<u>Statement</u><u>:</u>
A body is under the action of a force F such that the force-displacement graph of the body is semicircle as shown above. The work done on the body by the force in moving through 24 meters.
<u>To </u><u>find </u><u>out</u><u>:</u>
The work done by the body.
<u>Solution</u><u>:</u>
- Here force is F and let us consider the displacement as s.
- We know, work done = Fs.
- Here the area under the curve is Fs, i.e., work done.
- We know, area of a semicircle = where r is the radius.
- Here, radius (r) = 24 m
- Therefore, work done
<u>Answer</u><u>:</u>
The work done is 288π m².
Hope you could understand.
If you have any query, feel free to ask.
Answer:
0.0804 m / h
Explanation:
r = 1 m, dr / dt = 8 cm/h = 0.08 m/h
the volume of sphere is given by
V = 4/3 x π x r^3
Differentiate with respect to r.
dV / dr = 4 / 3 x π x 3 r^2 x dr/dt
dV/dt = 4 x π x r^2 x dr/dt
dV/dt = 4 x 3.14 x 1 x 1 x 0.08
dv/dt = 0.0804 m / h
Lahars can also be formed when high-volume or long-duration rainfall occurs during or after an eruption. It can change the shape of a mountain by blowing parts of it away, but volcanic eruptions can also build up the land around a volcano when lava flows out and hardens on the surface. The surface of the Earth can crack and shift during an earthquake above the point where the crust moves.
If the amount of electrical energy is 50 Joules before the conversions, then it would be 50 Joules after the conversion.
According to law of conservation of energy, we cannot create or destroy energy so it remains constant
Hope this helps!