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The load across a 12-v battery consists of a series combination of three resistances are 15, 21, and 24 respectively.
1. Draw the circuit diagram
2. What is the total resistance of the load?
3. What is the magnitude of the circuit current?
Picture yourself in the castle of Helm’s Deep from the Lord of the Rings. You are on top of the castle wall and are dropping rocks on assorted monsters that are 16.15 m below you. Just when you release a rock, an archer located exactly below you s..
An artificial lens is implanted in a person's eye to replace a diseased lens. The distance between the artificial lens and the retina is 2.70 cm, What is the power of the implanted lens
A solenoid is wound with 270 turns per centimeter. An outer layer of insulated wire with 200 turns per centimeter is wound over the solenoid's first layer of wire. What is the direction of the magnetic field at the center for this configuration
A 64-kg skier is going down a slope oriented 36° above the horizontal. Determine the pressure that each ski exerts on the snow
Your 800 kg car crashes into a parked car at 4 m/s. It comes to astop in 0.15 s. How much force did the parked car exert on it to stop it that quickly
Finally a thin rod of mass 7 kg is added between the two particles Since the particles are moving perpendicular to the line separating them, What the angular frequency of rotation of the rod + particles system
A ball of mass 5.0 Kg is lifted off the floor a distance of 1.7 m. what is the kinetic energy of the ball just before it hits the floor? What is its velocity
A sled weighing 1.0 X 10^2 N is held in place on a frictionless 20.0 degree slope by a rope attached to a stake at the top. The rope is parallel to the slope. What is the normal force of the slope acting on the sled.
A proton in the upper atmosphere moves at 9.8×105m/s , perpendicular to Earth's magnetic field, Find the curvature radius of the proton's trajectory
A constant net torque is applied to a object. Which one of the following wil not be constant? A solid disk and a hoop have the same mass, radius, and angular speed. If the same braking torque is applied to each, which takes longer to stop?
A record is rotating at 33 rpm. The motor is turned off andthe record comes to a stop at constant deceleration in 2.5 min.Determine the number of revolutions the record makes
A uniform 250 ladder rests against a perfectly smooth wall, making a 40.0 angle with the wall. What is the friction force on the ladder at the floor
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