Start Discovering Solved Questions and Your Course Assignments
TextBooks Included
Active Tutors
Asked Questions
Answered Questions
A 600 pF capacitor is charged by a 200 V supply. It is then disconnected from the supply and is connected to another uncharged 600 pF capacitor. How much electrostatic energy is lost in the process?
A ball is thrown vertically upwards into the air. It rises a vertical distance of 3.1 m before falling to the ground. Assuming that all of the ball's initial kinetic energy is converted into gravita
Determine the charge on each capacitor if the combination is connected to a 100 V supply.
Three capacitors each of capacitance 9 pF are connected in series. (a) What is the total capacitance of the combination?
A spherical conductor of radius 12 cm has a charge of 1.6 x 10-7C distributed uniformly on its surface. What is the electric field
A regular hexagon of side 10 cm has a charge 5 µC at each of its vertices. Calculate the potential at the centre of the hexagon.
Verify this result for the simple configuration of two charges of the same magnitude and sign placed a certain distance apart.
A 0.300 kg croquet ball makes an elastic head-on collision with a second ball initially at rest. The second ball moves off with half the original speed of the first ball.
A hollow charged conductor has a tiny hole cut into its surface. Show that the electric field in the hole is, where is the unit vector in the outward normal direction, and is the surface charge den
What are the force and torque experienced by a system having a total dipole moment equal to 10-7 Cm in the negative z-direction?
A 13 g bullet traveling 222 m/s penetrates a 2.0 kg block of wood and emerges cleanly at 159 m/s. If the block is stationary on a frictionless surface when hit, how fast does it move after the bulle
As the driver pushes the throttle forward, the skier accelerates. A 74.4-kg water-skier has an initial speed of 5.5 m/s. Later, the speed increases to 12.5 m/s. Determine the work done by the net ex
(a) What is the net charge inside the box? (b) If the net outward flux through the surface of the box were zero, could you conclude that there were no charges inside the box? Why or Why not?
How much work is done by the muscle in stretching the tendon 0.44 cm as the force increases from 2600 N to 4600 N?
Calculate the kinetic energy that the earth has because of its rotation about its own axis. For comparison, the total energy used in the United States in one year is about 9.33 x 109 J.
An electrostatic field line is a continuous curve. That is, a field line cannot have sudden breaks. Why not?
A quantity of water is poured into a graduated cylinder, which then reads 129 mL. What is the mass of the water in kilograms?
A 5.00 capacitor is initially charged to a potential of 16.0 . It is then connected in series with a 3.75 inductor. What is the maximum current in the inductor?
A ball of mass 0.340 kg moving east (+x direction) with a speed of 3.00 m/s collides head-on with a 0.520 kg ball at rest. If the collision is perfectly elastic, what will be the speed and direction
A coal-fired electric power plant has an overall efficiency of 35% and an output of 1,496 megawatts. How many terajoules (trillions of joules) of waste heat does it reject to the environment each da
An object which has a height of 12.5 cm is placed 45.0 cm in front of a concave spherical mirror which has a focal length of 15.0 cm. What is the radius of curvature of this mirror?
The ball goes through the net 3.10 m above the floor at a speed of 3.30 m/s. What is the work done on the ball by air resistance, a nonconservative force?
Jane, looking for Tarzan, is running at top speed (6.6 m/s) and grabs a vine hanging vertically from a tall tree in the jungle. How high can she swing upward?
A projectile is fired at an upward angle of 45° from the top of a 242 m cliff with a speed of 208 m/s. What will be its speed when it strikes the ground below? (Use conservation of energy.)
Consider a refrigerator with a coefficient of performance 6.1. Suppose the temperature in the room outside the refrigerator is 22 degrees Celsius. What is the lowest temperature (in degrees Celsius)