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tatuchka [14]
3 years ago
12

Which car has the most kinetic energy?

Physics
1 answer:
Andru [333]3 years ago
8 0
50kg driving at 30kph because it’s the heaviest yet fastest!
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A 2.43ug particle moves at 1.97 x 108 m/s. What is its momentum?
Ira Lisetskai [31]

Answer:

0.48 kgm/s

Explanation:

m = mass of the particle = 2.43 μg = 2.43 x 10⁻⁶ x 10⁻³ kg = 2.43 x 10⁻⁹ kg

v  = velocity of the particle = 1.97 x 10⁸ m/s

p = momentum of the particle

momentum of the particle is given as

p = m v

inserting the values

p = (2.43\times 10^{-9})(1.97\times 10^{8})

p = 0.48 kgm/s

4 0
3 years ago
Which property allows objects that do not produce their own light
KatRina [158]

Answer:

Reflection

Explanation:

As light is scattered on items which do not generate  illumination, they reflect it. This is attributed to the fact that light reflects off of themselves. The moon, for example, absorbs sunlight such that it can be seen at night.

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3 years ago
The ability of a muscle group to exert sub-maximal forces against a resistance over numerous contractions is called A. muscle en
Delicious77 [7]
The answer is:
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8 0
3 years ago
Which planet has the most gravity and why
djyliett [7]

heya mate

the planet Jupiter has most gravity due to its size

7 0
3 years ago
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_____ is the transfer of thermal energy between two bodies which are at different temperatures. The si unit for this is the joul
ss7ja [257]

Answer:

Heat

Explanation:

The thermal energy is usually defined as a heat energy that occurs due to the increase in temperature. Due to this increasing temperature, the atoms, as well as the molecules, start to migrate at a much faster rate and rapid collisions occur with one another.

This temperature change that is involved in this process can be measured.

Thus, in thermal energy, heat (heat energy) is transferred from one body to another at different distinct temperatures.

The SI unit of heat is Joule.

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3 years ago
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