D. The equation for Velocity is v=d/t. Given the distance and time spent, velocity can be determined.
The ones we call "gamma rays" do.
Answer:
v = 2.348 m/s
Explanation:
Let:
h be the height of the child above the swing's low point,
v be the speed at the low point.
When the ropes make angle 3
25 deg. with the vertical:
h = 3.00(1 - cos(25)).
Equating potential energy at the high point to kinetic energy at the low point:
29.0 * 9.81 * 3.00(1 - cos(25)) = 29.0v^2 / 2
79.96 =29.0v^2 / 2
v = 2.348 m/s
Answer:
B) Lengths will appear shorter and time will appear to pass faster.
Explanation:
This is in line with the laws of relativity.