They'll vibrate at their characteristic resonant frequency. That depends on the material the object is made of and its shape.
Answer:
what help you need?????????
Data:
h = 2m
m = 45 Kg
PE = ? (Joule)
Adopting, gravity (g) ≈ <span>9,8 m/s²
</span>
Formula:

Solving:



Answer:
<span>
The sled's potential energy is 882 Joules</span>
Have everything in control and in order and discuss about different issues.
No, it will only melt if the temperature is lowered. If you compress it, it will change the shape, but it will not change the state it is in (i.e. solid).