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KengaRu [80]
3 years ago
10

What is physical quantity ? Give examples.​

Physics
1 answer:
Dahasolnce [82]3 years ago
7 0

Explanation:

physical quantity is any physical property that can be qualified that,is, be measured using numbers e.g mass, amount of substance,time and length

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the coefficient of kinetic friction between a couch and the floor is 0.65. if the couch has a mass of 42 kg and you push it with
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Explanation:

The net force along the horizontal direction is

\sum{F_x} = F_{applied} - f

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From the definition of frictional force,

f = \mu{N} = \mu{mg} = (0.65)(42\:\text{kg})(9.8\:\text{m/s}^2)

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2 years ago
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3 years ago
If the CD rotates clockwise at 500 rpm (revolutions per minute) while the last song is playing, and then spins down to zero angu
gavmur [86]

Answer:

Explanation:

Given that,

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