Answer:
There are many topics related to physics such as :
Kinematics
Dynamics
Light
Sound
Answer:
b) the alpha particles were found to be attracted to the nucleus
Explanation:
First I’ll show you this standard derivation using conservation of energy:
Pi=Kf,
mgh = 1/2 m v^2,
V = sqrt(2gh)
P is initial potential energy, K is final kinetic, m is mass of object, h is height from stopping point, v is final velocity.
In this case the height difference for the hill is 2-0.5=1.5 m. Thus the ball is moving at sqrt(2(10)(1.5))=
5.477 m/s.
The answer for that would be C
Eisenhower started the NASA project to develop technology for military application.
