If it takes 726 W of power to move a mass 36 m and 14 seconds what is the mass

Answers

Answer 1

Answer: From that information, I can tell that the force pushing on the mass
averaged (282 and 1/3) newtons during those 24 seconds.

But the information doesn't nail down what the mass must be.
I think it would if we only knew something about the friction.
Either tell us how much friction there is, or tell us that there's
none, and I think I could find the mass.

Answer 2

Answer: power = work / time
work = force * displacement
force = mass * gravity

so:

power = (mass * gravity * displacement) / time
726 = (mass * 9.81 * 36 ) / 14
726 * 14 = mass * 9.81 * 36
10164 = mass * 353.16
mass = 10164 / 353.16

mass = 28.78 kg

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During the refrigeration cycle, the refrigerant absorbs and releases thermal energy by vaporizing and condensing.A.) True
B.) False

Answers

True.... the refrigerant is superheated from the end of the evaporator, through the compressor, up to the beginning of the condenser

gas stored in a tank at 273 k has a pressure of 50kpa. what happens to the volume when the pressure is decrease due to the added pressure

Answers

I can't think of any way that pressure can be decreased due to added pressure.

Be that as it may, and it certainly still is ...

No matter what you do to the pressure or the temperature of
the gas in that tank, the volume doesn't change. Any sample
of gas always expands to fill the container in which it's confined.
Its volume doesn't change until you either transfer it to another
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pulls a wagon a distance of 32 meters the handle is above an angle of 20 degrees above horizontal if you pull on it with a force of 27 N what work is it

Answers

Hi there!

When finding work (J) given force (N), we use the equation:

W = FdcosФ <-- Only take into account the force in the direction of motion

Plug in the given values:

W = 27(32)cos(20) = 811.89 J

$\sf{work~done=811.89~J }$

Explanation:

Here,

Giventhat,

pulls a wagon a distance of 32 meters the handle is above an angle of 20 degrees above horizontal if you pull on it with a force of 27 N

Tofind,

The total work done

Aswe know that,

${\boxed{\sf{W=f.d.cos\theta }}}$

Accordingtothe question,

$W=27(32)cos{20}\n\nw=811.89J$

Which of these types of images is not possible with a diverging mirror? A) an image that is smaller than the object b)a inverted image c)a virtual image d)an image

Answers

Taking a shot in the dark here as i mostly deal with atomic structure and the fact i haven't handled a diverging mirror ut would it be a virtual image because that needs parallel normal lines which cannot occur

Sound travels fastest in _____.

Answers

Answer:

Sound travels fastest in solids

Explanation:

Sound is a type of mechanical waves. Mechanical waves are produced by the oscillations of the particles in the medium the wave is travelling through.

The speed of a mechanical wave depends on the density of the medium: the higher the density, the higher the speed. This is because in a medium with higher density, atoms/molecules are closer together, so they collide more frequently and therefore the wave can be transmitted faster and more efficiently.

Since solids have higher density than liquids and gases, this also means that mechanical waves (so, sound as well) travel faster in solids than liquids or gases.

Sound travels fastest in solids,than liquids, and faster in liquids, than in gases.

The phase of the moon you see depends on what?

Answers

How much of the sunlit side of the moon is facing the Earth.

-- The angle in the sky between the sun and the moon. (The angle
you have to turn your eyes from the sun in order to see the moon.)

-- How long it has been since the last New Moon.

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