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Physics

Physics
Which term is not associated with sound wave?

Decibel
Mach
Hertz
Candela

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Physics
Outside of cooking utensils are generally left black from below because

It is difficult to clean daily.
Black surface is a poor conductor of heat.
Black surface is a good conductor of heat.
Black surface is a good absorber of heat.

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Physics
Force of impact is the force

None of these
By the speed of the object
When the objects meet
By the objects weight

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Physics
The velocity of sound is more in

Wood
Water
Steel
Air

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Physics
Longitudinal waves cannot travel through

Solid
Gas
Vacuum
Liquid

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Physics
When a constant force acts on an object with a mass of 8 kg for a duration of 3 s. it increases the object's velocity from 4 m/s to 6 m/s . What is the magnitude of the applied force?

3.33 N
4.33 N
5.33 N
6.33 N

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