Describe the energy of the skier at location W.*

At point W, potential energy is greatest and kinetic energy is least.
At point W, potential energy is least and kinetic energy is greatest.
At point W, potential energy and kinetic energy are the same.

Answer:

Explanation:

According to Newton's law of gravitation , all objects should take same time to fall from same height , but it does not happen when we see a paper , a thermocol and a plastic paper to fall .

It happens due to air resistance . In case of paper , this is most pronounced , so it falls slowest . In case of plastic paper , the resistance is least so it falls fastest .

If we squeeze the piece of paper to make a lump so that it does not remain flat , it will fall the fastest , because in this case the air resistance on it becomes the least .

Answer:

what's the question

Explanation:

I don't understand the question

Answer:

Explanation:

Simple harmonic motion is the motion that involves the cyclic and periodic motion of an object about a central point or equilibrium position, due to the effect of a restoring force, such that the object has the same maximum displacement during its motion on either side of the equilibrium point

(a) The parameters of the body moving with SHM are;

The amplitude of the motion of the body, a = 10 cm

The frequency of the complete cycles of the motion of the body, f = 100 Hz

The period of the oscillation, 'T', is the time it takes o complete one cycle

T = 1/f

∴ T = 1/100 Hz = 0.01 seconds

(b) The acceleration, a = -A·ω²·sin(ω·t)

Where;

One complete oscillation is given as ω·t = 2·π

Therefore at either end at the maximum displacement, which is at either end of the equilibrium position is reached at half a complete cycle, or ω·t = 2·π/2 = π

At the maximum displacement a = -A·ω²·sin(ω·t) = A·ω²·sin(π) = 0

Therefore, we have;

The acceleration, of the body at the maximum displacement, a = 0 m/s².

Answer:

Show the wave

Explanation:

Answer:

The number of complete wavelengths in a given unit of time is called frequency (f). As a wavelength increases in size, it's frequency and energy (E) decrease. From these equations you may realize that as the frequency increases, the wavelength gets shorter. As the frequency decreases, the wavelength get longer.

Explanation:

I majored in Physics

Answer:

The work completed is 73.5 Joule

Explanation:

Mechanical Work

Mechanical work is the amount of energy transferred by a force that moves an object by a certain distance. It's a scalar quantity, with SI units of joules.

Being  the force and  the displacement the work is calculated as:

W=F.s

The box of m=5 kg is lifted by a distance of s=1.5 m. The force applied to lift the box is equal to the weight of the box, assuming it's lifted at a constant speed, thus:

F = mg = 5 * 9,8 = 49 N

The work is:

W = 49 N * 1.5 m

W = 73.5 J

The work completed is 73.5 Joule

Answer:

C) more

Explanation:

because the amplitude of a wave is the maximum displacement of a particle from its rest position, thus, the more energy there is, the higher the particle is displaced

hope this helps, if not, please report it so that someone else can try it

The greater a wave's amplitude, the more energy the wave carries. The correct option is C.

Due to the fact that the amplitude of a wave represents the maximum displacement of a particle from its rest position, the higher the displacement of the particle, the more energy there is.

The maximum displacement or distance made by a point on a vibrating body or wave relative to its equilibrium location is known as the amplitude in physics.

The wave's deviation from its mean position is referred to as amplitude. It measures the vertical separation of the peak (also known as the crest or trough) from the mean position. The distance between the center line (or the still position) and the top or bottom of a wave's crest or trough is known as the amplitude.

Therefore, the correct option is C: more.

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Answer:

0.5

Explanation:

From the question given above, the following data were obtained:

Force (F) = 50 N

Weight (W) = 100 N

Coefficient of static friction (μ) =.?

The coefficients of static friction (μ) is simply defined as the ratio of force (F) to the normal reaction (N). Mathematically, it can be expressed as:

μ = F / N

With the above formula, we can obtain the coefficient of static friction as follow:

Force (F) = 50 N

Weight (W) = 100 N

Coefficient of static friction (μ) =.?

μ = F / W

μ = 50 / 100

μ = 0.5

Thus, coefficient of static friction is 0.5

Answer:

A) Blackbody radiation

Explanation:

i just took the test and this was my answer

Answer:

constructive interference

Explanation:

just did it

Answer:4s^-1

Explanation:Tangential Acceleration=v^2/r=(20)²/100=400/100

Answer:it will take 10 hours

Explanation: The way we get this answer is if the boat travels 200 miles at 20 mph that means that every 20 miles the boat traveled an hour would pass. Using this we can see that 20 fits into 200, 10 times, meaning that the time it would take to travel would be 10 hours.

The time it will take to travel 200 miles is 10 seconds

The calculation can be done as follows

= 200/20

= 10 seconds

Hence the amount of time it will take the speed boat to travel 200 miles is 10 seconds

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Answer:

13.4 m/s^2

Explanation:

40 divided by 3 equals 13.3 repeating.

Answer:

[tex]36 g/cm^{3}[/tex]

Explanation:

In order to find the density, the problem says we need to find the volume first.

Since we know that the sample of gold is a perfect cube, we know that the side lengths will all be the same. Since all the side lengths will be 3, we can take that value and cube it to find the volume.

[tex]3^{3} = 27[/tex]

Now that we know the volume is 27 cm³, we can solve find the density.

[tex]Density = \frac{Mass}{Volume}[/tex]

[tex]Density = \frac{972g}{27cm^{3} } = 36 g/cm^{3}[/tex]

Therefore, the density of the sample is 36 g/cm³.

Responder:

Fy = 2474,8737

Fx = 2474,8737

Explicación:

Dado que :

Dado:

Fuerza, F = 3500 N

Ángulo formado con la horizontal, θ, = 45 °

Los componentes de una fuerza se pueden descomponer en componentes verticales y horizontales.

El componente vertical Fy; y

El componente horizontal Fx

Fy = Fuerza * sinθ

Fy = 3500 * sin45 °

Fy = 2474,8737

El componente horizontal:

Fx = Fuerza * cosθ

Fy = 3500 * cos45 °

Fy = 2474,8737

Answer:

His first law states that every object will remain at rest or in uniform motion in a straight line unless compelled to change its state by the action of an external force. This is normally taken as the definition of inertia.

Explanation:

Answer:

It states that: If a body is at rest or moving at a constant speed in a straight line, it will remain at rest or keep moving in a straight line at constant speed unless it acted upon by a force

Explanation:

Answer:

Starting from the beginning.

There is a radio signal that is received by the radio.

The radio interprets the signal and produces a current in response to it.

That current goes to a membrane that oscillates producing sound, the oscillation of the membrane is the first mechanical energy event here.

These oscillations can travel in material mediums, for example, the air. Then there is a production of waves (soundwaves) that travel in the air (second event).

Those waves now hit the wall that separates you and your neighbor, as the wall is made of a material, the soundwaves can travel through it, but they will be dispersed (a part of the waves rebounds on the wall, and another part is dissipated as the wave travels through the wall), there is also a transmitted part of the wave, that is now in your house. (this change of medium will be the third event). Now only the lower frequencies survive, this is why the sound is "muffled".

Those remaining frequencies now travel in your house, and when they reach your ear, your ear sends a signal to your brain and your brain interprets them as sound. The wave interacting with your ear will be the fourth and last mechanical energy event.

Answer:

0

Explanation:

the forces gets cancelled off. hence when applying F=Ma, F=0 therefore a=o

The acceleration of the cart is 0m/s². Option A is correct.

According to Newton's second law of motion:

[tex]\sum F=ma[/tex]

m is the mass of the object

a is the acceleration

If a force of 25 newtons east and a force of 25  newtons, then the sum of force is expressed as:

[tex]\sum F = 25 - 25 =0N[/tex]

Get the acceleration

[tex]a=\frac{\sum F}{m} \\a=\frac{0}{5} \\a=0m/s^2[/tex]

Hence the acceleration of the cart is 0m/s²

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Answer:

I am extremely sorry, but I cannot answer your questions, because there aren't any.

Explanation:

I don't see any questions, or else my eyes are not working properly.

Answer:

Yes

Explanation:

It is possible for sedimentary rocks to be converted to igneous rocks. Under conditions of high temperature and pressure, sedimentary rocks can be broken down into igneous rock by melting this rock type.

When the rock is broken down, it forms melt which when cooled and solidifies will form igneous rocks.

Sedimentary rocks are formed from the breaking down of pre-existing rocks through the action of weathering, erosion and sediment transportation. Within a basin, the sediments are compacted and lithified.

When this is subjected to intense pressure and temperature, the rock hardens and might further break down to melt.

Answer:

3.06m/s² to the east

Explanation:

Given parameters:

Mass of car = 2.5 x 10³kg

Force acting on the car  = 7.65 x 10³N

Unknown:

Acceleration of the car  = ?

Solution:

From Newton's second law of motion:

      Force  = mass x acceleration

   Acceleration  = [tex]\frac{Force }{mass}[/tex]   = [tex]\frac{7.65 x 10^{3} }{2.5 x 10^{3} }[/tex]    = 3.06m/s² to the east

Answer:

Explanation:

Answer:

Oxygen and nutrients from the mother's blood are transferred across the placenta to the fetus through the umbilical cord. This enriched blood flows through the umbilical vein toward the baby's liver. There it moves through a shunt called the ductus venosus. This allows some of the blood to go to the liver.

Answer:

Since the Kinetic energy forumla is K=(1/2)mv^2 if you double the mass the kinetic energy of the object also doubles. for example if your object has a mass of 3 and a velocity of 2 then its K.E. equals 6, if you then double its mass the kinetic energy now equals 12. A good analogy would be something like a bowling ball, if you throw a 12 pound ball at the same speed as a 6 pound ball, the force from the 12 pound ball would be exactly double to the 6 pound ball.

Explanation:

man, english isnt my strong suit. you have all you need here to make a A level answer just fix grammar as needed. I cant imagine this is a high level physics class so in reality just make it so it would be plagirsm detected.

Also a side note this may help you in the future. if u double its velocity its K.E. actually quadruples since V is squared.  

Answer:

A scientist who studies thermodynamics might experiment with the instant ice packs where you have to pop a bag on the inside to create a chemical reaction to make it cold.

Answer:

2.6

Explanation:

7 times

Complete question :

A car accident my rolls off a cliff as it leaves the cliff it has a horizontal velocity of 13 ms it hits the ground 60 m from the shoreline calculate the height of the cliff

Answer:

104.59 m

Explanation:

Given that:

Horizontal Velocity = 13 m/s

Horizontal distance = 60 m

To obtain the height of the cliff :

We use the Relation :

S = ut + 0.5at²

t = time ; u = initial velocity ; S = height

To obtain t ;

Speed = distance / time

Horizontal distance / speed = time

Time = 60 / 13

Time = 4.62 seconds

The height of cliff :

u = 0

Hence ;

S = ut + 0.5at²

S = 0 + 0.5(9.8) * 4.62^2

S = 104.58756

Height of cliff = 104.59 m

Question:

1) A tourist accidentally drops a camera from a 50.0 m high bridge. What is the speed of the camera as it hits the water? *

Answer:

28.0 m/s