Physics Answers

You have five(5) 10.0 Farad capacitors. Find the total capacitance if the capacitors are connected in series.

The attractive force between two equal but opposite charges is F newtons when the charges are 6 cm apart. What should be their distance apart to increase the attractive force to 6F newtons?

An unknown charge is repelled by a force of 40 newtons when it is at a distance of 5.0 cm from a charge of 40 microcoulombs. Find the magnitude of the unknown charge.

Two identical charges of 100 microcoulombs each are 12 cm apart. What is the electric potential at a point midway between them? What is the intensity of the electric field at the midway between them?

What is acceleration

Ariel dropped a golf ball from her second story window. The ball starts from rest and hits the sidewalk 3.5 s later with a velocity of 15.0 m/s. Find the average acceleration of the golf ball.

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You are operating a remote-controlled model car on a vacant tennis court. Your position is the origin of

coordinates, and the surface of the court lies in the 𝑥𝑦-plane. The car, which we represent as a point,

has x- and y- coordinates that vary with time according to

a) Find the car’s coordinates and its distance from you at time t = 2.0 s.

b) Find the car’s displacement and average velocity vectors during the interval from

t = 0 s to t = 2.0 s.

c) Find the components of the average acceleration in the interval from t = 0 s to t =

2.0 s.

1. Two conducting plates with a length of 1 m and a width of 0.5 m has polyethylene between them. What is the capacitance if the capacitor is 1 m high?

1. How long would it take Jesse with an acceleration of -2.50 m/s2 to bring his bicycle with an initial velocity of 13.5 m/s to a complete stop? 

1. Kaya is riding her dirt bike eastward on a dirt road. She spots a pothole ahead. Kaya slows her bike from 14.0 m/s to 5.5 m/s in 6.0 s. What is her acceleration?