2 years ago

At which temperature does the molecules of an object stop moving?

Physics

1 answer:

PilotLPTM [1.2K]2 years ago

7 0

Answer:

at the melting point and boiling point

Explanation:

the heat abdorbed is used to break down the forces holding the particles together to allow it to change its state

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3 years ago

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Monochromatic light of 605 nm falls on a single slit, which is located 85 cm from a

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Answer:

mhm

Explanation:

The answer is c 00.095

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3 years ago

A golf ball with m = 46 g is struck a blow which makes an angle of 45o with the horizontal. The drive lands 200 m away on a flat

AfilCa [17]

Answer:

Average force will be equal to 2908.57 N

Explanation:

We have given mass of the ball m = 46 gram = 0.046 kg

Let velocity at which ball is projected is u m/sec

Angle at which ball is projected $\Theta =45^{\circ}$

Range of the ball is given R = 200 m

Range is equal to $R=\frac{u^2sin2\Theta }{g}$

$200=\frac{u^2sin(90^{\circ})}{9.8}$

$u^2=1960$

u = 44.27 m/sec

Change in momentum of the ball is equal to $P=mu=0.46\times 44.27=20.36kgm/sec$

Time of impact is given $dt=7ms=0.007sec$

Force is equal to rate of change of momentum

So force $F=\frac{dP}{dt}=\frac{20.36}{0.007}=2908.57N$

Force will be equal to 2908.57 N

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2 years ago

When I rub my hands together they feel warm. I am converting____

Elena L [17]

Answer:

thermal

Explanation:

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2 years ago

Pressure depends upon the amount of force on an object and the size of the area the force pushes or pulls on.

Georgia [21]

The given statement is true.

Pressure is defined as force per unit area.

In mathematical terms,

Pressure = force/area

pressure is directly proportional to the force on the object

pressure is indirectly proportional to the area on which force acts

Hence the given statement is true

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1 year ago