Question

hello brainly people !
got a doubt , can you pls help me with this sum , it's so hard for me , pls , if you know pls tell me , i will give you a brainliest Mark for sure , for sure means pakka I will give ......

ANWER THE ABOVE TWO QUESTIONS PLS PLS PLZ 6 and 7 pls

Answer 1

given

p=3kw

t=10hr

we know that

p=w/t=j/s=e/t

now

e=pt

e=3*10

e=30kwhr

now we know that

1w=1j/s and 1kw=1000w. 1hr=3600s

30kwhr=30000*3600ws

30kwhr=108*1000000j

2)

given

h=25m

t=5s

raised water =50l

row=1000kgper m cube

g=10n per kg

now

density = m/v

m=density*v

m=1000*50*50*50

f=m*a=mg

f=1250000