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Georgia [21]
2 years ago
12

A device that uses electricity and magnetism to create motion is called a

Physics
2 answers:
Lady bird [3.3K]2 years ago
8 0

Answer:

electric motors is the answer

Setler [38]2 years ago
4 0
Electric motor or electric magneticsuim
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What does Inert mean? Why are Noble Gases Inert? Include an explanation of atomic structure and electrons.
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Depending on what way you are trying to use it electrons connect to almost anything just like little balls of magnetics think of it that way. of it being able to just force and charge into any thing.
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Which is the result of using a machine?
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Correct Answers is A.

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Simple most example is a lever. The force applied is smaller and the output work is larger as compared to input.

Option B cannot be true, as there must be a force to get some work done.
Option C and D are inverse of what a machine is designed for. A small force can be exerted through a large distance to have a large force exerted through a small distance. Common Example of this principle is a screw opener. 
3 0
4 years ago
What is the acceleration of the object?<br> m/s²
Orlov [11]

Answer:

-2.5m/s^2

Explanation:

10-40/12-0=-2.5

7 0
2 years ago
The length of a bicycle pedal arm is 0.177 m, and a downward force of 145 N is applied to the pedal by the rider. What is the ma
kramer

Answer:

(a) 19.25 N-m

(b) 25.67 N-m

(c) 0 N-m

Explanation:

Given:

Length of the pedal arm (L) = 0.177 m

Downward force (|\vec{F}|) = 145 N

Magnitude of torque is given by the formula:

T=FL\sin\theta

Where, \theta\to angle\ between\ F\ and\ L

(a)

Given:

\theta=48.6°

Therefore, torque is given as:

T=FL\sin\theta\\\\T=(145\ N)(0.177\ m)(\sin(48.6))\\\\T=19.25\ Nm

Therefore, the torque is 19.25 N-m.

(b)

Given:

\theta=90°

Therefore, torque is given as:

T=FL\sin\theta\\\\T=(145\ N)(0.177\ m)(\sin(90))\\\\T=25.67\ Nm

Therefore, the torque is 25.67 N-m.

(c)

Given:

\theta=180°

Therefore, torque is given as:

T=FL\sin\theta\\\\T=(145\ N)(0.177\ m)(\sin(180))\\\\T=0\ Nm

Therefore, the torque is 0 N-m.

8 0
3 years ago
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