Answer:
Explanation:
the weight of the telescope decreases because the moon attract the body with less force as compared to earth due to less gravity as compared to earth
Answer:
Explanation:
Given
mass of each railroad is M
first railroad is moving with velocity
and other two's with 
conserving Momentum

where v_f is the final velocity of combined system
(b)Initial Kinetic Energy


Final Kinetic Energy

Loss in Kinetic Energy


They are located in Electron Clouds.
energy associate with position or shape