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Alexandra [31]
3 years ago
9

The transfer of energy through matter by the direct contact of particles is called __________.

Physics
1 answer:
kaheart [24]3 years ago
3 0
The transfer of energy through matter by the direct contact of particles is called conduction
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Answer:

Explanation:

Since the block is at rest in an elevated position, we can assume that it only has potential energy.

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Plug in known variables....

U=4kg*9.8m/s^2*20m

U=784 joules of potential energy or letter A.

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3 years ago
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Number 3,4, 6, and 8
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1. When the object is waiting to be released, it is storing a lot of potential energy. When it is released, the potential energy that was once stored is converted into kinetic energy.

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3 years ago
In a collision, a 25.0 kg mass moving at 3.0 m/s transfers all of its momentum to a 5.0 kg mass.
nadezda [96]

Answer:

Explanation:

The momentum of the 25 kg mass is

p=mv

p=25kg*3m/s= 75kg*m/s

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v=\dfrac{75}{5}

\boxed{v=15m/s}

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