Answer:
The moon is farther away from the earths gravitational pull :)
Explanation:
The answer is D: all electromagnetic waves can travel in a vacuum
Answer:
Nuclear fusion
Explanation:
This is because main sequence of star is powered by fusion of hydrogen to helium atoms together and this process releases energy. The energy released when the gas collapse into a protostar make the center of the protostar to be extremely hot. When the core becomes very hot, nuclear fusion can start.
Answer:
a) was the angular acceleration of the grinding wheel.
b)800 revolutions has made by the wheel during the time it was coming to rest
Explanation:
Initial angular velocity of grinding wheel = 20.0 rps
Final angular velocity of grinding wheel = 0.0 rps
Time taken by wheel to come to rest = t = 80.0 s
a) Angular acceleration of the wheel =
revolutions per second square
was the angular acceleration of the grinding wheel.
b) Initial angular velocity of grinding wheel = 20.0 rps
Number of revolution before coming to rest =
Number of revolution =
800 revolutions has made by the wheel during the time it was coming to rest