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Whitepunk [10]
3 years ago
11

What is the centripetal acceleration of a small laboratory centrifuge in which the tip of the test tube is moving at 19.0 meters

/second in a circle with a radius of 10.0 centimeters?
Physics
2 answers:
Volgvan3 years ago
7 0
A_central = v^2/r = (19)^2/10 = 36.1 m/s^2
vivado [14]3 years ago
7 0

First convert the centimeters to meters which is 0.01m then using the equation centripital acceleration= v^2 / r = 19^2 / 0.01 you get 36100m/s^2

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500 J of work are done in 4 seconds to lift a 40 kg box to the top of a high shelf. How much power was required to complete the
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5 0
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A coil of wire consists of 20 turns, each of which has an area of 0.0015 m2. A magnetic field is perpendicular to the surface wi
stepan [7]

Answer:

magnitude of the induced emf in the coil is 0.0153 V

Explanation:

Given data

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magnitude  B2 = 5.42 T/s

to find out

the magnitude of the induced emf in the coil

solution

we know here

emf = -n A d∅ /dt

so here n = 20 and

A = 0.0015

and d∅ = B2 - B1 = 5.42 - 4.91

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so  put all value

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7 0
3 years ago
Describe the relationship between the pressure and volume of a gas when temperature and mass are constant
mr_godi [17]

Answer:

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Explanation:

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Therefore,

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PV is a constant.

Therefore we can say,

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5 0
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