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3 years ago

Which two statements about an electric motor are true?

Physics

2 answers:

allochka39001 [22]3 years ago

7 0

Options (b) and (d) are correct about an electric motor.

An electric motor is a device which coverts electrical energy into mechanical energy.It works on the principle that when a current carrying coil is placed in a magnetic field, it experiences torque. Because of that torque, the coil rotates and thus the electrical energy gets converted into mechanical (motion) energy.

mojhsa [17]3 years ago

3 0

Answer:

Options (b) and (d) are correct about an electric motor.

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A tree is 257 ft high. To the nearest tenth of a meter, how tall is it in meters? There are 3.28 ft in 1 m.

olga2289 [7]

Answer:

Height of tree = 78.35 meters.

Explanation:

We have

1 meter = 3.28 feet

That is

$1 ft = \frac{1}{3.28}=0.3048m$

Here height of tree = 257 ft

Height of tree = 257 x 0.3048 = 78.35 m

Height of tree = 78.35 meters.

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3 years ago

The number of protons equals the atomic number. TRUE OR FALSE?

Shkiper50 [21]

Answer:

true

Explanation:

The number of protons, neutrons, and electrons in an atom can be determined from a set of simple rules. The number of protons in the nucleus of the atom is equal to the atomic number (Z). The number of electrons in a neutral atom is equal to the number of protons.

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3 years ago

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PtichkaEL [24]

Solar energy - A

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3 years ago

Can someone please help me ASAP???!!!

olganol [36]

Answer: The answers are:

Explanation:

1. C

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4. B

5. D

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2 years ago

I Explain why you feel cold when tap or well water in winter. state with reason.

attashe74 [19]

Answer:

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Explanation:

Our body is in optimal status is a hot body and tap or well water is a cold body. Therefore we feel cold.

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2 years ago