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
marshall27 [118]
3 years ago
7

A device that uses electricity and magnetism to create motion is called a (motor magnet generator) . In a reverse process, a dev

ice that uses motion and magnetism can be used to create (light, electromagnetism, electricity ).
Physics
2 answers:
Tems11 [23]3 years ago
6 0

the answers are a. and c.

I hope I help you out!

Galina-37 [17]3 years ago
6 0

Answer: A device that uses electricity and magnetism to create motion is called a <u> motor .</u> In a reverse process, a device that uses motion and magnetism can be used to create <u>electricity</u>

Explanation:

A motor is a device that uses electricity and magnetism converts it to mechanical energy. A current carrying wire is placed between two magnets. A force is produced which causes the current carrying wire to rotate. Motor is used to pull water in pipelines.

In the reverse process, a generator uses motion and magnetism to produce electric current. When a conducting wire is placed between changing magnetic field, electromotive force is induced which causes electricity to flow in the wire.

You might be interested in
Suppose you first walk 12.0 m in a direction 20? west of north and then 20.0 m in a direction 40.0? south of west. how far are y
Gnesinka [82]
The representation of this problem is shown in Figure 1. So our goal is to find the vector \overrightarrow{R}. From the figure we know that:

\left | \overrightarrow{A} \right |=12m \\ \\ \left | \overrightarrow{B} \right |=20m \\ \\ \theta_{A}=20^{\circ} \\ \\ \theta_{B}=40^{\circ}

From geometry, we know that:

\overrightarrow{R}=\overrightarrow{A}+\overrightarrow{B}

Then using vector decomposition into components:

For \ A: \\ \\ A_x=-\left | \overrightarrow{A} \right |sin\theta_A=-12sin(20^{\circ})=-4.10 \\ \\ A_y=\left | \overrightarrow{A} \right |cos\theta_A=12cos(20^{\circ})=11.27 \\ \\ \\ For \ B: \\ \\ B_x=-\left | \overrightarrow{B} \right |cos\theta_B=-20cos(40^{\circ})=-15.32 \\ \\ B_y=-\left | \overrightarrow{B} \right |sin\theta_B=-20sin(40^{\circ})=-12.85

Therefore:

R_x=A_x+B_x=-4.10-15.32=-19.42m \\ \\ R_y=A_y+B_y=11.27-12.85=-1.58m

So if you want to find out <span>how far are you from your starting point you need to know the magnitude of the vector \overrightarrow{R}, that is:
</span>
\left | \overrightarrow{R} \right |=&#10;\sqrt{R_x^2+R_y^2}=\sqrt{(-19.42)^2+(-1.58)^2}=\boxed{19.48m}

Finally, let's find the <span>compass direction of a line connecting your starting point to your final position. What we are looking for here is an angle that is shown in Figure 2 which is an angle defined with respect to the positive x-axis. Therefore:

</span>\theta_R=180^{\circ}+tan^{-1}(\frac{\left | R_y \right |}{\left | R_x \right |}) \\ \\ \theta_R=180^{\circ}+tan^{-1}(\frac{1.58}{19.42}) \\ \\ \theta_R=180^{\circ}+4.65^{\circ}=185.85^{\circ}


6 0
3 years ago
Rotation of the lever OA is controlled by the motion of the contacting circular disk of radius r = 300 mm whose center is given
sergiy2304 [10]

Answer:

The angular velocity is

5.64rad/s

Explanation:

This problem bothers on curvilinear motion

The angular velocity is defined as the rate of change of angular displacement it is expressed in rad/s

We know that the velocity v is given as

v= ωr

Where ω is the angular velocity

r is 300mm to meter = 0.3m

the radius of the circle

described by the level

v=1.64m/s

Making ω subject of the formula and solving we have

ω=v/r

ω=1.64/0.3

ω=5.46 rad/s

3 0
3 years ago
Suppose you take
kati45 [8]

Answer:

a current will be induced.

Explanation:

4 0
3 years ago
Read 2 more answers
What is potential energy​
JulsSmile [24]

Answer:

An Energy held by an object because of its position relative by other objects

Explanation:

6 0
3 years ago
Which statements accurately describe elements? Check all that apply
GalinKa [24]

Answer:

Elements are made up of only one type of atom. Each element has a unique chemical symbol. Elements can be identified by their atomic number.

7 0
3 years ago
Other questions:
  • A reaction that absorbs 49.6 kj from the surroundings in a vessel that undergoes a volume decrease of 1.25 l at a constant 4.00
    8·2 answers
  • What force is needed to give a 4.5-kg bowling ball an acceleration of 9 m/s2?
    8·2 answers
  • Which of the following is NOT scientifically explained by natural selection and its evolutionary consequences?
    6·1 answer
  • A _____ is a device that multiplies force or increases speed and makes work easier.
    12·2 answers
  • 0.25-kg block oscillates on the end of a spring with a spring constant of 200 N/m. If the oscillations is started by elongating
    14·1 answer
  • An astronaut in space cannot use a scale or balance to weigh objects because there is no gravity. But she does have devices to m
    8·1 answer
  • When jumping straight down, you can be seriously injured if you land stiff-legged. One way to avoid injury is to bend your knees
    9·1 answer
  • Correct unit of speed
    11·2 answers
  • Hey guys I need help please help me what do y’all think it is I need help And I’m struggling
    6·2 answers
  • A cable that weighs 4 lb/ft is used to lift 1000 lb of coal up a mine shaft 700 ft deep. Find the work done.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!