Physics Answers

What is the total capacitance of a 10.0 F, 15.0 F, 20.0 F and 5.0 F if they are connected in parallel?

A table tennis ball has a diameter of 3.80 cm and an average density of 0.0840 g/cm³. What force is required to hold it completely submerged underwater?

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.

Bold

Italic

Underline

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?