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Elden [556K]
3 years ago
7

Which is a unit to measure air pressure?

Physics
2 answers:
nata0808 [166]3 years ago
8 0

Answer:

c) cubic centimetre is it's answer..

Flura [38]3 years ago
3 0

Answer: (cubic centimetre) in barometer

PSI

pascals

Newtons per sq meter

Bars

mm hg

inches of water

Atmospheres

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A car is traveling at a speed of 10m/s. A 0.5kg clump of mudis
CaHeK987 [17]

Answer:B

Explanation:

Given

speed of car v=10 m/s

mass of clump m=0.5 kg

Radius of car tire r=0.2 m

Since the tire is rotating about axle so a centripetal force is acting constantly on each particle towards the center of tire.

Centripetal force is given by

F_c=\frac{mv^2}{r}

where m=mass\ of\ element

v=speed

r=distance\ from\ center

F_c=\frac{0.5\times 10^2}{0.2}

F_c=250\ N (inward)

           

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3 years ago
Which of the following is an example of an electromagnetic wave?
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light from a neon sign


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3 years ago
Find the gravitational potential energy of an 84 kg person standing atop Mt. Everest at an altitude of 8848 m. Use sea level as
djverab [1.8K]

Answer:

E=7.28\times 10^6\ J

Explanation:

Given that,

Mass of a person, m = 84 kg

The person is standing at a top of Mt. Everest at an altitude of 8848 m

We need to find the gravitational potential energy of the person. We know that the gravitational potential energy is possessed due to the position of an object. It is given by :

E = mgh, g is the acceleration due to gravity

E=84\ kg\times 9.8\ m/s^2\times 8848\ m\\\\E=7283673.6\ J\\\\E=7.28\times 10^6\ J

So, the gravitational potential energy of the person is 7.28\times 10^6\ J

6 0
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Importance of electrical symbol​
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The electrical symbols are very important especially when fixing electrical appliances because it tells you where the wire of neutral and live go.
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