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
elena-s [515]
3 years ago
7

What 3 things do you need to make an electromagnet ?

Physics
2 answers:
PolarNik [594]3 years ago
6 0

Answer:

magnet coppers wire and piece of metals

Hunter-Best [27]3 years ago
5 0

Answer:

1. Battery

2. Copper wire

3. Nail or piece of metal (zinc, iron, or steel).

You might be interested in
what two objects have stored energy? A. ball rolling on the ground B. a small rock sitting on top of a big rock C. a stretched r
Verizon [17]

The correct statements are:

B. a small rock sitting on top of a big rock

As the rock is at a height with respect to ground it has potential Energy

and

C. a stretched rubber band

A stretched rubber band has elastic potential energy


The others are actually moving and hence would consist of Kinetic energy. Potential energy is stored in objects that do not move and are stationary.

8 0
3 years ago
Read 2 more answers
A cannon fires a shell straight upward; 2.3 s after it is launched, the shell is moving upward with a speed of 17 m/s. Assuming
PtichkaEL [24]

Answer:

The speed of the shell at launch and 5.4 s after the launch is 13.38 m/s it is moving towards the Earth.                    

Explanation:

Let u is the initial speed of the launch. Using first equation of motion as :

u=v-at

a=-g

u=v+gt\\\\u=17+9.8\times 2.3\\\\u=39.54\ m/s

The velocity of the shell at launch and 5.4 s after the launch is given by :

v=u-gt\\\\v=39.54-9.8\times 5.4\\\\v=-13.38\ m/s

So, the speed of the shell at launch and 5.4 s after the launch is 13.38 m/s it is moving towards the Earth.

6 0
3 years ago
What is the difference between resistance and resistivity​
Crank

Answer:

google it up

Explanation:

it's there

6 0
3 years ago
Read 2 more answers
Why is the United States now considered a meritocracy?
Lesechka [4]
Well a isn’t it so i’m gonna go with d the american social statesman
3 0
3 years ago
How do you calculate acceleration? acceleration equals distance divided by time. acceleration equals speed multiplied by time. a
expeople1 [14]
Acceleration equals the change in velocity divided by time
4 0
3 years ago
Other questions:
  • What type of change accurs when a substance stays the same
    10·1 answer
  • What does the law of conservation of energy state about energy in a closed system
    9·1 answer
  • Is a type of passive transport that requires a pore or<br> channel to move solutes.
    6·1 answer
  • QUIK!!!!!!!!!!!!! 1. Compare your scores to your partner’s scores. Explain the reason for any differences. 2. How can improving
    8·1 answer
  • For two traveling waves, if the crest of one wave coincides with a trough of another, what type of interference occurs?
    8·1 answer
  • How is a pareto chart different from a standard vertical bar​ graph?
    12·1 answer
  • In some plants, the pistils don’t Form until a few days after the stamens do.How might this keep a plant from self pollinating
    8·1 answer
  • A pushing force acts on a toy car for 3 seconds causing it to accelerate at a rate A’. If the car is replaced with a similar, bu
    14·2 answers
  • A block slides down a frictionless plane that makes an angle of 24.0° with the horizontal. What is the
    14·1 answer
  • Which of the following provides alternating current? Select all that apply.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!