Here is your answer
REASON :
Given,
t= 20 secs
F= 20 N
s (displacement)= 5m
Now,
Power= \frac{Work done}{time}
P= W/t ...... (i)
W= F×s×cos(theta)
W= 20×5 × 1 (theta is 0 degree; so cos0= 1)
W= 100 J
Hence,
P= 100/20 (from eq. i)
P= 5 watts
HOPE IT IS USEFUL
The efficiency of the machine is
output energy / input energy
= output power / input power
= 3,761 watts / 4,000 watts
= (3,761 / 4,000)
= 0.94025
= 94.025 %
The answer is axial precession. Axial precession refers to
the very slow motion of the Earth’s axis, which almost requires twenty-six
thousand (26,000) years to complete a full rotation. This Axial Precession is
caused by the effects of gravitational pull from the Sun and the Moon towards
the Earth.
Answer:
The gravitational field is really a curving of space and time. The stronger the gravity, the more spacetime curves, and the slower time itself proceeds.Time itself is slowing down and speeding up because of the relativistic way in which mass warps space and time.
