Answer:
work done = ( force × displacement)
(a)The force acting on the block is it's self weight and displacement is equal to height of the tower.
work done by gravity = (250 × 10) = 2500 joule
(b) The work done by gravity 2500 joule is transferred to the object in the form of it's kinetic energy.
Answer:
d) 1000 times
Explanation:
As we know that difference of sound level is given as
so here we need to find the ratio of two intensity
it is given as
now we have
so it is
d) 1000 times
Answer:
750W
Explanation:
40×10= 400N
work done= force × distance
=400 × 75
=30000 J
Power= work done/ time
= 30000 ÷ 40
= 750 W
Answer:
Its simple! B The ball accelerates upward!♡♡
B because all you do is divide 16 and 8 to find your answer
