Answer:
Therefore, Static friction is the type of kinetic friction that is difficult to overcome.
Explanation:
Static friction is the frictional force acting between two surfaces which are attempting to move, but are not moving.
Kinetic friction is the frictional force acting between two surfaces which are in motion against each other.
The work done by the engine is equal to the gravitational potential energy (GPE) put into it. GPE = mgh
GPE = Work = 1200·9.81·13 = 153,036J
The answer is A. voice uses a wider range of pitch and volume as compared to speaking
Answer:
The force between two charges and the distance separating them.
Explanation:
Answer:
3 m/s
Explanation:
We'll begin by calculating the change in displacement of the jogger. This can be obtained as follow:
Initial displacement (d₁) = 4 m
Final displacement (d₂) = 16 m
Change in displacement (Δd) =?
Δd = d₂ – d₁
Δd = 16 – 4
Δd = 12 m
Finally, we shall determine the determine the average velocity. This can be obtained as follow:
Change in displacement (Δd) = 12 m
Time (t) = 4 s
Velocity (v) =?
v = Δd / t
v = 12 / 4
v = 3 m/s
Thus, the average velocity of the jogger is 3 m/s