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
Vaselesa [24]
3 years ago
8

What creates the magnetic field in an electromagnet?

Physics
2 answers:
slava [35]3 years ago
8 0

Answer:

b

Explanation:

Blizzard [7]3 years ago
4 0

Answer:

electric current through a wire coil

?

Explanation:

You might be interested in
Two double bonds means that the total number of electrons being shared in the molecule is
Tema [17]

Answer:

9 terms. In carbon dioxide (CO2), there are two oxygen atoms for each carbon atom. Each oxygen atom forms a double bond with carbon, so the molecule is formed by two double bonds. Two double bonds means that the total number of electrons being shared in the molecule is.

Explanation:

3 0
2 years ago
A construction worker is pushing a 50.0-kg box with a force of 150.0 N to the right. If the box is moving at a constant velocity
9966 [12]

Yes omg yes I literally have the same question and need to find the answer
7 0
2 years ago
A 12 n cart is moving on a horizontal surface with a coefficient of kinetic friction of 0.20. what force of friction must be ove
jonny [76]

We must remember that the total net force equation at constant velocity is:

<span>F – Ff = 0</span>

of

F - µN = 0

Using Newton's 2nd Law of Motion:<span>

F = m a 

<span>Where,

F = net force acting on the body 
m = mass of the body 
a = acceleration of the body 

Since the cart is moving at a constant velocity, then acceleration is zero, hence the working equation simplifies to 

F = net Force = 0 

Therefore, 

F - µN = 0 

where 

µ = coefficient of friction = 0.20 
N = normal force acting on the cart = 12 N 

Therefore, 

F - 0.20(12) = 0 

<span>F = 2.4 N </span></span></span>
4 0
3 years ago
You have covered a grounded metal surface with a layer of photoconductor. Working in the dark, you sprinkle negative charge onto
Keith_Richards [23]

Answer:

A. the left half becomes neutral while the right half remains negatively charged

Explanation:

This is because wherever light strikes the photoconductor, it transforms from an insulator into a conductor. The charge will then migrate through it and leaves its surface. By exposing the left half of the photoconductor to light, you allow its local charge to leave and it becomes neutral.

6 0
3 years ago
An electric company charges $9.55 per month plus $0.14 per? kilowatt-hour (kwh) for the first 250 kwh used per month and $0.03 p
storchak [24]
$34.75 per month

It is a trick question at the end because it says that anything over 250 kwh is $0.03. Although, you are only calculating for 180 kwh and the monthly charge.


8 0
3 years ago
Other questions:
  • A mass m = 1.1 kg hangs at the end of a vertical spring whose top end is fixed to the ceiling. The spring has spring constant k
    6·1 answer
  • Experiment: Group 1 drinks 500 mL of coffee a day.
    14·1 answer
  • Under constant acceleration the average velocity of a particle is half the sum of its initial and final velocities. Is this stil
    14·1 answer
  • Dissolving sodium chloride will
    8·1 answer
  • List and define 4-5 waste materials from copper ore processing
    10·1 answer
  • A man is walking while riding a train. He says he is moving at 2 mph. A woman standing on a platform at a train station says the
    7·1 answer
  • A friend is making vegetable soup. he add some salt to the simmering broth. the salt dissolves, and your friend says the broth s
    12·1 answer
  • Are light waves longitudinal or transverse
    7·1 answer
  • You are a guest magician in a circus. One of your tricks is to place a football on an inclined plane without the football rollin
    8·1 answer
  • A uniform solid sphere of unknown radius and mass floats exactly half-submerged in a fluid of density 999 kg/m3. Find the densit
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!