Answer:
23 m/s
Explanation:
The net external force on the propeller is 17N
The airplane is 0.75 kg
Therefore the acceleration of the plane can be calculated as follows
= 17/0.75
= 23 m/s
Hence the acceleration of the airplane is 23 m/s
Answer:

Explanation:
Work is given by the equation
where
is force and
is displacement.
Displacement is defined as change in position. In this case, the box moves from 5m to 20m. Its displacement is
.
The force acting on the box is the force of gravity, given as
.
Therefore, the total work done is:
(two significant figures).
Answer:
if the frequency of the wave if tripled then period of wave gets tripled
Answer:
i Believe the correct answer is "An open circuit being changed into a closed circuit"
Explanation: