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Q3 a) 1.664 x 10 6 J b) 2.77 x 10 6 J... View the full answer

IMG_20200212_123611.jpg

work done = mxgx ( 2 )
= 7 8 6 * 4 x 3 5 2 x 6 7 x 9 . 8 x 2
as mass of 2
" "past = 7 8 6 X 4 X 3X 2 X6
work done = 7.394 x 105 J
ATONTTE h = ( 2+2 ) = 4m
so work done = 7 8 6 x 4 x 3 x 2...

IMG_20200212_123619.jpg

work done = mgh
top of tank
I
6m
COM
so considering com
motion .
h= 3m
and work done = m x 9. 8x 3
NO
m = e x V = 7 8 6 x 4 x 3X6
work done = 16 63 804. 8J
work done = 1. 664 x16 6 J
When 2 m above...

IMG_20200212_123640.jpg

each bit of chain that is lifted to top of
building can secured, there. say by putting
link over some kind of beg
W =
( F. dz
F =
( 7 2 - 2 ) X 27 / X J .8
7 2
mass of the past that is hanging.
Do...

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Other Answers

Questions are solved using the formula of potential energy .... View the full answer

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Height of centre of mass
of hanging length from top is
h2 = 64 = 32 m
h2
Final potential energy is-
U , = _ m , xg x hz
mass of hanging part
72m has mass 23 up
6am has mass 23 x648
My = 20. 94 ng...

9FCAD3C5-2871-4E95-8B2E-C17975462DAE.jpeg

( 4) mass of 2rd
of liquid
is
My =
xxd = 12x6
- x 786 = ( 2 4 x 7 86 ) 2 18869
height of 2rd
rd of liquid
from bottom = 2 x6 = am
C.MY
2 m
IT
position of centre of
mass of 2 01
of liquid
from top...

FE3AFD2F-EBFA-4D36-8C36-B2FD6DBC5B00.jpeg

3. (3 points) A rectangular tank that is 4 meters long, 3
meters wide and 6 meters deep is filled with a rubbing alcohol
that has density 786 kilograms per cubic meter. In each part
below, assume...

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