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konstantin123 [22]
3 years ago
11

What type of device uses an electromagnet to convert electrical energy into mechanical energy?

Physics
2 answers:
irinina [24]3 years ago
6 0
A motor uses an electromagnet to convert electrical energy into mechanical energy.
galben [10]3 years ago
5 0

Answer: The correct answer is "motor".

Explanation:

Electric motor: It is the device which converts the electrical energy into the mechanical energy.

When the current is flowing through the wire then there will be magnetic field around the wire.

Both magnetic field and the electric field are applied in the motor. So, there will be electric force and the magnetic force.

Electricity can be used to move magnet. The electric motor uses electricity in this way. It generates the magnetic field with the electric current flowing through the coil. This magnetic field helps in moving the magnet that runs the motor.

Therefore, motor is a device which uses an electromagnet to convert electrical energy into mechanical energy.

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Calculate the broadcast wavelength of the radio station 99.90 fm. seconds
taurus [48]

The radio waves are electromagnetic wave, so it travels with velocity of light i.e 3\times 10^{8} \ m/s.

We can use the relation between frequency, wavelength and speed as

\lambda =\frac{c}{f}

Here c is speed of light, \lambda is wavelength and f is frequency and its value is given 99.90 FM, it is actually in megahertz  (i.e 99.90 MHz).

Therefore,

\lambda =\frac{3 \times 10^{8}\ m/s }{99.90 \times 10^{6} \ Hz} = 3.003 \ m.

Thus, the broadcast wavelength of the given radio station is 3.003 m.

8 0
3 years ago
What hazardous wastes are common in ordinary households? What can you do to reduce the impact you make on the environment from t
labwork [276]

Answer:

The most common products include aerosols, anti-freeze, asbestos, fertilizers, motor oil, paint supplies, photo chemicals, poisons, and solvents, cleaning supplies.

Explanation:

Use homemade cleaners

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3 0
2 years ago
A balloon is expanded to the same volume as that of a human head. Do an order-of-magnitude estimate of the volume of this balloo
cestrela7 [59]

Answer:

Volume of balloon =  1000 cm^3

Explanation:

 The head of a normal person can be assumed as a sphere with radius 10 cm.

 Volume of sphere =\frac{4}{3} \pi r^3, where r is the radius.

 We have approximate radius = 10 cm.

  Approximate volume of head =\frac{4}{3} \pi r^3=\frac{4}{3} *\pi* 10^3=4188cm^3

 In the given options the closest value to the approximate volume is 1000 cm^3.

 So, volume of head = Volume of balloon =  1000 cm^3

4 0
2 years ago
A ball of mass 6 kg is moving to the right with a velocity of 4 m/s when it strikes a 12 kg green block moving to the left at 5
Marat540 [252]

Answer:

Velocity of both masses after the collisio

Explanation:

Hope it will help

<h2><em><u>Brainlists please</u></em></h2>
3 0
2 years ago
According to Dalton’s atomic theory
NARA [144]
Dalton's atomic theory was the first complete attempt to describe all matter in terms of atoms and their properties. ... The first part of his theory states that all matter is made of atoms, which are indivisible. The second part of the theory says all atoms of a given element are identical in mass and properties.
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2 years ago
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