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A satellite of the Earth has a mass of 99kg and is at an altitude of 1.95x106 m. (Assume that U = 0 as r goes toinfinity.)
(a) What is the potential energy of thesatellite-Earth system?
(b) What is the magnitude of the gravitational force exerted by theEarth on the satellite?
(c) What force does the satellite exert on the Earth?
How many radians does the turntable rotate from the time it is turned off until it stops? (Assume constant angular acceleration.)
A door made of a uniform piece of wood measures 1 m by 2 m and has a mass of 18 kg. Find the force (mag and direction) that the door exerts on the hinge
If a third charge, of 5, is now placed at the point = 3.00, = 4.00 find the components of the total force exerted on this charge by other two charges.
A model-train transformer plugs into 120-V ac, What voltage is present across the tracks
A massless spring is hanging vertically and unloaded, from the ceiling. A mass is attached to the bottom end and released. How close to its final resting position is the mass after 1 second, given that it finally comes to rest 0.5 meters below the po..
A woman who can row a boat at 7.3 km/h in still water faces along, straight river with a width of 6.8 km and a current of 3.3km/h. Let point directly across the river and point directly downstream. If she rows in astraight line to a point directly..
A uniform conducting rod of length 28 cm has a potential difference across its ends equal to 13 mV (millivolts). What is the magnitude of the electric field inside the conductor
A 3.0x10 ² kg piano is being lifted at a steady speed from ground level straight up to an apartment 10 m above the ground. How much time does it take to lift the piano
The rotor (flywheel) of a toy gyroscope has mass 0.140 kg. Its moment of inertia about its axis is The mass of the frame is 0.0250 kg. Find the upward force exerted by the pivot
An RC circuit with C = 38.8 µF and R = 6.5 has a 27 V source in it. With the capacitor initially uncharged, an open switch in the circuit is closed. What is the voltage across the capacitor at that time
A grinding wheel is in the form of a uniform solid disk of radius 6.99 cm and mass 2.02 kg. How long does the wheel take to reach its final operating speed
A small conductive rod of length 2 m moves with a constant velocity v=17 m/s in a direction parallel to a long wire carrying a current of 26 A. The the axis of the rod is perpendicular to the direction of the wire and the distance between the wire an..
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