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Darina [25.2K]
2 years ago
11

A particle (q = +5.0 µC) is released from rest when it is 2.0 m from a charged particle which is held at

Physics
1 answer:
PilotLPTM [1.2K]2 years ago
3 0
The answer to your question is A. Have a great day
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Why is the perfect mechine is not possible in the real life?​
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Answer:

Because the mechanical advantage of the machine is affected by friction and weight but velocity ratio is not. So, mechanical advantage is less than velocity rate. Thus, the machine's efficiency is less than 100% and can't be a perfect machine

3 0
2 years ago
A rotating merry go-round makes one complete revolution in 4.2 s. (a) what is the linear speed of a child seated 1.3 m from the
gregori [183]
The radius, r, of the child from the center of the wheel is
r = 1.3 m

The wheel makes one revolution in 4.2 s. Its angular velocity is
ω = (2π rad)/(4.2 s) = 1.496 rad/s

The linear speed of the child is the tangential velocity, given by
v = rω
   = (1.3 m)*(1.496 rad/s)
   = 1.945 m/s

Answer: 1.95 m/s  (nearest hundredth)

6 0
3 years ago
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What is the answer for this question (4x³)²​
Delvig [45]
16x to the power of 6
6 0
3 years ago
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A good train took 7 hours to complete its journey. For the first 3 hours, it travelled an average speed of 186km/h. What was the
Sliva [168]
I really hope this helps

4 0
2 years ago
Which of the following is most closely related to the specific heat of a substance?A. its temperatureB. its melting pointC. its
swat32

Answer:

option (C)

Explanation:

The amount of heat required to raise the temperature of substance of unit mass by unit degree is called specific heat of that substance.

Its SI unit is Joule / Kg °C.

Every material has a constant value of specific heat.

So, option (c) is correct.

4 0
3 years ago
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