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Korolek [52]
3 years ago
14

There is a bell at the top of a tower that is 45 m high. The bell weighs 190 N. The bell has ____________

Physics
1 answer:
salantis [7]3 years ago
8 0

Answer:

The bell has a potential energy of 8550 [J]

Explanation:

Since the belt is 45 [m] above ground level, only potential energy is available. And this energy can be calculated by means of the following equation.

E_{p}= W*h\\E_{p} = 190*45\\E_{p}=8550[J]

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A particle with charge q = 10-9 C and mass m = 5.0 x 10-9 kg is moving in a magnetic field whose magnitude is 0.003 T. The speed
Marina86 [1]

Answer:

a=0.212 m/s²

Explanation:

Given that

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Lets take acceleration of the mass is a m/s²

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a=\dfrac{10^{-9}\times 500\times 0.003\times\ sin45^{\circ}}{5\times 10^{-9}}\ m/s^2

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4 0
3 years ago
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nirvana33 [79]

The material that is more closely related to the Styrofoam insulator.

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Styrofoam is usually made mostly of air, which means it is a poor conductor of heat, but an excellent convector. It traps the air in small pockets, which blocks the flow of heat energy. This reduces both conduction and convection and makes Styrofoam a good insulator.

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brainly.com/question/21369568

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8 0
2 years ago
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abruzzese [7]

Answer:

1. True

2. False

3. True

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2 years ago
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mote1985 [20]

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3 years ago
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