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Travka [436]
3 years ago
13

Which of the following is a unit of volume of solids?

Physics
2 answers:
Verizon [17]3 years ago
6 0

Answer:

Cubic meters is the unit of volume.

Alla [95]3 years ago
4 0

Answer:

Cubic meters is the unit of volume.

Explanation:

Volume :

Volume is the multiplication of height, width and length of the solids.

In mathematically term,

V = w\times l\times d

Where, w = width

h = height

l = length

Put the unit into the formula

V = m\times m\times m

V =m^3

This is the unit of volume.

We know that,

Square meters is the unit of area.

Liters per cubic gram is the unit of density.

Gram per cubic centimeter is the unit of density in CGS.

Hence, Cubic meters is the unit of volume.

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Answer: a) 0.78 m/s b) 1.57 m/s

Explanation:

M = father's mass


m = son's mass = M/3


V = father's initial speed


v = son's initial speed

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M*V^2 = (1/2)(M/3)v^2


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Second equation:


(1/2)M*(V + 1.4)^2 = (1/2)m*v^2


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cancel out the M's and (1/2)'s


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V^2 + 2.8V + 1.96 = 3V^2


V^2 -1.4V -0.98 = 0

V^2 = 0.98/0.4 = 2.45

V = 1.57

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