What part of a motor causes its electromagnet to turn in the same directionconsistently, transforming electrical energy into mechanical energy?
A. Commutator
B. Loop of wire
C. Permanent magnets
D. Battery

PLS HELP

Answers

Answer 1

Answer:

Commutator is part of a motor causes its electromagnet to turn in the same direction consistently, transforming electrical energy into mechanical energy.

What is energy?

Energy is the ability or capability to do tasks, such as the ability to move an item (of a certain mass) by exerting force. Energy can exist in many different forms, including electrical, mechanical, chemical, thermal, or nuclear, and it can change its form.

A commutator is a rotary electrical switch in certain types of electric motors and electrical generators.

Commutator is part of a motor causes its electromagnet to turn in the same direction consistently, transforming electrical energy into mechanical energy.

To learn more about energy refer to the link:

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Answer 2

Answer:

Answer:

A. Commutator

Explanation:

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The weight of a body floating in a liquid is

Answers

Answer:

The apparent weight is the weight of the body minus the weight of the liquid displaced. The body will float only when both the weights are same. In this case, the given body of weight W is floating and hence the apparent weight is zero.

Answer:

Zero

Explanation:

A 600-N box is pushed up a ramp that is 2 meters high and 5 meters long. The person exerts a force of 300-N. What is the efficiency of the ramp?

Answers

From information given, there are two forces in action, the vertical and the horizontal. We first need to calculate separately work done by these two forces, then determine the efficiency.Work = Force × distancework(a) → 600N × 2m = 1,200 Nmwork(b) → 300N × 5m = 1,500 NmEfficiency = work(a) / work (b) × 100Efficiency = 1200 / 1500 × 100Efficiency = 0.8 × 100Efficiency = 80%Therefore the efficiency of the ramp is 80%

Increasing the pitch of a note on the piano means you make the note

Answers

Increasing the pitch makes a note higher

Answer:

Increasing the pitch of a note on the piano means you make the note higher

The state of matter with a specific volume but no definite shape is the _____ state. plasma
gas
liquid
solid

Answers

Answer

Liquid

Explanation

There are four states of matter. Gas, liquids, plasma and solids.

Solids has a definite shape.

Gas and plasma has no definite volume.

Liquids are made up of very small vibrating particles called molecules that are held together by intermolecular forces. This makes the liquid to have a definite volume and no definite shape.

Liquids are ideally incompressible, so their volume barely changes. They also adapt to whichever shape.

liquid

Which of the following minerals maintains healthy fluid balance?A. Calcium and iron
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