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Juliette [100K]
3 years ago
8

What is loudness of sound?

Physics
2 answers:
dedylja [7]3 years ago
6 0
The loudness of sound refer to how loud or soft a sound seems to a listener
Fed [463]3 years ago
5 0
How loud or soft the sound is
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A 100 kg mass is pulled along a frictionless surface by a horizontal force F such that its acceleration is 10.0 m/s2. A 20 kg ma
DIA [1.3K]

Answer

given,

mass = 100 kg

acceleration = 10 m/s²

A mass 20 kg slides over 100 kg block

acceleration = 3 m/s²

horizontal friction exerted by the 100 kg block on 20 kg

using newton's second law

F - f = 0

F = f

f = ma

f = 20 × 3

f = 60 N

now net force acting on the 100 kg block

F_net = m a

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F_net = 1000 N

after 20 kg block falls the acceleration of the bock

F = 1000 +60

F = 1060 N

acceleartion on the block

a = \dfrac{F}{m}

a = \dfrac{1060}{100}

a = 10.60 m/s²

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3 years ago
Which two of the senses are considered chemical senses
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Tanya [424]

Answer:

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