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Answer:
Substance that is 90 degrees will lose energy and the substance that is 50 degrees will gain energy
Explanation:
because that is how energy work duhhhhh
Q.1
Answer . Momentum = mass x velocity
Momentum/mass = velocity
5/0.8 = velocity
6.25 m/s = velocity
Q.2
Answer . F = ma => a = f/m => a = 7/3.2 => a = 2.1875m/s²
Fluids are liquid or gases
different particles make up fluids and are constantly bouncing in a high random motion
Answer:

Explanation:
Moment of inertia of given shell
where
M represent sphere mass
R -sphere radius
we know linear speed is given as 
translational 
rotational 
total kinetic energy will be


fraction of rotaional to total K.E
