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Batteries are rated in terms of ampere-hours (A · h). For example, a battery that can produce a current of 2.00 A for 3.00 h is rated at 6.00 A · h.
(a) What is the total energy stored in a 9.0-V battery rated at 58.0 A · h?
___________kWh
(b) At $0.0830 per kilowatt-hour, what is the value of the electricity produced by this battery?
$__________
A solid cylinder (with a radius of 25cm and a mass of 4.4kg) is rotating counterclockwise with an angular speed of 0.5 revolutions per second just above a flat surface. What is the angular velocity of the cyclinder after .35 seconds slipping
In an eye that is farsighted, the eye focuses parallel rays so that the image would form behind the retina. In an eye that is nearsighted, the image is formed in front of the retina.
A box is sliding down an incline tilted at an angle 14.0° above horizontal. The box is sliding down the incline at a speed of 1.70 m/s. The coefficient of kinetic friction between box and incline is 0.380. How far does the box slide down the incli..
A 16320-kg airplane lands with a speed of 89 m/s on a stationary aircraft carrier deck that is 115 m long. Find the work done by nonconservative forces in stopping the plane
When a 290 g piece of iron at 182°C is placed in a 100 g aluminum calorimeter cup containing 250 g of glycerin at 12°C, What is the specific heat of glycerin
The camel walks at the uniform speed 4.53 km/hr along a straight line in the direction 39.7? north of East (only the camel knows why he chose that particular direction). Explain how long will it take the camel to cross the desert?
A saw blade has a mass of 0.5 kg and a radius of 10 cm and is rotating at 300 rpm. What frictional torque acts on the saw blade as it slows to a stop
A proton takes 99.0?s to complete one orbit around a 14.5 m diameter cyclotron. What's the cyclotron's magnetic field
A wedge of mass M and angle ? is placed on a flat frictionless surface. A crate of mass m is placed on the wedge at height h and starts sliding down the wedge without friction. Find the acceleration of the crate and the wedge relative to the gr..
The top of the pool table is 0.810 m from the floor. The placement of the tape is such that 0 m aligns to the edge of the table, At what speed did his pool ball hit the ground
A particle with charge +3 nC is located at position A. Another particle with charge -4 nC is located at position B. What is the magnitude of the electric field at location B
The suspension cables on the Brooklyn Bridge are 15.75 in. diameter wire ropes. Estimate the total drag force on one of the cables in a 40 mph wind if the length of one cable is about 3000 ft and the air temperature is 70o F.
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