This is because the microwave oven heats the food by heating the water molecules that compose it.
This is achieved by increasing the vibration amplitude of the water molecules and their kinetic energy, therefore, increasing their temperature.
So, if the element that gets into the microwave oven does not contain water (as is the case of an empty paper plate), it will not heat up.
Therefore, this is all about the transfer of energy. This the principle on which microwave works. The transfer of heat energy from one object to the other increases the kinetic energy of the particle of the other object. But no object mean no heat energy transfer and the plate isn't heated.
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when a rigid object (like a merry-go-round) rotates about a fixed axis, what is true about all the points in the object?
when a rigid object (like a merry-go-round) rotates about a fixed axis, it is true about all the points in the object.
What is rigid object?
The idea of a body that does not deform or alter shape is a "hard body." Formally, it is described as a collection of particles having the property that the distance between them stays constant throughout the body's motions.
What is fixed axis?
The rotation of a rigid body, or an item that does not deform when it moves, around a fixed axis is referred to as fixed-axis rotation. We'll demonstrate how to apply the theories we've discovered so far regarding translational motion to a rotating object around a fixed axis.
Everybody experiences the same angular acceleration.
Therefore, when a rigid object (like a merry-go-round) rotates about a fixed axis, it is true about all the points in the object.
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an experiment is conducted to compare 3 equally spaced dryer temperatures on fabric shrinkage. the researcher samples 15 pieces of wool fabric (labeled specimen 1-specimen 15). each temperature has 5 samples
In order to get a pure sample after the reaction and to get rid of all the extra moisture in the product, drying to constant weight is crucial.
What is dried to constant weight?According to the definition of "dried to constant weight," the drying process must be continued until at least two successive weights do not differ by more than 0.50 mg per g of the substance ingested. The second weighing will take place after a further hour of drying.Using this method, all water that may be present in a sample is heated off in order to totally dry it. This essentially guarantees that the sample's bulk consists solely of the sample and is free of varying amounts of water. A sample's dryness cannot be determined simply by looking at it. Drying a sample to its constant weight is the only reliable technique to know if it is dry. only afterTo Learn more About drying to constant weight refer to:
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When using a microscope and the low objective lens is being used then which adjustment can you use?.
When using a microscope and the low objective lens is being used also we use fine adaptation or fine adjustment.
How is the light on a microscope acclimated?
Result for an image Which area of the microscope enables you to change how the slide is deposited in relation to the light source.
On the side of the emulsion(compound) microscope body is where the rheostat control for the microscope is located. generally, it'll be a clump that may be moved clockwise to consolidate the light or counterclockwise to dim it.
The condenser, which is deposited beneath the stage, focuses the light to produce strong, indeed illumination in the area girding the object being seen. Critical illumination is the process of fastening the light source's image via the condenser directly onto the airplane of the instance.
Therefore, When using a microscope and the low objective lens is being used also we can use the fine adaptation or fine adjustment.
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a massive linebacker collides with a smaller halfback at midfield. the force experienced by the linebacker is greater than the force experienced by the halfback. the resulting acceleration of the linebacker is [ select ] the resulting acceleration of the halfback.
The answer to the first blank is equal to and the second blank is less than.
How is force and acceleration related ?The acceleration of an object rises proportionally to the force applied to it. We can state that force and acceleration are identical because the mass does not change when the acceleration rises. So, doubling the force also doubles the acceleration.
Force and acceleration are directly correlated, as demonstrated by Newton's second law of motion. An object of a given mass will accelerate more quickly the more force is applied to it. For instance, when the force acting on an item is doubled, so is the acceleration.
The correct rewritten statement :
a massive linebacker collides with a smaller halfback at midfield. the force experienced by the linebacker is equal to the force experienced by the halfback. the resulting acceleration of the linebacker is less than the resulting acceleration of the halfback.
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Rocket final velocity | Problem A rocket with total mass m-is in deep space, traveling with velocity vi in the x-direction. The rocket suddenly shoots some of its fuel out in the y-direction. The mass of the fuel is 1/5 the total mass of the rocket. Which of the following could be the final velocity of the rocket? O V = V; <-1/2,5/4> ما O Ve = V; <1/2, -5/4> O V+ = V; <4/5, -1/2> O V1 = V; <-4/5, 1/2> O V = V; <5/4, -1/2> O V+ = V; <-5/4, 1/2>
The final velocity of the rocket is Vf = Vi < 5/4, -1/2 >. Hence, Option E is the correct answer.
We have a mass of the rocket = m
The velocity of the rocket = vi
The rocket is traveling in the x-direction and the fuel is ejected in the y-direction.
mass of the fuel= m/5
the speed at which the fuel is ejected= 2vi
Now, let us find the final velocity along the x-direction i.e. vx
[tex]m_{rocket}[/tex] * vi = [tex](m_{rocket} -m_{fuel})[/tex] * vx
m*vi = (m-m/5)vx
m*vi = (4/5)m*vx
hence, we have vx = (5/4) vi
Similarly, along the y- direction,
0 = [tex]m_{fuel}[/tex] * 2vi + [tex](m_{rocket} -m_{fuel})[/tex]vy
0 = m/5 * 2vi + (m-m/5)vy
0 = m/5 * 2vi + (4/5)m * vy
(4/5)m * vy = - m/5 * 2vi
(4/5)m * vy = - m/5 * 2vi
vy = -(1/2)vi
Hence, the final velocity is vf = vi <5/4, -1/2>.
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The complete question is-
Rocket final velocity | Problem A rocket with total mass m-is in deep space, traveling with velocity vi in the x-direction. The rocket suddenly shoots some of its fuel out in the y-direction at the speed 2vi. The mass of the fuel is 1/5 the total mass of the rocket. Which of the following could be the final velocity of the rocket?
O V = V; <-1/2,5/4> ما O Ve = V; <1/2, -5/4> O V+ = V; <4/5, -1/2> O V1 = V; <-4/5, 1/2> O V = V; <5/4, -1/2> O V+ = V; <-5/4, 1/2>
a uniform disk turns at 3.0 rev/s around a frictionless central axis. a nonrotating rod, of the same mass as the disk and length equal to the disk's diameter, is dropped onto the freely spinning disk(figure 1). they then turn around the spindle with their centers superposed. What will be the angular frequency in rev/s of the combination when they start rotating together.
The angular frequency in rev/s of the combination when they start rotating together is 1.8 rev/s.
Apply conservation of angular momentum:
Ii.ωi=If.ωf
⇒ 1/2mR² ×3.0=( 1/2mR²+m(2R)²/12)ωf
⇒ωf =1.8rev/s.
A scalar representation of rotation rate in physics is called angular frequency, or "". It speaks of the angular displacement per unit of time, the rate of change of a sinusoidal waveform's phase, or the rate of change of the sine function's argument. The difference between angular frequency (measured in radians per second) and frequency (measured in cycles per second, also known as Hz) is two. Instead of the letter f, the symbol for frequency in this figure is. an axis-centered rotating sphere. Points further from the axis move more quickly, fulfilling = v / r. Angular frequency (), also referred to as radial or circular frequency, calculates the amount of angular momentum per unit of time. Therefore, it is measured in degrees (or radians) per second.
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Why does reactivity decrease as you move from left to right on the periodic table?.
As we move from left to right the metalic properties decreases and non-metalic property increases hence reactivity of the elements decreases.
What happen to reactivity of Metal as they move from left to right ?It happens because there are more valence shells and less attraction between valence electrons and the nucleus. Consequently, the propensity to take electrons from other atoms declines. Atoms become more electronegative as they move through a period.
The ability to lose electrons increases generally with atom size. The capacity to lose electrons increases with increasing shielding. The most active metal is to the left and down because metallic character grows down the table and diminishes across it.
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If a wave has a wavelength of 50 m and is traveling through water that is 30 m deep, what kind of wave is this?.
The wave having a wavelength of 50 m and traveling through water that is 30 m deep would be a deep water wave.
According to the definition, a deep water wave is a wave that occurs at water depths that is more than half the wavelength of the wave.
In the given case, the wavelength of the wave is 50 m and the depth of the water is 30 m which is more than half of the wavelength of the wave which is 25 m. Thus, the depth of the water is more than half of the wavelength of the wave. This makes the wave a deep water wave.
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What has a wavelength of 10 m?.
Therefore, the frequency of the wave is 10 Hz when it has wavelength of 10 meters.
Wavelength (λ) = 10 nm
Speed of the wave = 340 m/s
To find:
The frequency of the wave
Formula used:
N=v/λ
where
n is the frequency
v is the speed
λ is the wavelength
Step-by-step explanation:
n=340/10
n=10Hz
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when waves reach shallow water, they are often bent and tend to become parallel to the shore. this process is termed . group of answer choices reflection refraction oscillation translation
In shallow water, waves frequently bend and start to run parallel to the shore. Refraction is the word for this procedure.
How is refraction accomplished?Refraction, which also happens with sound, movement, and other waves, is the bending if light as it passes through transparent materials. Because of this bending brought on by refraction, we are able to make lenses, magnifying glasses, dichroic, and rainbows.
Refraction vs. reflection: what are they?When light strikes a medium on a plane, reflecting is the act of the light reflecting back. Refraction seems to be the process by which a material changes the route that light takes as it passes through it, allowing the light to bend. So, the main distinction between reflection and reflection is this. Mirrors are where this phenomenon typically occurs.
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the following diagrams are the same as those from part a. this time, rank the pairs from left to right based on the size of the acceleration the asteroid on the left would have due to the gravitational force exerted on it by the object on the right, from largest to smallest. view available hint(s)for part c resethelp two accelerating cars. the car on the left accelerates much faster than the car on the right.
Newton's second law states that the asteroid with the greatest acceleration will also be the one that is subject to the correct object's greatest gravitational pull. Because of this, the ranking for Part A and Part B are identical.
When there are unbalanced forces acting on an object, Newton's second law of motion applies. According to the second law, the mass of the item and the net force acting on it both affect how quickly an object accelerates. An object's acceleration is directly proportional to the net force applied to it and inversely proportional to its mass. An object's acceleration increases as the amount of force exerted on it do. A decreasing acceleration is caused by an increase in an object's mass.
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with what constant velocity would you have to push or pull the rod in order to make the magnetic force zero
Energy and Power Due to Motional Electromotive Force. Emf may be prompted in primary ways: Due to the movement of a conductor withinside the presence of a magnetic field. Due to the extrude withinside the magnetic flux enclosed via way of means of the circuit.
The length of the voltage may be various through 3 factors: The length of the magnetic discipline. The greater flux strains there are, the greater flux strains there are for the conductor to cut.
The lively period of the conductor. The velocity at which the conductor passes thru the discipline. Moving the bar to the proper decreases the vicinity of the loop, reducing the flux.
The caused modern need to generate a discipline out of the page. This calls for a counter-clockwise modern. The flux thru the loop is converting, so the loop attempts to oppose the alternate. The flux is converting due to the fact the bar is moving, converting the place of the loop. To oppose the alternate the loop makes the bar gradual down.
Thus the velocity (and the brought on emf and current) lower exponentially to zero.
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analyze the cycling of matter and flow of energy within ecosystems through the processes of photosynthesis and respiration
Electrons go from glucose to oxygen during cellular respiration, creating water and release of energy. They move in the other direction during photosynthesis, beginning with water and ending with glucose.
What types of energy are there?Biochemical, electrical, radiant, mechanical, thermal, and nuclear energy are the six main types of energy. Additional forms including electrochemical, acoustic, electromagnetic, and others might be addressed in other studies.
The source of energy.Atomic nuclear processes in the Sun's core produced the power in the atoms. According to physicists, this Big Bang did. The simple answer is that we have always encountered and used energy, and that this has been true since the universe's creation.
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find the fluid force on the vertical plate submerged in water, where the dimensions are given in meters and the weight-density of water is 9800 newtons per cubic meter. newtons
The fluid force for the given rectangle is 171,500 N.
Consider the following formula for fluid force against a vertical flat plate:
If a plate is vertically submerged in a fluid of weight-density w from y=a to y=b on the y-axis. Then,
F = [tex]\int\limits^a_b[/tex]w.(strip depth).L(y)dy
where, L(y) is the length of the horizontal strip measured from left to right along the surface of the plate at level y,
F = [tex]\int\limits^a_b[/tex]w.(strip depth).L(y)dy
Now, if we set the coordinate axes such that the lower left vertex of the rectangle lies on the origin. Then the fluid force for the given rectangle is given by,
F = [tex]\int\limits^0_5[/tex]9800.(6-y).(1)dy
= 9800[tex]\int\limits^0_5[/tex](6-y)dy
= 171,500 N
Therefore, the fluid force for the given rectangle is 171,500 N.
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hoover dam on the colorado river is the highest dam in the united states at 221 m, with an output of 1300 mw. the dam generates electricity with water taken from a depth of 100 m and an average flow rate of 665 m3/s.
The pressure of the dam water is P = 8.47 ×[tex]10^8[/tex] W
Given : Length of the dam = 221 m
And the output = 1300 MW
The dam generates electricity and thus the length of that is 100 meters
Rate of flow = 665 m/s
P = Δ F / ΔT
Also pressure × Q = Power -- 1
Q = volume flow rate
To know the pressure
P = pgh
substitute this value in the above equation and we get
pgh × Q = P
1300 × 100 × 9.8 × 665 = P
this implies pressure = 847210000
that is P = 8.47 ×[tex]10^8[/tex] W
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If the Earth-Sun distance were doubled, the intensity of radiation from the Sun that reaches the Earth's surface would a. double. b. quadruple. c. drop to 12. d. drop to 14.
The option (d) drop to 1/4 is correct. i.e. The amount of radiation from the Sun that reaches the Earth's surface would be reduced to 1/4 if the Earth and Sun were two times further apart.
A planet half as far from the Sun as Earth would get four times as much solar radiation (5,472 W/m²), scorching it. Just one-fourth as much radiation (342 W/m²) would be needed to warm a planet twice as far from the Sun as Earth.The orbital period lengthens and the gravitational force weakens with a doubled distance from the sun.The gravitational force is inversely proportional to the square of the distance between the sun and earth.To know more about radiation
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What are the types of realistic fiction?.
The types of realistic fiction: are historical and contemporary fiction.
Practical fiction creates imaginary characters and conditions that depict our world and society. It focuses on themes of growing up and confronting non-public and social problems. This genre portrays characters coming to apprehend themselves and others.
Realistic Fiction is divided into two elements: ancient and modern-day fiction. ancient fiction takes place in a time far-flung enough to be taken into consideration records, as opposed to contemporary fiction which takes vicinity these days or within the recent beyond. sensible fiction is a style of testimonies in which the events are made up, but they may easily occur in actual existence. those styles of stories take place in acquainted, ordinary settings and have normal characters.
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the two masses in the figure are released from rest. after mass has fallen , it is moving with a speed of . mass has a mass of an mass has a mass of , and the pulley is frictionless. how much work is done during this time interval by the frictional force on block ?
Two masses m1=5 kg and m2=10 kg, connected by an inextensible string over a frictionless pulley, are moving as shown in the figure. The coefficient of friction of the horizontal surface is 0.15. The minimum weight m1 should be put on top of m2 to stop the motion seen in the image below.
From FBD of mass m1
we get t=5g
to stop the motion T≤μ(m2 +m)g
=>5g≤0.15(10+m)g
=>m≥23.3kg
so the minimum mass that can stop motion is 23.3kg.
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a camera takes a properly exposed photo at f/5.6 and 1/160 s. part a what shutter speed should be used if the lens is changed to f/4.0?
A camera takes a properly exposed photo at f/5.6 and 1/160 s. part a the shutter speed should be used if the lens is changed to f/4.0 is 1/500 s.
Generally speaking, the use of the same old rule of thumb is to make the shutter velocity same for your focal period whilst hand-preserving your digital digicam.
For example, in case you are capturing with a 200mm lens then you definitely need to preserve your shutter velocity at 1/2 hundred sec or above to keep away from any blur happening from digital digicam shake. The shutter velocity that ought to be used if the lens is modified to f/4.zero is : 1/500 s. The courting among the shutter velocity and the focal ratio is an inverse courting.
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a skateboarder is trying to skate horizontally off a building and jump over a pool as shown! the pool is 10.0m wide and the roof of the building is 12.0m above where he will land. neglect drag.
a)2.56s long will the skateboarder remain in the air.
b)The skateboarder need to barely clear the pool 9.77 m/s.
What is speed ?The speed at which an object's location changes in any dimension. The distance traveled in relation to the time it took to travel that distance is how speed is defined. Given that it just has a path and no amount, speed is still a scalar number.
Briefing:a)Width of the pool, d= 10 m
Height of the building, h = 12 m
h = v₀t + 1/2 gt²
h = 0 + 1/2 gt²
gt² = 2h
t = √2h/g
t = √ 2 * 12 / 9.8
t = 2.56s
b)The skateboarder's required beginning speed to clear the pool is calculated as follows:
v = d /t
v = 10 / 2.56
v = 9.77 m/s
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The complete question is -
A skateboarder is trying to skate horizontally off a building and jump over a pool as shown! The pool is 10.0m wide and the roof of the building is 12.0m above where he will land. Neglect drag.
a)How long will the skateboarder remain in the air?
b)With what initial speed (in given units) does the skateboarder need to barely clear the pool?
hubble's law states that question 8 options: a) more distant galaxies are younger b) the greater the distance to a galaxy, the fainter the galaxy appears c) the greater the distance to a galaxy, the greater is the galaxy's redshift d) most galaxies are found in clusters
The correct option regarding Hubble's Law is Option B : the greater the distance to a galaxy, the fainter the galaxy appears .
What is the Hubble's Law ?We may learn a lot about the nature of the cosmos from Hubble's law, which states essentially that a galaxy's velocity (or, as it is commonly displayed, its redshift) is precisely proportionate to its distance.
The relationship between distance and velocity should not exist if the cosmos is constant and unchanging.
Because the Hubble constant, H, is used to calculate the precise age of the universe, Hubble's law is regarded as being extremely significant. Additionally, it aids in the comprehension of dark energy and matter.
By displaying the distances that distant galaxies are traveling from us, it illustrates how the universe is expanding.
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What is the frequency of an electromagnetic wave with a wavelength of 200 m?.
A wavelength of 200 meters equates to a frequency of 1500 kHz.Assuming a sinusoidal wave moving at a fixed wave speed, wavelength is inversely proportional to frequency of the wave:
What wavelength is it?A waveform signal that is carried in space or down a wire has a wavelength, which is the separation between two identical places (next crests) in the consecutive cycles. This length is typically defined in wireless systems in meters (m), centimeters (cm), or millimeters (mm) (mm).
What is a wavelength's alternate name?You may find 16 alternate words for wavelength on this page, including spectra, frequency, absorption, mid-infrared, thz, brightness, long wavelength, 850 nm, 1064 nm, and visible light.
Calculations:
Where c = 3 000 000 m/s (3*10^6 m/s), then:
3000000200 = 15000= 15 kHz.
Where c = 300 000 000 m/s (3*10^8 m/s), then:
300000000200 = 1500000= 1.5 MHz.
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Suppose that the top plate of a parallel-plate capacitor has an electric potential of 0 V and the bottom plate has a potential of 500 V. There is a distance of 1.3 cm between the plates. a. What is the change in potential energy of a charge of +6 x 10-- C that is moved from the bottom plate to the top plate? b. What is the direction of the electrostatic force exerted on this charge when it is between the plates? c. What is the direction of the electric field between the plates? d. What is the magnitude of the electric field between the plates?
a. The change in potential energy is 30,000,000 Joules
b. The direction of the electrostatic force exerted on this charge is upward
c. the direction of the electric field between the plates is upward
d. The magnitude of the electric field is 38461.5
A. What is the change in potential energy?The formula is
PE = qΔv
where PE = potential energy
q = charge of 6 x 10⁴
Δv = 500
The potential energy is given as
PE = 500 x 6 x 10⁴
= 30,000,000 Joules
b. What is the direction of the electrostatic force exerted on this charge when it is between the plates?The higher potential plate (bottom) exerts force on the positive charge in the opposite direction to the lower potential plate (up). Thus, the electrostatic force acting on the charge when it is sandwiched between the plates is directed upward.
(c) The electric field is moving upward because it is moving from a higher to a lower potential.
d. E = v / d
= 500 / 0.013
= 38461.5
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a 48-kg bungee jumper has fallen far enough that her bungee cord is beginning to stretch and resist her downward motion. find the force (magnitude and direction) exerted on her by the bungee cord at an instant when her downward acceleration has a magnitude of 5.2 m/s2. ignore the effects of air resistance.
The force (magnitude and direction) exerted on her by the bungee cord at an instant when her downward acceleration has a magnitude of 5.2 m/s2 is 230.4 N .
The resultant force (F) for Newton's second law is equal to the mass (m) multiplied by the acceleration (a). There are two forces at work: the weight and the force of the bungee cord (Fb). They are moving in the same direction but in opposite directions, hence the resulting force will be their differences
M*g - Fb = M*a
As a result of the downward acceleration, it is -5.2 m/s2.
Fb - 48*10 = 48*(-5.2) (-5.2)
Fb = -249.6 + 480
Fb = 230.4 N
One of the most significant laws in all of physics is Newton's second law. F = ma,
where F (force) and a (acceleration) are both vector values, can be used to represent a body whose mass m is constant. A body is accelerated according to the equation if there is a net force acting on it.
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Light with wavelength 500 nm falls on a slit of width 10μm at an angle 30∘ to its normal. Find the angular position of the first minima located on both sides of the central Fraunhofer maximum : a) 33∘ and 27∘; b) 25∘ and 35∘; c) 36∘ and 24∘; d) 28∘ and 32∘
The angular position of the first minima located on both sides of the central Fraunhofer maximum : a) 33° and 27° is correct.
Normally, light with a wavelength of 5000 A° is incident on a slit with a width of 2.5× 10⁻⁴cm.The concept of diffraction is the foundation of the presented issue. The equation: yields the angular coordinates of the black fringes n, which are intercalated dark and bright fringes that are symmetric with regard to the center of the screen.
d × sinθ = n × λ
Where, n is the order of pattern minima, and θ is the angular separation.
n = 1 for first minima. In that case, angular separation is,
d × sinθ = λ
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Liquid X is known to have a lower surface tension and lower viscosity than Liquid Y. Use these facts to predict the result of each experiment in the table below, if you can. experiment predicted outcome 20.0 mL each of Liquid X and Liquid Y are poured through a funnel, and the times t and ly needed to pour each liquid through lx will be greater than ty tv will be less than t lx will be equal to ty It's impossible to predict whether [x or ty wil o y the funnel are measured be greater without more information. mx will be greater than my Wax-coated particles carefully put onto the surface of Liquid X or Liquid Y will stay on the surface, if the particles are small enough. 0 mX will be less than my mx will be equal to my The heaviest mass of particle mx and my that will stay on each liquid's surface without sinking are measured. It's impossible to predict whether mx or m,y will be greater without more information.
Previous question
The time taken by the liquid X to pour into the funnel will be less than the liquid Y.
There are two liquids,
Liquid X and Liquid Y, Liquid X will has a lower viscosity and surface tension than Liquid Y.
The surface tension of a compound is the force of attraction felt by the particles on the liquid surface because of the liquid particle beneath the partcles. While on the other hand, the viscosity of the compound is defined as ability of the liquid to avoid its flow.
Because, Liquid X has less surface tension and viscosity, then it will not avoid the flow in funnel and also the particles of funnel will be less attracted towards the particles of the liquid X,
So, the time taken by the liquid X to pour into the funnel will be less than Liquid Y.
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How do you solve ohm resistance?.
The required resistance is calculated from the formula R=V/I
Voltage is measured in volts current in amperes and resistance in ohms. A zero-ohm resistor is exactly what the term stands for. This is a single resistor made to have a resistance of zero ohms when measured. Zero ohm through-hole resistors often have a single black band indicating the value of the resistance.
The lower the impedance the more efficiently the electrical signal which is essentially music can pass through the speaker Power. A measure of how well a material blocks the flow of current induced by a voltage Resistance is measured in ohms. When electrons move through a conductor such as a metal wire an electric current flows.
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a daredevil motorcycle rider hires you to plan the details for a stunt in which she will fly her motorcycle over six school buses. assume the ride starts on flat ground. provide as much information as you can to help the rider successfully complete the stunt.
A daredevil motorcycle rider hires you to plan the details for a stunt in which she will fly her motorcycle over six school buses. He intends to ride off a horizontal platform at 40 m/s, then land on a ramp sloping down at 20°. Then the horizontal distance of the edge of platform from front edge of ramp is 59.6 m. The vertical distance of the edge of the platform from front edge of ramp is 10.9 m.
The direction of motorcycle launching speed on the ramp is
tan θ = gt / v
tan 20° = 9.8 * t/ 40
t = 1.49 s
The expression to calculate horizontal distance of the edge of platform from front edge of ramp is d = v * t
d = 40 * 1.49 = 59.6 m
The expression to calculate vertical distance of the edge of platform from front edge of ramp is h = 1/2 g t²
h = 1/2 * 9.8 * 1.49 = 10.9 m
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Do paper plates absorb heat?.
Thin paper plates are more likely to absorb heat and could potentially catch fire.
Heat is the transfer of kinetic energy from one medium or item to any other, or from a power source to a medium or item. Such heat transfer can arise in 3 methods: radiation, conduction, and convection.
Heat is used to make things heat, to boil water and fry eggs, and to melt metallic to construct cars. Warmness is used to generate electricity at a thermal strength plant for our everyday lives.
Here are just a few of your many picks for heating strength sources: natural gas, propane (LP), oil, coal, wood, electricity, warmth pumps, floor source warmth pumps, and solar energy.
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the part of the electromagnetic spectrum most absorbed by water is group of answer choices infrared. lower frequencies in the visible. higher frequencies in the visible. ultraviolet. middle frequencies in the visible.
Red light is more easily absorbed by water than other visible wavelengths and has a little bit more energy than infrared light that is invisible to the human eye.
What frequency range of the electromagnetic spectrum does water absorb most of?Red light is more easily absorbed by water than other visible wavelengths and has a little bit more energy than infrared light that is invisible to the human eye. Red fish appear almost black at 20 meters because of this. Compared to light with shorter wavelengths, longer wavelength light is absorbed more quickly.At normal temperature and pressure, atmospheric water vapor causes absorption that extends from about 200 cm-1 (50 m) to longer wavelengths approaching the microwave area in the far-infrared spectrum.To learn more about far-infrared spectrum refer to:
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