Speed = distance/time
speed= 122÷27=4.52m/s (3sf)
Answer:
I would have to say the answer is D
Explanation:
because the angle is being changed using the ray box.
by the wind and air flow in the wind
answer:
yes
explanation:
At a separation of the surface of Earth (r=6400km) gravity wants pull the test mass closer and closer. ... So the work done by gravity is NEGATIVE. The gravitational potential energy is negative because us trying to do the opposite of what gravity wants needs positive energy.
Answer:
1.171
Explanation:
if n₁sinΘ₁=n₂sinΘ₂, then n₂=n₁sinΘ₁ / sinΘ₂;
