetal acceleration, which is a = v^2/r, where v is the velocity of the electron and r is the radius of the circle.
Setting F = ma and equating the expressions for F, we get:
ma = q(v x B)
m(v^2/r) = q(v x B)
r = mv/qB
Plugging in the values for m, v, q, and B, we get:
r = (9.11*10^-31 kg)(7.161*10^6 m/s)/(-1.602*10^-19 C)(1.13*10^-5 T)
r = -3.175*10^-3 m
Note that the negative sign indicates that the circular path is in the opposite direction of the velocity of the electron. Taking the absolute value, the radius of the circular path is:
|r| = 3.175*10^-3 m
Learn more about electron: https://brainly.com/question/1255220
#SPJ11
After sliding down a plastic slide at the park, your hair stands on end. It continues standing on end
even after you get off the slide. What does this imply?
(a) It implies that you have picked up a net charge from the slide.
(b) It implies that your hair has become polarized.
(c) It implies that your hair is covered in water and has become a better conductor.
(d) It implies that your hair has become conducting.
(e) It implies that your hair has become insulating.
After sliding down a plastic slide at the park, your hair stands on end (a) It implies that you have picked up a net charge from the slide.
When you slide down a plastic slide, your body rubs against the surface of the slide and electrons from your body can transfer to the slide. This transfer of electrons leaves you with a net charge, which can cause your hair to stand on end. This phenomenon is known as the triboelectric effect. The charge on your hair is the same as the charge on the slide, which is typically negative. This negative charge can repel each hair from one another, causing them to stand on end. The charge on your hair will eventually dissipate over time as it comes into contact with the air and other surfaces. Therefore, it is not due to hair becoming polarized, covered in water, conducting, or insulating. It is simply the transfer of electrons from your body to the slide that causes your hair to stand on end.
Learn more about charge :
https://brainly.com/question/11944606
#SPJ11
20. What is the speed of sound in air at 0 C?
a. 5170 m/s
b. 319 m/s
c. 344 m/s
d. 331 m/s
At 0 degrees Celsius, the speed of sound in air is around 331 m/s. The right answer is (d) 331 m/s.
We can use the formula for the speed of sound in air:
v = 331.3 √(T/273.15 + 1)
where v is the speed of sound in m/s and T is the air temperature in Kelvin.
At 0 C, the air temperature in Kelvin is:
T = 0 + 273.15 = 273.15 K
Substituting this value into the formula, we get:
[tex]v = 331.3 \sqrt{(273.15/273.15 + 1)}\\v = 331.3 m/s[/tex]
Therefore, the speed of sound in air at 0 C is approximately 331 m/s. So, the correct option is (d) 331 m/s.
Learn more about the speed of sound here:
https://brainly.com/question/15381147
#SPJ4
A tabletop accelerator uses lasers to accelerate electrons. The accelerator produces an electric field
of 100, 000, 000, 000 NC = 1 Ã 10^11 N/C. How much charge would I have to put on a pith ball of radius 0.5cm to produce a field of 1 Ã 10^11 N/C at its surface?
You would need to put a charge of approximately [tex]2.78 * 10^{-7} C[/tex] coulombs on the pith ball to produce an electric field of [tex]1 * 10^{11} N/C[/tex] at its surface.
A tabletop accelerator uses lasers to accelerate electrons and can produce an electric field of [tex]1 * 10^{11} N/C[/tex]. To determine how much charge is required on a pith ball of radius 0.5 cm (0.005 m) to produce the same electric field at its surface, we can use the equation for the electric field generated by a point charge:
[tex]E = k * Q / r^2[/tex]
where E is the electric field, k is Coulomb's constant ([tex]8.99 * 10^9 N m^2/C^2[/tex]), Q is the charge we need to find, and r is the radius of the pith ball (0.005 m). We can rearrange the equation to solve for Q:
[tex]Q = E * r^2 / k[/tex]
Substituting the given values:
Q = ([tex]1 * 10^{11} N/C[/tex]) x [tex](0.005 m)^2[/tex] / ([tex]8.99 * 10^9 N m^2/C^2[/tex])
Q ≈ [tex]2.78 * 10^{-7} C[/tex]
Therefore, you would need to put a charge of approximately [tex]2.78 * 10^{-7} C[/tex] coulombs on the pith ball to produce an electric field of [tex]1 * 10^{11} N/C[/tex] at its surface.
Learn more about electric field :
https://brainly.com/question/15800304
#SPJ11
The magnetic field of an electromagnetic wave in a vacuum is Bz =(4.0μT)sin((1.20×107)x−ωt), where x is in m and t is in s.What is the wave's wavelength?What is the wave's frequency?What is the wave's electric field amplitude?
The wavelength is: λ = 2π/k = 2π/(1.20×10^7 m^-1) ≈ 5.24×10^-8 m
The frequency will be: f = ω/(2π) = cλ/(2π) ≈ 5.72×10^14 Hz
The electric field amplitude is approximately 1.26×10^-2 V/m.
How to find wave's wavelength?The magnetic field of an electromagnetic wave in a vacuum is given by:
Bz = (4.0 μT) sin((1.20×10^7)x - ωt)
where Bz is the magnetic field amplitude in Tesla (T), x is the position in meters (m), t is the time in seconds (s), μ is the magnetic permeability of vacuum (4π×10^-7 T·m/A), and ω is the angular frequency in radians per second (rad/s).
We can use the general equation for an electromagnetic wave in vacuum to relate the wavelength (λ) and frequency (f) to the angular frequency:
c = λf = ω/k
where c is the speed of light in vacuum (3.00×10^8 m/s) and k is the wave vector (k = 2π/λ).
To find the wavelength, we need to first determine the wave vector from the expression for the magnetic field:
Bz = B0 sin(kx - ωt)
where B0 = 4.0 μT. Comparing this to the general form of a sinusoidal function:
y = A sin(kx - ωt)
we see that k = 1.20×10^7 m^-1.
Therefore, the wavelength is:
λ = 2π/k = 2π/(1.20×10^7 m^-1) ≈ 5.24×10^-8 m
How to find wave's frequency?To find the frequency, we use the relationship between the angular frequency and the frequency:
ω = 2πf
Substituting this into the equation for the wave vector, we get:
k = ω/c = 2πf/c
Solving for the frequency, we get:
f = ω/(2π) = cλ/(2π) ≈ 5.72×10^14 Hz
How to find wave's electric field amplitude?Finally, to find the electric field amplitude, we use the relation between the magnetic and electric fields in an electromagnetic wave:
Bz = (μ/ε)Ez
where Ez is the electric field amplitude. Solving for Ez, we get:
Ez = Bz(ε/μ) = B0(ε/μ) ≈ 1.26×10^-2 V/m
where ε is the electric permittivity of vacuum (8.85×10^-12 F/m). Therefore, the electric field amplitude is approximately 1.26×10^-2 V/m.
Learn more about electromagnetic wave in vacuum
brainly.com/question/15561073
#SPJ11
A two-resistor series circuit has an applied voltage of 100 V. The voltage across one of the resistors is 40 V. The voltage across the other resistor is _____.
Given that you have a two-resistor series circuit with an applied voltage of 100 V, we can use the principle of voltage distribution in a series circuit to determine the voltage across the second resistor.
In a series circuit, the total applied voltage is distributed across all the resistors. The voltage across each resistor is directly proportional to its resistance. In this case, we know the voltage across one resistor is 40 V.
Using the principle of voltage distribution, we can calculate the voltage across the other resistor as follows:
Total applied voltage = Voltage across resistor 1 + Voltage across resistor 2
100 V = 40 V + Voltage across resistor 2
Now, we can solve for the voltage across resistor 2:
Voltage across resistor 2 = Total applied voltage - Voltage across resistor 1
Voltage across resistor 2 = 100 V - 40 V
Voltage across resistor 2 = 60 V
So, the voltage across the other resistor in the series circuit is 60 V.
Learn more about series circuit here: brainly.com/question/11409042
#SPJ11
The peregrine falcon is the fastest bird on earth with an airspeed of 242 mi/hr. What is this in m/s? Hint: 1 mi = 1609 meters
For peregrine falcon is the fastest bird on earth The conversion factor from miles to meters is 1609. Therefore, to convert 242 miles per hour to meters per second, we need to multiply by 1609 and then divide by 3600 (the number of seconds in an hour):
Birds have a much sharper vision than humans. In fact, they enjoy the ability to see the ultraviolet rays (UV rays), which for humans is impossible without the use of equipment. The eyes of a bird accounts for about 15% of their whole head (unlike Human eyes, which are about 2% of a humans head).
242 miles/hour x 1609 meters/mile ÷ 3600 seconds/hour = 108.7 meters/second
So the peregrine falcon's airspeed of 242 mi/hr is equivalent to 108.7 m/s.
To know more about falcon birds refer https://brainly.com/question/30163707
#SPJ11
A sailboat runs before the wind with a constant speed of 3.5 m/s in a direction 35º north of west. 1.)How far west has the sailboat traveled in 27 min ? 2.) How far north has the sailboat traveled in 27 min ?
1. In 27 minutes, the sailboat has travelled approximately 4655.4 metres west.
2. In 27 minutes, the sailboat has travelled approximately 4860 metres north.
We can use trigonometry to solve this problem. Let's call the distance traveled west "x" and the distance traveled north "y".
1. To find x, we can use the cosine function. The angle between the direction the boat is traveling and due west is 35º. Therefore, the cosine of 35º gives us the fraction of the boat's speed that is directed west.
cos(35º) = x / (3.5 m/s)
Rearranging this equation to solve for x, we get:
x = cos(35º) * 3.5 m/s = 2.87 m/s
Now we can find the distance traveled west in 27 minutes (or 1620 seconds) by multiplying x by the time:
Distance traveled west = x * t = 2.87 m/s * 1620 s = 4655.4 meters west
Therefore, the sailboat has traveled approximately 4655.4 meters west in 27 minutes.
2. To find y, we can use the sine function. The angle between the direction the boat is traveling and due west is 35º, so the angle between the direction the boat is traveling and due north is 90º - 35º = 55º. Therefore, the sine of 55º gives us the fraction of the boat's speed that is directed north.
sin(55º) = y / (3.5 m/s)
Solving for y, we get:
y = sin(55º) * 3.5 m/s = 3.00 m/s
Now we can find the distance traveled north in 27 minutes (or 1620 seconds) by multiplying y by the time:
Distance traveled north = y * t = 3.00 m/s * 1620 s = 4860 meters north
Therefore, the sailboat has traveled approximately 4860 meters north in 27 minutes.
Learn more about trigonometry on:
https://brainly.com/question/13729598
#SPJ11
What happened to the brightness of the bulb as the power supply voltage was increased? Did this agree with your prediction?
According to Ohm's law, an increase in voltage results in an increase in current, which in turn causes the bulb to emit more light and increase in brightness, as observed in the experiment.
What is the relationship between voltage, current, and brightness of a bulb?Based on Ohm's law, an increase in voltage results in an increase in current, which in turn causes the bulb to emit more light, resulting in an increase in brightness. This is because the resistance of the bulb remains constant, and the power delivered to the bulb increases with the increase in voltage.
Thus, the brightness of the bulb increases proportionally with the increase in voltage, as long as the bulb does not reach its maximum power rating. This phenomenon is commonly observed in electrical circuits and is a fundamental principle of the relationship between voltage, current, and resistance.
Learn more about Ohm's law
brainly.com/question/1247379
#SPJ11
The dot product of a unit vector with itself is 0
T/F
The dot product of a unit vector with itself is 1.
Is it true that the dot product of a unit vector with itself is 0?The dot product of two vectors is a scalar that is equal to the product of the magnitudes of the vectors and the cosine of the angle between them. When a unit vector is dotted with itself, the magnitude of the vector is 1 and the cosine of the angle between them is also 1 (since the angle between a vector and itself is 0 degrees). Therefore, the dot product of a unit vector with itself is 1. The dot product is a fundamental operation in vector algebra and has many applications in physics, engineering, and computer graphics. It is used to calculate the angle between vectors, project one vector onto another, and determine whether two vectors are orthogonal or parallel. Therefore the correct answer is T (True).
Learn more about dot product
brainly.com/question/29097076
#SPJ11
In some particle physics theories, the universe must have more than three spatial dimensions, but we experience only three. Why would we not see the other spatial dimensions
We don't see extra dimensions because they're compactified, limiting our perception to only three observable spatial dimensions.
In certain particle physics theories, the universe has extra dimensions beyond the familiar three.
However, we only experience three spatial dimensions because the additional dimensions are "compactified" or "curled up" on a scale too small to be directly observed.
This compactification keeps the extra dimensions from having significant effects on our daily lives and the macroscopic world.
These theories suggest that only particles or forces at extremely high energy levels or minuscule scales would interact with or reveal the presence of these extra dimensions, making them challenging to detect in everyday experiences.
For more such questions on dimensions , click on:
https://brainly.com/question/29755536
#SPJ11
Que masa tiene un objeto que acelera a 3. O m/s bajo la influencia una fuerza
The mass of the object which is accelerating at 3.0 m/s².
Using Newton's second law of motion, which states that the force acting on an object is equal to the object's mass times its acceleration, we can calculate the mass of an object that moves under the action of a force 3.0 accelerates at m/s2. This can be written mathematically as:
F= ma
where F is the applied force, m is the mass of the object, and a is its acceleration.
We can rewrite this equation to solve for m to determine mass:
m = f/a
By substituting the specified acceleration and force values into this equation, the following result can be obtained:
m = F/a = (force applied)/acceleration = (given force)/(3.0 m/s²)
Therefore, the mass of the item that is speeding at [tex]3.0 m/s^2[/tex] under the effect of the force may therefore be determined using this equation if we are aware of the applied force.
Learn more about Force, here:
https://brainly.com/question/13191643
#SPJ4
The question is in Spanish, the English translation of the question is:
What is the mass of an object that accelerates at 3.0 m/s under the influence of a force?
Heat terms are present in the mechanical energy balance are are absent in Bernoulli's equation
T/F
True, heat terms are present in the mechanical energy balance but are absent in Bernoulli's equation.
In the mechanical energy balance, energy can be in the form of kinetic, potential, internal, and heat energy. Heat is considered in this balance as it accounts for energy transfer between the system and its surroundings.
On the other hand, Bernoulli's equation is a specific form of the mechanical energy balance that applies to incompressible, inviscid fluids in steady flow. It only considers the kinetic and potential energy terms, ignoring the effects of heat transfer and internal energy.
To know more about heat and energy refer https://brainly.com/question/25603269
#SPJ11
One Sievert is an amount of radiation that would typically
One Sievert is an amount of radiation that would typically cause harmful effects in living organisms.
The Sievert is a unit of measurement used to quantify the biological effects of ionizing radiation on living tissue. It takes into account the different types of radiation and their varying levels of biological damage. Exposure to one Sievert of radiation is generally considered to be a significant dose that can lead to harmful effects in living organisms.
These effects can include radiation sickness, increased risk of cancer, and damage to DNA and other cellular structures. The Sievert is an important tool in radiation safety and helps in assessing and managing the risks associated with exposure to ionizing radiation.
You can learn more about living organisms at
https://brainly.com/question/17259533
#SPJ11
Does our result for field magnitude E just outside a conductor's surface contain any dependence on the distance from the conductor?
The field magnitude E outside a conductor's surface does contain dependence on the distance from the conductor.
An Electric field can be considered an electric property associated with each point in the space where a charge is present in any form. An electric field is also described as the electric force per unit charge.
The electric field (E) just outside a conductor's surface is determined by the surface charge density (σ) and the distance (r) from the conductor.
According to Gauss's Law, the electric field is given by:
E = σ / (2πε₀r)
Here, ε₀ is the vacuum permittivity, and r is the distance from the conductor.
As we can see from the formula, the field magnitude E is inversely proportional to the distance r from the conductor. So, the electric field strength decreases as the distance from the conductor increases.
Learn more about conductor:
https://brainly.com/question/24154868
#SPJ11
