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Select the correct answer from the item bank to fill in the blanks to complete the following paragraph.

K=1/2mv^2
200 joules
U=mgh
heat
100 joules

1. A 2-kg object is dropped from a height of 10 meters. The potential energy can be calculated by using the formula ___
2. The potential energy is calculated as ___ (use g=10m/s^2 for your calculation)
3. If the object strikes the ground with a speed of 5 m/s, then using the formula ___, the kinetic energy is 100 joules.
4. This requires that ___ of energy is turned into
5. ___ and eventually released to its surroundings.

Sagot :

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