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Oliga [24]
3 years ago
9

A positive point charge Q is fixed on a very large horizontal frictionless tabletop. A second positive point charge q is release

d from rest near the stationary charge and is free to move. Which statement best describes the motion of q after it is released? a. As it moves farther and farther from Q, its speed will keep increasing.b. As it moves farther and farther from Q, its speed will decrease.c. As it moves farther and farther from Q, its acceleration will keep increasing.d. Its speed will be greatest just after it is released.e. Its acceleration is zero just after it is released.
Physics
1 answer:
UNO [17]3 years ago
6 0

Answer:

As it moves farther and farther away from Q, it's speed will keep increasing.

Explanation:

This is so because the point charges are both positive charges and positive charges repel.

As the charges repel, they do so at an increasing speed.

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Answer:

it is the judicious use of energy to prevent wastage

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2 years ago
Each second, 1250 m3 of water passes over a waterfall 150 m high. Three-fourths of the kinetic energy gained by the water in fal
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Answer:

The generator produces electrical energy at a rate of 1378125000 J per second.

Explanation:

volume of water falling each second is 1250 m^{3}

height through which it falls, h is 150 m

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⇒mass of 1250 m^{3} of water, m = 1250×1000 = 1250000 kg

acceleration due to gravity, g = 9.8 \frac{m}{sec^{2} }

in falling through 150 m in each second, by Work-Energy Theorem:

Kinetic Energy(KE) gained by it = Potential Energy(PE) lost by it

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Electrical Energy = \frac{3}{4}(KE)

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Can someone help me please? I’ve been trying to solve these questions all day.
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#16

If we put a resistor in circuit it will slow the speed of current

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Answer

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2.1K answers

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Explanation:

When pH of the solution is 11.

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At pH = 6, the concentration of ions is .

On dividing (1) by (2).

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Answer:

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