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The starter motor of an automobile engine draws an electric current of 31 Amp from the battery. The copper wire to the motor is 5.30 millimeter in diameter and 1.45 meter long. The starter motor runs for 0.85 second before the automobile engine starts up. Find how much electric charge passes through the starter motor?
A very long uniform line of charge has charge per unit length 4.68C/m and lies along the x-axis. A second long uniform line of charge has charge per unit length -2.44C/m and is parallel to the x-axis at y1 = 0.410m. What is the magnitude of the net e..
A charged paint is spread in a very thin uniform layer over the surface of a plastic sphere of diameter 20.0 cm, Find the electric field just inside and just outside the paint layer
A cart is sitting at the top of an inclined plane; 5.2 m long and meets the horizontal at 12o. Compute the velocity of the cart as it reaches the bottom of the incline
A .363kg mass slides on a frictionless floor with a speed of 1.24m/s. The mass strikes and compresses a spring with a force constantof 44.5 N/m. how long does it take for the spring to stop the mass
The tortoise can run with a speed of 0.1 m/s and the hare can run with a speed of 2 m/s. They start their race at the same time, but the hare, feeling confident, stops along the way for a two minute nap, and the tortoise wins by the length of his ..
a helium balloon is used to lift a load of 101 n. the weight of the envelope of the balloon is 49.5 n and the volume of
How much is the spring compressed?
Light enters a substance from air at 30 degrees to the normal. It continues through the substance at 23 degrees to the normal. What would be the critical angle for this substance
A highway curve has a radius of 0.14 km and is unbanked. A car weighing 12 kN goes around the curve at a speed of24 m/s without slipping. What is the magnitude of the horizontal force of the road on the car?
A heat pump has a coefficient of performance of 3.85 and operates with a power consumption of 6.88 x 103 W. How much energy does it deliver into a home during 2 h of continuous operation
A window air conditioner has an average coefficient of performance of 2.3. In a futile attempt to cool a bedroom, Determine the net heat added to the room by operating the air conditioner in this manner
Some cell walls in the human body have a layer of negative charge on the inside surface and a layer of positive charge of equal magnitude on the outside surface, Estimate the total electric-field energy stored in the wall of a cell of this size
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