<u>Answer:</u>
Option (a)
<u>Explanation :</u>
A stage hand starts sliding a large piece of stage scenery originally at rest by pulling it horizontally with a force of 176 N.
Hence Force applied 
Force on piece of scenery 



µk = 
= 
=
=0.36
coefficient of static friction is 0.36
use Newton's gravitational law and 2nd law .....
Answer:
Gamma rays
Explanation:
Have the highest energies. The shortest wavelengths, and the highest frequencies.