Question

will you please tell me the answer of this question​

Answer 1

Answer:

khushu ye raha aapka ans

Explanation:

isme order wise Maine attach kar rakha hai answer

Answer 2

Answer:

a) W

=

t

MgH

= power

60

M(10)(10)

=2

M=1.2Kg

b) Given that,

Power =1200W=1.2kWh

Time = 30 min / day × 30 days =0.5h×30= 15 h

Energy =Power×Time=1.2×15= 18kWh.

c) Given That The Ball Is Dropped From A Height,h

1

=10m

Potential Energy At h

1

=mgh

1

Therefore The Potential Energy At h

1

=m×10×10=100mJ

On striking the ground level, the ball looses 40%of its initial energy:

i.e.

100

40

×100mJ=40mJ

The energy left on striking the ground=100mJ−40mJ=60mJ

So the final energy of the ball, mgh

2

=60mJ

i.eh

2

=

10

60

=6m

Hence the ball will bounce back to a height of 6m.

Explanation:

hope it may help you

please mark me as brainlist