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4 years ago

A device that transforms electrical energy to mechanical energy is a

Physics

1 answer:

yarga [219]4 years ago

4 0

Answer:

Electric Motor

Explanation:

There are mainly two types of machines for inter-conversion between mechanical energy and electrical energy as under:

Motor
Generator

Motor is a device which converts electrical energy into a mechanical whereas generator does the exact opposite of motor.

There are 2 types of motors:

AC Motor - Converts alternating current into mechanical energy

DC Motor - Converts direct current into mechanical energy

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Vlad [161]

Answer:

Explanation:

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4 years ago

A golf ball (mass 0.045 kg) is hit with a club from a tee. The plot shows the force on the ball as a function of time in millise

almond37 [142]

Answer:

16.3 m/s

Explanation:

We are given that

Mass of golf ball=m=0.045 kg

We have to find the speed right after the hit.

$b_1=(16-1)\times 10^{-3}=15\times 10^{-3} s$

$b_2=(12-6)\times 10^{-3}=6\times 10^{-3} s$

Force,F=70 N

Change in momentum=Area of trapezium

Area of trapezium,A= $\frac{1}{2}(b_1+b_2) h$

Using the formula

$m(v-u)=\frac{1}{2}(15+6)\times 10^{-3}\times 70$

$0.045(v-u)=\frac{1}{2}(21)\times 10^{-3}\times 70$

$v-u=\frac{1}{2}\times \frac{1}{0.045}\times 21\times 10^{-3}\times 70$

$v-u=16.3$

Initial velocity of golf ball=u=0

$v-0=16.3$

$v=16.3 m/s$

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3 years ago

A satellite is always being pulled by gravity. <br> a. True<br> b. False

Alla [95]

There's no reason for the gravitational forces between
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The statement is true.

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4 years ago

How many nuclei decay in one half life?

Archy [21]

Answer:

50%

Explanation:

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3 years ago

Read 2 more answers

If anyone don't mind answering-:

Dennis_Churaev [7]

Answer:

1. inference

2. analysis

others I don't have any idea sorry

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3 years ago