Other Physics Answers

Name the type of force that acts on a structure when a moving object

strikes it.

 What is the capacitance of an empty parallel-plate capacitor with metal plates that each 2

have an area of 1.00 m , separated by 1.00 mm?. How much charge is stored in this

capacitor if a voltage of 3.00 x 103 V is applied to it?

Two small conducting and identical spheres A and B have charges -32nC and +20nC respectively, they are separated by a distance of 0.23m.

a. What is the magnitude of the electric force between two spheres? Is this force attractive or repulsive?

b. What is the magnitude of the gravitational force between two spheres? Is this force attractive or repulsive?

a boy pushes a 5000kg box along a floor with a force of 2000N.if the velocity of the box is uniform.What is the coefficient of friction between the box and the floor

using zero reference potential at infinity, determine the amount by which point a charge of 8x10^-8 c alter the electric potential at point 1.5m away where the charge is positive

Instructions: Show the whole solutions in each question.

1. Determine the net capacitance of the capacitor combination when the capacitances are C1=12µF, C2=2µF, C3=4µF When the 12V potential difference is maintained across the combination, find the charge and the voltage across each capacitor.

2. Compute the capacitance of a capacitor with two parallel plates and separated by a layer of paraffin that is 0.25cm thick. The area of each plate is 70cm^2, and the dielectric constant of paraffin is 2.

Three forces of magnitude 6N,2N,3N act on a small object in directions north,south and west respectively. Find the direction and magnitude of the resultant force.If the force to move and its mass is 0.2kg.Calculate the initial acceleration.

The air pressure at the base of a mountain is 75.0cm of mercury. Given that the average density of air is 1.25kg/m³ and the density of mercury is 13600kg/m³,calculate the height of the mountain. [Take g=10m/s²]

A particle's position on the x axis is given by x=5t^3+20t^2-t+10

Fine the particle velocity function v(1)and acceleration a (t)

An airplane flies at 500km/h in a 100km/h wind. What is the velocity of the plane relative to the ground?