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andreev551 [17]
3 years ago
10

Two oppositely charged objects are separated by a small distance. The objects are then moved three times farther apart from each

other. Which of the following statements best describes what happens to the electrical force between the objects?
A: The force of attraction increases
B: The force of attraction decreases
C: The force of attraction stays the same
D: The force of attraction becomes a force of repulsion
Physics
1 answer:
stepan [7]3 years ago
7 0
Force is indirectly proportional to the distance. Therefore when the distance increases the force of attraction increases and the answer would be B
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x is vertical and y is horizontal

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Answer:

Frequency = 1,550Hz

Explanation:

To solve this we can use the equation: f=\frac{v}{\lambda}

(frequency = velocity/wavelength).

We are given the information that the wavelength is 22cm and the speed is 340m/s. The first step is to make sure everything is in the correct units (SI units), and to convert them if needed. The SI Units for velocity and wavelength are m/s and m respectively. This means we need to convert 22cm into meters, which we can do by dividing by 100, (as there are 100cm in a meter). 22/100 = 0.22m

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An elevator carrying a person of mass m is moving upward and slowing down. How does the magnitude f of the force exerted on the
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The force f of the elevator on the man keeps reducing as the elevator keeps going up while the gravitational force mg keeps increasing moving upwards.

<h3>What is an elevator?</h3>

An elevator is an electrical device that lifts people up and down a tall building or structure.

for the elevator to go up, f > mg.

for the elevator to come down mg > f.

Analysis

since the force on the man is f = ma

where a is the acceleration of the elevator, then it means when a increases,  f will increase and when it decreases, f would decrease. slowing down means a, is decreasing going up and this reduces the force as the elevator keeps going up.

on the other hand, gravity acts faster on bodies that are slower in motion so since g, increases going up, mg would also increase.

Learn more about forces in an elevator : brainly.com/question/13526583

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Why are there variations of traits within a population?
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3 years ago
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Answer:

emf= 9.88 \times 10^{-3} T

Explanation:

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According to the Faraday's law the emf induced in a rod passing transversely through a magnetic field is given as:

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