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storchak [24]
2 years ago
7

A particle with charge -40.0nC is on the x axis at the point with coordinate x=0 . A second particle, with charge -20.0 nC , is

on the x axis at x=0.500 m. (iii) Is there a point. at a finite distance where the electric potential is zero? (a) Yes; it is to the left of x=0 . (b) Yes; it is between x=0 and x=0.500m. (c) Yes; it is to the right of x=0.500m. (d) No.
Physics
1 answer:
ICE Princess25 [194]2 years ago
4 0

A particle with charge -40.0nC is on the x axis at the point with coordinate x=0 . A second particle, with charge -20.0 nC, is on the x axis at x=0.500 m.

No, there is no point at a finite distance where the electric potential is zero.

Hence, Option D) is correct.

What is electric potential?

Electric potential is the capacity for doing work. In the electrical case, a charge will exert a force on some other charge and the potential energy arises. For example, if a positive charge Q is fixed at some point in space, any other positive charge when brought close to it will experience a repulsive force and will therefore have potential energy.

It is also defined as the amount of work required to move a unit charge from a reference point to a specific point against an electric field.

To learn more about electric potential, refer to:

brainly.com/question/15764612

#SPJ4

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3 years ago
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A motor is used to lift a 10 kg mass 2 m above the ground in 4 s. If the power input to the motor is 100 W. what is the efficien
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Answer:

98%

Explanation:

Given parameters

Mass of motor = 10kg

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Time = 2s

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Unknown

Efficiency = ?

Solution

Efficiency is the percentage of the power output to the power input.

Power is the rate at which work is done.

Power output = mass x g x height / time

g is the acceleration due to gravity

Power output = 10x 2 x 9.8 / 2 = 98W

Efficiency = power output/ power input x 100

Efficiency = 98/100 x 100 = 98%

7 0
3 years ago
Jon's bathtub is rectangular and its base is 18 ft2. (a) How fast is the water level rising if Jon is filling the tub at a rate
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Answer:

The water level in the bath tub is rising at a rate of 0.0111 ft/s

Explanation:

Volume of the bath tub = (Area of base) × (height)

Area of base = 18 ft² (constant)

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V = 18h

(dV/dt) = 18 (dh/dt)

If (dV/dt) = 0.2 ft³/s

0.2 = 18 (dh/dt)

(dh/dt) = (0.2/18)

(dh/dt) = 0.0111 ft/s

Hope this Helps!!!

6 0
3 years ago
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To increase the amount of electricity produced in the U.S., we could place what on top of all Wal-Mart stores?
Alecsey [184]

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Just one question:  Who's going to pay for them ?
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The biggest single year-round residential use of energy in the
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in the USA, it's apparently not worth the time, effort, or expense ! ? !

3 0
4 years ago
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An object is thrown vertically upward such that it has a speed of 25 m/s when it reaches two thirds of its maximum height above
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Answer:

v0 = 25 m/s

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a = -9.80 m/s^2

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but that's only 1/3 of the hight, so i time it by 3 to get 96m

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