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A 1.5 V battery is rate at 1,800 milliamp hrs (mAh). This means it can supply a current of 1.8 A for 1.0 hour before running out. How much electrical energy (in joules) is stored in the battery when it is new?
A person of mass 72 stands at the center of a rotating merry-go-round platform of radius 3.40 and moment of inertia 950. The platform rotates without friction with the angular velocity 0.95. The person walks radially to the edge of the platform.
To get to a concert in time, a harpsichordist has to drive 120 miles in 2.09 hours. What is his average velocity for the entire trip
A 2.30-? F capacitor is fully charged by being connected to a 6.0-V battery. The fully charged capacitor is then connected to a 0.250-H inductor.
two extremely large nonconducting horizontal sheets each carry uniform charge density on the surfaces facing each other. find the surface charge density on the lower sheet
A ship has a mass of 40000 kg. its energy gives it an acceleration of 0.27 m/s while it travels a distance of 105 meters from rest. what force does the engine exert on the ship.
A 60-kg basketball is dropped out of a window that is 6.1m above the ground. The ball is caught by a person whose h&s are 1.5m above the ground. Find gravitational potential energy of the ball.
At what distance from the wire would the magnitude of the magnetic field equal to the strength of the Earth's magnetic field of 5.0 x 10^-5 T?
A charge of q = +7.50 µC is located in an electric field. The x and y components of the electric field are Ex = 4.80 103 N/C and Ey = 7.40 103 N/C, respectively. (a) What is the magnitude of the force on the charge? (b) Determine the angle that th..
A 1055-kg van, stopped at a traffic light, is hit directly in the rear by a 790-kg car traveling with a velocity of +2.15 m/s. What is the final velocity of each vehicle?
What is the acceleration at the top of a jump?
A 1.85m diameter wagon wheel makes one revolution in 3.45s. What is the tangential speed of a point in it's rim
What is size of the gravitational force on the moon
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