1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
frosja888 [35]
3 years ago
10

Why are electromagnets used in metal scrap yards?

Physics
2 answers:
Andrej [43]3 years ago
8 0
Because the electromagnets can pick up magnetic material and move it around, hope this helps
iragen [17]3 years ago
8 0

Answer:

To separate the magnetic substance from the scrap.

Explanation:

The electromagnets are the magnets which shows magnetic properties when the electric current pass through them.

The magnetic substances are attracted towards the electromagnet from the scrap.

We can increase or decrease the strength of electromagnet by increasing or decreasing the strength of electric current pass through it.

You might be interested in
What role does gravity play in the weight of an object?
earnstyle [38]
In physics, weight is a measure of the force exerted by gravity on a mass.

You probably know that you weigh less on the Moon than on Earth. For instance, if you weigh 100. pounds on Earth, you will weigh 16.6 pounds on the Moon. But, if your mass on Earth is 100 kg, your mass on the Moon is... also 100 kg. Because the amount of matter you have does not change from the Earth to the Moon, but the gravitational force on the Earth is stronger than on the Moon, so you weigh more on Earth.

You can think of gravity pulling a mass toward the center of an object like the Earth. It pulls a lot harder for more massive objects like the Earth than for the Moon. That's why there's a difference in weight.

As a caveat, adding energy or mass to an object will affect its mass. Additionally, general relativity informs us that when something as traveling very near the speed of light, the whole idea of mass equivalency is not exactly true...
6 0
3 years ago
What is the formula to find the second charge in Coulomb's Law?
kicyunya [14]

Answer:

1.F is the electrostatic force between charges (in Newtons),

2.q₁ is the magnitude of the first charge (in Coulombs),

3.q₂ is the magnitude of the second charge (in Coulombs),

4.r is the shortest distance between the charges (in m),

5.ke is the Coulomb's constant. It is equal to 8.98755 × 10⁹ N·m²/C² .

5 0
2 years ago
Read 2 more answers
Can someone please help, ty!
lyudmila [28]

Answer:hypothesis: the plant died of lack  of light,moisture,or water

Explanation:

to test my hypothesis i put a plant in a room at room temp and repeat how i grew it,and observe what went wrong. hope this helps=)

5 0
3 years ago
Arrange the balls in order from greatest amount of gravitational potential energy to least
Aloiza [94]
F e d b c a
Hope this helps !!
6 0
3 years ago
Read 2 more answers
Written:
zmey [24]

Answer:

0.833

Explanation:

Power = energy / time

Power = force × distance / time

Power = force × velocity

P = (850 kg) (9.8 m/s²) (1.00 m/s)

P = 8330 W

P = 8.33 kW

The efficiency of the motor is therefore:

e = 8.33 kW / 10.0 kW

e = 0.833

5 0
3 years ago
Other questions:
  • If a 2 kg ball traveling at 10 m/s hits a wall and stops in 0.03 seconds, then how much force will the ball experience?
    13·1 answer
  • What increases when the frequency of a sound increases
    5·1 answer
  • In Kepler's model of the solar system, the planets move around the Sun in _________ orbits.
    5·1 answer
  • If the air temperature is the same as the temperature of your skin (about 30 ∘C), your body cannot get rid of heat by transferri
    5·2 answers
  • The method of heat transfer by which the sun warms the earth is
    7·2 answers
  • A block of mass m = 4.4 kg slides from left to right across a frictionless surface with a speed 9.2 m/s It collides in a perfect
    13·1 answer
  • what would be a very very very very very GOOD science project the the COUNTY SCIENCE FAIR!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    9·2 answers
  • 100 POINTS!!!
    13·1 answer
  • PLS HELP! A boy drops a ball from an observation tower. The ball hits the ground in 3.0 s. What is the ball's velocity at the ti
    5·1 answer
  • The
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!