Physics Answers

A 14-gauge copper wire has a diameter of 1.628 mm. What magnitude current flows when the drift velocity is 1.00 mm/s?

What is the resistance of a 25.0-m-long piece of 12-gauge copper wire having a 2.053-mm diameter?

Two protons in an atom are 1.75 m x 10 ^ -8 m from each other. Calculate

the electric force between them.

Find the value of the electric field at a distance r=10 cm from the center of a non-conducting sphere of radius R=1 cm which has an extra positive charge equal to 7 C uniformly distributed within the volume of the sphere.

Find the flux through a spherical Gaussian surface of radius a=1 m surrounding a charge of 8.85 pC

Calculate the work done by a 47 n force pushing a 0.025 kg pencil 0.25m against a force of 23 n

Find the electric field midway between a 2 -μC point charge which are 2.5 m apart.

What is the electric field at a distance of 10 cm from an isolated point charge of

2 x 10 -9 C?

With solution please?

An object oscillates with simple harmonic motion along the x-axis, its position varies with time. According to the equation. x(t) = 4 Cos(πt + π/3 ). The time is given in a sec and the angles are in radian. a) Draw a free hand wave diagram. b) Determine the amplitude, frequency, and time period of the motion. c) Calculate the velocity and acceleration of the object at any time ‘t’. d) Using the result of part ‘b’,find velocity and acceleration at t = 5 sec.

An object oscillates with simple harmonic motion along the x-axis, its position varies with time. According to the equation. x(t) = 4 Cos(πt + π/3 ). The time is given in a sec and the angles are in radian. a) Draw a free hand wave diagram. b) Determine the amplitude, frequency, and time period of the motion. c) Calculate the velocity and acceleration of the object at any time ‘t’. d) Using the result of part ‘b’,find velocity and acceleration at t = 5 sec.