The heat and energy of coal burning is more easier and more efficient to turn into electricity than any method using renewable resources.
That's true.
And I'll go ya a better one:
If the object is moving or not moving, at a constant or changing speed, in a straight or curvy line, and the forces on it do not cancel out and add up to zero, the object will accelerate.
Answer:
If you increase either mass or velocity, the momentum of the object increases proportionally.
Answer:
Explanation:
We shall apply law of conservation of momentum .
total Initial momentum =
7.5 x 8.85 = 66.375 kg m / s
total mass = 7.5 + 61.5 = 69 kg , common velocity of ball and performer be v
Total momentum = 69 v
69 v = 66.375
v = 66.375 / 69
= .962 m /s .
Answer:896 N
Explanation:
Given
mass of bullet 
Length of barrel 
final velocity 
initial velocity 
Work done by all the forces is equal to change in kinetic Energy



