Answer:
Advantages of being firstborn:
Increased attention and nurturing from parents, as they are often more invested in the success of their first child.Higher levels of academic and intellectual stimulation, as parents may provide more resources and opportunities for learning.Greater responsibility and maturity, as the firstborn often has to help care for younger siblings and take on leadership roles in the family.Disadvantages of being firstborn:
Increased pressure to set a good example, both academically and behaviorally, for younger siblings.Less individual attention from parents as more children are born and added to the family.More conflict with younger siblings as the firstborn may feel resentment about having to share resources and attention.A lack of opportunities for leadership and responsibility later in life, as younger siblings may fill these roles.Explanation:
Answer:
Advantages and disadvantages of being firstborn
Explanation:
Advantages of being a firstborn include having higher self-esteem and academic achievements, being seen as more responsible, and receiving extra attention from parents.
Disadvantages of being a firstborn include the pressure to live up to high expectations and the possibility of feeling resentful that their younger siblings get more freedom.
2 paged essay on acceleration, speed, time, distance how they’re connected and a sport as an example
In physics, the motion of an object is described by the concepts of acceleration, speed, time, and distance. These ideas are crucial for comprehending and analyzing athletic performance in a sport like track and field.
Define acceleration.
The pace at which an object's velocity changes is known as acceleration. It gauges how rapidly an object alters its direction and speed. Acceleration is essential for sprinters in track and field to get off the starting blocks fast and attain their top speed as soon as feasible. A sprinter with a high rate of acceleration will get off to a faster start and be in a better spot on the track.
Contrarily, speed is the rate at which an object travels a predetermined distance. In track and field, competitors must cross the distance as quickly as possible in events like the 100-meter dash and the 400-meter relay. Time is a crucial element in calculating an object's speed and range. An object's speed directly relates to how long it takes it to travel a certain distance. Timing is essential for athletes to compete against one other and set personal records in track and field.
Distance is a unit of measurement for the separation between two places. Distance is a crucial component in track and field because it allows competitors to cover as much territory as possible in events like the long jump.
To learn more about velocity use link below:
https://brainly.com/question/80295?source=archive
#SPJ1
the international space station travels at 25,000 km/hr. how long would it take an object traveling that speed to go from earth to the sun?
It would take an object traveling at 25,000 km/hr approximately 5,984,000 hours, or 249,333 days, or 683 years to travel from Earth to the Sun.
What is the distance of sun from earth?The distance between the Sun and the Earth is constantly changing as the Earth orbits the Sun in an elliptical path. On average, the distance from the Earth to the Sun is approximately 93 million miles (149.6 million kilometers).
The distance from Earth to the Sun is approximately 149.6 million kilometers. To calculate the time, it would take an object traveling at 25,000 km/hr to travel this distance, we can use the formula:
time = distance / speed
where distance is the distance from Earth to the Sun, and speed is the speed of the object in kilometers per hour.
Plugging in the values, we get:
time = 149.6 million km / 25,000 km/hr
Simplifying this expression, we get:
time = 5,984,000 hours.
Too know more about speed, visit:
https://brainly.com/question/28224010
#SPJ1
A meteor when enters into the earth atmosphere burns what happens to its energy?
Answer: Heat by Friction
Explanation: When traveling they have a lot of kinetic energy however upon entering the earth's atmosphere the kinetic energy transforms into heat by friction causing it to burn and some of that energy is turned into light.
which structural fragment would give rise to a characteristic triplet-quartet pattern in the 1h nmr spectrum?
A split signal in NMR spectroscopy is made up of three lines that are near together. The line height will be close to a 1:2:1 ratio. The CH3 group causes a triplet at 1.2 ppm in the simulated 1H-NMR spectra of 2-ethylphenol.
The amount of signals in 1H NMR spectroscopy tells you about the numerous sorts of chemically equivalent protons in the molecule. In NMR spectroscopy, chemically comparable H atoms in a molecule give a single signal. A triplet of doublets (tdd) happens when the two biggest coupling constants are the same. A triplet of triplets (tt) arises when the two greatest coupling constants and the two lowest coupling constants are the same.
A quarter note triplet is made up of three quarter notes played at the same time as two quarter notes or a single half note. In the United Kingdom, quarter note triplets are known as crotchet triplets. Tetra methy lsilane was chosen as the internal reference compound for 1H NMR because it exhibits a strong, crisp resonance line from its 12 protons, as well as a chemical shift at low resonance frequency compared to practically all other 1H resonances.
Learn more about frequency from here;
https://brainly.com/question/3795295
#SPJ4
Suppose you have two metal cubes, one made of iron and one made of aluminum. You transfer the same amount of heat Q to each of them. Which cube will have the higher final temperature, given they have the same masses and initialtemperatures? a. Iron Cube b. Aluminum Cube
If the same amount of heat Q is applied to each cube, the aluminum cube will have a greater end temperature than the iron cube.
The average thermal energy of the particles in a system is measured by temperature. It is a scalar number that represents the amount of heat energy present in a substance and is usually expressed in degrees Celsius (°C), Kelvin (K), or Fahrenheit (°F). The kinetic energy of the particles in a system, which is the energy associated with their motion, is proportional to temperature. When a system's temperature rises, so does the kinetic energy of its particles, resulting in quicker and more chaotic motion. In contrast, when the temperature drops, the The particles' kinetic energy reduces, resulting in slower and less chaotic motion.
Here, The eventual temperature of the two cubes will be determined by their respective heat capacities. The quantity of heat energy required to raise the temperature of a unit of mass of a material by one degree Celsius is defined as its specific heat capacity.
Aluminum has a greater specific heat capacity than iron, which means it takes more heat energy to increase its temperature by the same amount.
Learn more about kinetic energy from here;
https://brainly.com/question/26472013
#SPJ4
Oil having a density of 928 kg/m
3
floats on
water. A rectangular block of wood 4.42 cm
high and with a density of 979 kg/m3 floats
partly in the oil and partly in the water. The
oil completely covers the block.
How far below the interface between the
two liquids is the bottom of the block?
Answer in units of m.
Far below the interface between the two liquids is the bottom of the block is 0.0268 m.
We need to do the Sum of forces in the y direction:
Now
∑F = ma
B₁ + B₂ − mg = 0
ρ₁V₁g + ρ₂V₂g − mg = 0
ρ₁V₁ + ρ₂V₂ = m
ρ₁V₁ + ρ₂V₂ = ρV
ρ₁Ah₁ + ρ₂Ah₂ = ρAh
ρ₁h₁ + ρ₂h₂ = ρh
Now
(930 kg/m³)h₁ + (1000 kg/m³)h₂ = (968 kg/m³) (4.93 cm)
Since the block is fully submerged, h₁ + h₂ = 4.93 cm.
Now
(930 kg/m³) (4.93 cm − h₂) + (1000 kg/m³)h₂ = (968 kg/m³) (4.93 cm)
h₂ = 2.68 cm
h₂ = 0.0268 m
What is a block?
The length of a street from one spot where a road crosses it to the next, or just this portion of a street, especially in a town or city.To know more about blocks, click the link given below:
brainly.com/question/17638607
#SPJ1
In terms of environmental impact, what’s the difference between natural gas, coal, and biomass? Consider both carbon dioxide (CO2) emissions and acid rain
In terms of producing the most energy per unit of carbon dioxide released, natural gas is the best fossil fuel. Because a new crop can be planted after each harvest, biomass is a renewable resource and a low-carbon fuel.
Effects of human activities on the biophysical environment, or environmental challenges, most frequently include. Numerous human activities such as overpopulation, pollution, the burning of fossil fuels, and deforestation have an adverse effect on the physical environment. Climate change, soil erosion, poor air quality, and undrinkable water have all been brought on by changes like these.
There are three main ones that generally have an impact on most of them: the loss of biodiversity, water pollution, ocean acidification, and climate change
Learn more about environmental impact here:
https://brainly.com/question/13389919
#SPJ1
The distance from Earth to the Moon is 2.389 x 105 mi. Convert this distance to standard form.
Answer:
0.0227528381
Explanation:
2.389/105
A space alien named Zorg is working hard. In fact, as time goes by, Zorg works harder and
harder: Zorg's power output depends on time as P= b3 where b is a constant coefficient.
How much work will Zorg be able to perform between t = 0 and t = T?
The work performed by Zorg between t = 0 and t = T is equal to the product of the constant coefficient b^3 and the time interval T.
How did we get the value?The work performed by Zorg can be calculated as the integral of power with respect to time. If Zorg's power output is given by P = b^3, then the work performed by Zorg between time t = 0 and t = T can be calculated as:
W = ∫_0^T P(t) dt = ∫_0^T b^3 dt = b^3 * t |_0^T = b^3 * T
So, the work performed by Zorg between t = 0 and t = T is equal to the product of the constant coefficient b^3 and the time interval T.
learn more about work done: https://brainly.com/question/25573309
#SPJ1
If it takes 2.0h for cathy to walk from her house to her school at a rate of 1.0 m/s how far is her school from her house
The distance Cathy's school is from her house can be calculated by multiplying the rate (1.0 m/s) by the time (2.0 h) that it takes her to walk there.
What is school?
School is an institution for teaching and learning. It is the place where students come to acquire knowledge, skills and values. It is a place where students learn to interact with peers, and to think critically and independently. School is a place where students form bonds with teachers and develop relationships with their peers. School helps students become well-rounded individuals, with a broad understanding of the world and good qualifications to pursue a chosen career. School also provides students with opportunities to explore their interests and passions, and to develop their talents.
Distance = Rate x Time
Distance = 1.0 m/s x 2.0 h
Distance = 2.0 m
Therefore, Cathy's school is 2.0 m from her house.
To learn more about school
https://brainly.com/question/26117248
#SPJ1
? switching is a technique to control general light levels by switching individual lamps or groups of lamps in a multi-lamp fixture separately.
Switching is a technique commonly used to control general light levels in buildings.
It involves the use of individual switches to control the lamps or groups of lamps within a multi-lamp fixture separately. This enables the user to control the amount of light produced in different areas of a room or building according to their needs. Switching can be done manually or automatically, using various technologies such as timers, motion sensors, and light sensors. It offers a simple and cost-effective way to improve energy efficiency and reduce energy consumption, as well as to create more comfortable and flexible lighting environments that meet the specific needs of different users. Switching is a technique commonly used to control general light levels in buildings.
Learn more about light :
https://brainly.com/question/15200315
#SPJ4
What does oscillation and propagation mean?
Oscillation is the regular back and forth motion of a periodic wave, while propagation is the process of transferring a signal from one point to another. Oscillation and propagation are important concepts in physics and engineering, as they are used to understand, model, and control the behavior of various physical systems. Oscillation and propagation are also used to understand and manipulate the behavior of light, sound, and other forms of energy.
What is one property that all particles of matter have in common?
Answer:
All particles of matter have mass, and they are composed of atoms.
the nearest star is at a distance of 4.4 light-years. given that light travels at 300,000 km/s in space, how far away is the nearest star in kilometers (km)? (1 year
The nearest star is approximately 40.1 trillion kilometers away from us.
The nearest star is located 4.4 light-years away from us. Since one light-year is defined as the distance that light travels in one year and light travels at a speed of 300,000 km/s.
we can calculate the distance to the nearest star in kilometers by multiplying the speed of light by the number of seconds in a year and then multiplying by 4.4:
Distance to nearest star = 300,000 km/s * 60 seconds/minute * 60 minutes/hour * 24 hours/day * 365 days/year * 4.4 years
= 40,152,000,000,000 kilometers
Therefore, the nearest star is approximately 40.1 trillion kilometers away from us.
To learn more about light-years:
https://brainly.com/question/76984
#SPJ4
when is an explicit time integration scheme for one-dimensional heat conduction equation with second order spatial discretization unstable?
Integration scheme for one-dimensional heat conduction equation with second order spatial discretization can be unstable if the time step used in the scheme is too large. Specifically, the stability of the scheme depends on the value of the dimensionless Courant-Friedrichs-Lewy (CFL) number, which is given by αΔt/Δx^2, where α is the thermal diffusivity, Δt is the time step, and Δx is the grid spacing.
If CFL number is greater than a certain critical value the scheme will become numerically unstable and the solution will not converge to a physically realistic result. Therefore, when using an explicit time integration scheme for the heat conduction equation, it is important to choose a time step that satisfies the stability criterion.
To Know more about Heat conduction, here
https://brainly.com/question/12947964
#SPJ4
A wooden ball with a mass of 0.45 kg is at rest when it is tapped by a wooden mallet that applies an average force of 83 N to the ball. After contact with the mallet, the ball moves forward at 1.3 m/s. How long was the mallet in contact with the ball?7.0 milliseconds3.7 milliseconds2.4 milliseconds.59 milliseconds
The mallet in contact with the ball is 2.4 milliseconds.
The amount of time that the mallet was in contact with the ball can be calculated using the equation for impulse, which is equal to the change in momentum. Force and time combine to create an impulse.. Mathematically, it can be expressed as:
Impulse = Change in Momentum = F * t
Change in momentum is the product of mass and change in velocity.Therefore, the time that the mallet was in contact with the ball can be calculated as follows:
[tex]t = \frac{Impulse }{F }\\ \\= \frac{(0.45 kg * 1.3 m/s) }{ 83 N }\\\\= 2.4 milliseconds[/tex]
Therefore,The mallet in contact with the ball is 2.4 milliseconds.
learn more about Impulse Refer:brainly.com/question/16980676
#SPJ4
what is the maximum mass that can hang without sinking from a 70- cm c m diameter styrofoam sphere in water? assume the volume of the mass is negligible compared to that of the sphere. express your answer to two significant figures a
To find the maximum mass that can hang without sinking from a 70-cm diameter styrofoam sphere in water, we need to calculate the buoyant force exerted by the water on the sphere and compare it to the weight of the sphere and the hanging mass.
The maximum mass that can hang without sinking from a 70-cm diameter styrofoam sphere in water is approximately 1763 kg.
What is buoyant force?The upward force that a fluid (such water or air) applies to an item that is partially or completely submerged in it is known as buoyant force. Archimedes' principle governs this force, which arises from the pressure difference between the top and bottom of the item brought on by the weight of the fluid.
To calculate the maximum mass that can hang without sinking from a 70-cm diameter styrofoam sphere in water:
The buoyant force is equal to the weight of the water displaced by the sphere, which is given by:
Fb = Vwater x ρwater x g
Where Vwater is the volume of water displaced by the sphere, ρwater is the density of water, and g is the acceleration due to gravity.
The volume of water displaced by the sphere is equal to the volume of the sphere, which is:
Vsphere = (4/3)πr^3 = (4/3)π(35 cm)^3 = 179594 cm^3
The density of water is approximately 1 g/cm^3, and the acceleration due to gravity is 9.8 m/s^2.
Therefore, the buoyant force on the sphere is:
Fb = Vwater x ρwater x g = 179594 cm^3 x 1 g/cm^3 x 9.8 m/s^2 = 17618 N
Now we can find the maximum mass that can hang without sinking by comparing the buoyant force to the weight of the sphere and the hanging mass. The weight of the sphere can be calculated using its volume and density, which is given as:
Wsphere = Vsphere x ρsphere x g
where ρsphere is the density of the styrofoam sphere, which is approximately 0.03 g/cm^3.
Thus, the weight of the sphere is:
Wsphere = Vsphere x ρsphere x g = 179594 cm^3 x 0.03 g/cm^3 x 9.8 m/s^2 = 526 N
To find the maximum hanging mass, we subtract the weight of the sphere from the buoyant force:
Fb - Wsphere = m x g
Where m is the maximum hanging mass.
Substituting the values we have calculated, we get:
17618 N - 526 N = m x 9.8 m/s^2
Therefore,
m = (17618 N - 526 N) / (9.8 m/s^2) = 1763 kg (to two significant figures)
Hence, the maximum mass that can hang without sinking from a 70-cm diameter styrofoam sphere in water is approximately 1763 kg.
To know more about buoyant force, visit:
https://brainly.com/question/17009786
#SPJ4
If a neighbor pushes a lawnmower four times
exerts only half the force, which one of you
as far as you do but
does more work and by
how much?
It is quite easy.
Say that the work you did was w, so that the force you exert is F.
Furthermore, the displacement is s.
How can you explain this situation?AT THIS TIME
the work you(w)=Fs
Now, AT YOUR NEIGHBOR'S CASE.
Let his work be credited as W
IF, then force is half, or F/2.
with five times the displacement.
therefore, work done (W)=F/2*5s
hence, W=2.5Fs
To know more about work visit:
https://brainly.com/question/18094932
#SPJ1
a thin uniform cylindrical turntable of radius 2.1 m and mass 34 kg rotates in a horizontal plane with an initial angular speed of 7.7 rad/s. the turntable bearing is frictionless. a clump of clay of mass 12 kg is dropped onto the turntable and sticks at a point 1.1 m from the point of rotation. treat the clay as a point mass. find the angular speed of the clay and turntable.
The clay's angular speed is 6.45 rad/s.
The energy loss to thermal energy is 1500.51 J
This is defined as the attribute of any rotating object that is supplied by the moment of inertia multiplied by the angular velocity.
The conservation of angular momentum principle states that angular momentum remains constant until an external force is applied.
L = angular momentum (I*)
where I denotes the moment of inertia and w denotes the angular speed
Angular momentum previously: Lb = It*0
Angular momentum following: La = (It + Ic)*1
(It + Ic)*1 = It*0
1 = the angular velocity after
0 = 1*[It/(It + Ic)])
ω₁ = I₀ω₀ / I₁
I0 = The turntable's moment of inertia
A cylinder's moment of inertia Equals 12mr2.
I₀ = ½(34)(2.1) (2.1) = 74.97 kgm²
I₁ = I0 + I(clay) = 74.97 kgm2 + m(clay)*r(clay)2 = 74.97 kgm2 + (12)*(1.1)² = 89.49 kgm²
1 = I0/I1 = 74.97*7.7/89.49= 6.45rad/s
Energy conversion to thermal energy
Some energy is wasted when the clay deforms and clings to the turntable, therefore energy is not preserved. We can conclude:
E₁= ½I₁ω₁² = ½ × 89.49 × 6.45² = 3723.007
E₀ = ½I₀ω₀² = ½ × 74.97 × 7.7² = 2222.496
Et= E₁ - E₀ = 3723.007-2222.496 = - 1500.51 J
This number is negative, indicating that 1500.5 J of thermal energy was wasted.
Learn more about angular velocity from here;
https://brainly.com/question/29557272
#SPJ4
what happens to the brightness of bulb a if you replace bulb b with a short circuit?
If bulb B is replaced with a short circuit, it will effectively bypass the circuit that includes bulb A. As a result, the current in the circuit will increase, which may cause the bulb A to become brighter.
What is a circuit?A circuit is a closed path or loop through which electrical current can flow. It is made up of various components that work together to allow the flow of electricity. The basic components of a circuit include a power source, such as a battery or generator, wires or conductors that carry the current, and various other components such as switches, resistors, capacitors, and diodes, which help to control and modify the flow of electricity.
When a circuit is closed, the electrical current flows from the power source through the components and back to the power source. This flow of electricity is usually measured in amperes (amps) and is controlled by the voltage of the power source and the resistance of the components in the circuit.
Circuits can be either series circuits, where the components are arranged one after the other in a single loop, or parallel circuits, where the components are arranged in multiple branches, allowing the current to flow through each component independently. Circuits are used in a wide range of electrical and electronic devices, from simple household appliances to complex computer systems and telecommunications networks.
If bulb B is replaced with a short circuit, it will effectively bypass the circuit that includes bulb A. As a result, the current in the circuit will increase, which may cause the bulb A to become brighter. However, it's also possible that the increased current could cause bulb A to burn out or even damage the circuit itself. In general, it's not recommended to create a short circuit intentionally as it can be dangerous and potentially cause damage to the electrical system.
To know more about Circuit, visit:
https://brainly.com/question/2969220
#SPJ4
HELP ME ASAP. this is science unit 2 waves
Waves A and B have clearly different frequencies.
What is a frequency?
Using a stroboscope is an antiquated technique for determining the frequency of spinning or vibrating objects. The frequency of this strong, repeatedly flashing light (strobe light) can be changed using a precise timing circuit. The rotating item is the target of the strobe light, which has its frequency moved up and down. The object completes one cycle of oscillation and returns to its original position between flashes of light when the frequency of the strobe and the rotating or vibrating object are equal. As a result, when illuminated by the strobe, the object appears stationary. The calibrated readout on the stroboscope can then be used to determine the frequency. The method's drawback is that an object rotating at a rate that is an integer multiple of the strobing.To know more about frequencies, click the link given below:
https://brainly.com/question/5102661
#SPJ1
7. A fisherman sees a lobster cage on the sea floor and tries to retrieve it by lowering a winch directly
over where the cage appears to be. The winch lands behind the cage.
a) Explain why the cage isn't exactly where he thought it was.
b) The fisherman uses an underwater camera to get a better view. Light travels from the
lobster cage and hits the camera lens at an angle of 37.2° to the normal. If water has a
refractive index of 1.40 and the lens has a refractive index of 1.49, at what angle to the
normal will the refracted ray in the camera lens be?
Explanation:
a) The fisherman sees the cage at a different location than where it actually is because of the refraction of light in water. When light travels from air into water, its speed decreases, causing the light to bend or refract. This means that the light entering the fisherman's eyes is coming from a slightly different direction than the actual position of the cage, making it appear as if the cage is in a different location.
b) To calculate the angle of the refracted ray in the camera lens, we can use Snell's law, which states that the ratio of the sine of the angle of incidence to the sine of the angle of refraction is equal to the ratio of the refractive indices of the two materials.
Using this formula, we can calculate the angle of refraction in the lens:
sin(θ2) / sin(θ1) = n2 / n1
where n1 is the refractive index of water (1.40), n2 is the refractive index of the lens (1.49), and θ1 and θ2 are the angles of incidence and refraction, respectively.
Solving for θ2, we find:
θ2 = sin^-1(sin(θ1) * n1 / n2) = sin^-1(sin(37.2°) * 1.40 / 1.49) = 35.0°.
So, the refracted ray in the camera lens will be at an angle of 35.0° to the normal.
A brass rod is 2m long at a certain temperature.Calculate the linear expansion of the rod for a temperature change of 100K (Take the linear expansivity of brass as 1.8 x 10^-5K^-1)
Answer:
To calculate the linear expansion of a brass rod due to a temperature change of 100K, we can use the formula:
ΔL = α * L * ΔT
where:
α = linear expansivity of brass (1.8 x 10^-5K^-1)
L = original length of the rod (2m)
ΔT = change in temperature (100K)
Plugging in the values:
ΔL = 1.8 x 10^-5K^-1 * 2m * 100K = 0.036m
So the linear expansion of the brass rod due to a temperature change of 100K is 0.036 meters.
Sam ran a 2000-meter race. He started at 9:00 AM and finished at 9:05 AM.
He started out fast but slowed down toward the end. Calculate Sam’s
average speed during the race.
Answer: Approximately 6.67 meters per second.
Explanation:
Speed is a quantity measured in meters per second, so because the elapsed time is 5 minutes, let's turn it into seconds. 5 minutes multiplied by 60 seconds is 300 seconds.
2000 meters divided by 300 seconds is about 6.67 meters per second, which is the speed.
The electric force is much stronger than the gravitational force, and yet the gravitational force is the dominant force that we notice in our everyday interactions and at a planetary or larger scales. why?
The electric force between these electrons is 2.40 x 1043 times bigger than the gravitational force
Why electric force is stronger than gravitational force?However gravitational force moves on mass while the electric force acts on charge. Gravitational forces are only captivating while electric fields can be attractive/repulsive. The electric field is much stronger than the gravitational field.
Electrostatic forces are much stronger than gravitational forces. This is because gravity depends on mass, atoms have tiny masses so the gravitational forces joining them are close to zero. Whereas, the electrostatic force connected to charges is bigger.
So we can conclude that The gravitational force is extremely weak compared to the electric force.
Learn more about gravitational force here:https://brainly.com/question/24783651
#SPJ1
The reason that the gravitational force is more noticeable in our everyday interactions and at planetary or larger scales is because it is an attractive force that acts between all masses, and its strength decreases much more slowly with distance than the electric force.
What is the interaction of electric force and gravitational force?The electric force and the gravitational force are indeed very different in their strength. The electric force between two charges is proportional to the product of their charges and inversely proportional to the square of the distance between them, whereas the gravitational force between two masses is proportional to the product of their masses and inversely proportional to the square of the distance between them. This means that for a given distance, the electric force between two charges can be many orders of magnitude stronger than the gravitational force between two masses.
However, the reason that we notice the gravitational force more in our everyday interactions and at planetary or larger scales is because it is an attractive force that acts between all masses, not just between two charged objects. This means that the gravitational force is felt by everything with mass, and it is always attractive, which means that it pulls objects toward each other. On the other hand, electric forces can be both attractive and repulsive, depending on the sign of the charges, and they are only felt by charged objects.
Learn more about electric field here: https://brainly.com/question/14372859
#SPJ1
A car speeds up from 13. 5 m/s to 34. 4 m/s in 4. 8 seconds. What is the average speed during this time? round your answer to 2 decimal places
The average speed during the acceleration is 23.95 m/s.
The average speed of the car during the time it takes to accelerate can be calculated as the average of the initial and final speeds.
Speed is equal to the total distance covered by the car divided by the time required to cover the distance.
As per the given information,
The initial speed of the car is 13.5 m/s, and
the final speed is 34.4 m/s.
Therefore, the average speed can be calculated as:
Average speed = (initial speed + final speed) / 2
Average speed = (13.5 m/s + 34.4 m/s) / 2
Average speed = 23.95 m/s
Rounding to two decimal places, the average speed during the acceleration is 23.95 m/s.
For a similar question on Speed,
https://brainly.com/question/6504879
#SPJ4
comets tend to be ________ than asteroids, and it is estimated that there are far ___________ large comets than large asteroids.A. Crust and MantleB. Faster and MoreC. Hydrogen and HeliumD. Change in climate and core
"Comets tend to be faster than asteroids, and it is estimated that there are far more large comets than large asteroids." Correct option is B.
As comets typically originate from farther out than asteroids do, they move at faster speeds when they cross Earth's orbit: An asteroid would need to be larger than 10 kilometres in diameter, whereas a comet would only need to be about 7 kilometres in diameter to hit Earth with enough energy to form Chicxulub crater.
Two factors that differentiate a comet from an asteroid are shape of the orbit and chemical composition.
There are asteroids that are spherical, curved, and even have satellites. A comet circles the Sun similarly to an asteroid, but unlike an asteroid, it is made of ice and dust. Therefore, a comet's ice and dust composition begin to vaporise as it approaches the Sun. Consequently, a comet looks fuzzy and/or has a tail when viewed through a telescope.
To know more about asteroids:
https://brainly.com/question/1939309
#SPJ4
you are standing 1.00 meters away from a sound source. at your position, the sound has an intensity of 75.0 db. how much farther from the sound source must you go for a 15.0 db reduction in intensity?
The sound intensity follows the inverse square law, so a 15.0 dB reduction in intensity corresponds to a distance twice as far from the sound source that is 2.00 meters away from the sound source.
The sound power at a given point diminishes as the separation from the sound source increments, observing the converse square regulation. This intends that assuming the separation from the sound source is multiplied, the sound force will diminish by 6.02 dB, which is a portion of the power. To accomplish a 15.0 dB decrease in force, the separation from the sound source should be expanded by an element of [tex](10^(15.0/10))^(1/2)[/tex] = 5.62, since each variable of 10 relates to a 10 dB change in power. Consequently, the separation from the sound source should be expanded by a component of 5.62, which compares to roughly 2.00 meters, to accomplish a 15.0 dB decrease in power from 75.0 dB to 60.0 dB.
To learn more about sound intensity, refer:
https://brainly.com/question/30050170
#SPJ4
4) based on your data, compare the superposition principle for the electric fields and electric potential?
The electric field follows vector superposition while the voltage follows scalar superposition, which is the difference between the two superpositions (i.e., The net electric field at any point is the vector sum of the electric field due to the individual charges).
What is Electric field?
The term "electric field" refers to the physical field that surrounds electrically charged particles and acts to either attract or repel all other charged particles in the field (or E-field). One of the four fundamental interactions, or forces, of nature is the electromagnetic field, which manifests in both electric and magnetic fields. Electric fields, which are significant in many parts of physics, are used in electrical technology.
For instance, in atomic physics and chemistry, the electric field serves as the attractive force that holds the atomic nucleus and electrons of an atom together.
Moreover, it is the force that causes molecules to form when atoms bind chemically.
To learn more about Electric field visit;
https://brainly.com/question/15800304
#SPJ4
a). Show that the average speed of Leslie is 10 km/h when she runs to the store 5 km away in 30 min.
(b) How fast is this in m/s?
6. (a) Calculate the acceleration for a ball that starts from rest and rolls down a ramp and gains a speed of 30 m/s in 4 s.
(b) What would acceleration be if the ball rolls at 60 m/s?
Acceleration is a physical quantity that describes the rate of change in velocity of an object over time. It is a vector quantity, which means it has both magnitude and direction, and is measured in units of meters per second squared (m/s²).
Describe Acceleration
When an object is accelerating, its velocity is changing, either by increasing or decreasing in speed or changing direction. The magnitude of the acceleration depends on the force applied to the object, which can come from a variety of sources such as gravity, friction, or electromagnetism.
The formula for acceleration is:
a = (v2 - v1) / t
where a is the acceleration, v2 is the final velocity, v1 is the initial velocity, and t is the time it takes to go from v1 to v2.
If an object is moving in a straight line with a constant acceleration, its velocity can be calculated by the following equation:
v = v0 + at
where v is the final velocity, v0 is the initial velocity, a is the acceleration, and t is the time.
Acceleration is a fundamental concept in physics and is used to describe the motion of objects in a wide variety of situations, including free-fall, projectile motion, circular motion, and the behavior of fluids. It is also essential in engineering and design, where it is used to calculate the performance and efficiency of machines and vehicles.
(a) To find the average speed of Leslie, we can use the formula:
average speed = total distance / total time
Leslie runs to the store 5 km away in 30 minutes (0.5 hours), so the total distance is 5 km and the total time is 0.5 hours.
average speed = 5 km / 0.5 hours = 10 km/h
Therefore, the average speed of Leslie is 10 km/h when she runs to the store 5 km away in 30 minutes.
(b) To convert km/h to m/s, we can use the conversion factor:
1 km/h = 0.2778 m/s
So, the speed of Leslie in m/s is:
10 km/h × 0.2778 m/s/km/h = 2.78 m/s
Therefore, Leslie's speed is 2.78 m/s.
(a) To calculate the acceleration of the ball, we can use the formula:
acceleration = (final velocity - initial velocity) / time
The ball starts from rest, so the initial velocity is 0 m/s. After 4 seconds, it gains a speed of 30 m/s.
acceleration = (30 m/s - 0 m/s) / 4 s = 7.5 m/s²
Therefore, the acceleration of the ball is 7.5 m/s².
(b) If the ball rolls at 60 m/s, we can use the same formula to find the acceleration:
acceleration = (60 m/s - 0 m/s) / 4 s = 15 m/s²
Therefore, the acceleration of the ball would be 15 m/s² if it rolls at 60 m/s.
To know more about speed visit:
brainly.com/question/13263542
#SPJ1
