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A satellite is placed between the Earth and the Moon, along a straight line that connects their centers of mass. The satellite has an orbital period around the Earth that is the same as that of the Moon, 27.3 days. How far away from the Earth should this satellite be placed?
Water having a density of 1000kg/m^3 is flowing with a velocity of 3 m/s through a pipe. Determine the water velocity at the restriction
A block of mass m1 = 21.5kg and a block of mass m2 = 5.50kg are connected by a massless string over a pulley in the shape of a solid disk having radius R = .250m, Determine the acceleration of the blocks
The wheel on a bench grinder has a diameter of 0.3048 m and a mass of 2.4 kg. It is spinning at 26.2 rad/s when the grinder is turned off. Calculate the net torque on the wheel
A 20.0 kg crate sits at rest at the bottom of a 12.9 m long ramp that is inclined at 33 degrees above the horizontal. What is the total work done on the crate during its motion from the bottom to the top of the ramp
A 115-? resistor, a 51.7-mH inductor, and a 154-?F capacitor are connected in series to an ac generator. At what frequency will the current in the circuit be a maximum
A student decides to spend spring break by driving 50miles dues east, then 50miles 30degrees south of east, How far will he drive, and how many vectors must he sum to calculate his displacement
The loaded cab of an elevator has a mass of 3.0 x10^3 kg and moves 171 m up the shaft in 23s at constant speed. At what average rate does the force from the cable do work on the cab.
Explain why heat can only be transferred from a hot object to a cold object and not the other way around.
An organ pipe is 1.17 m long. The temperature of the air is 20 degree C. What is the fundamental harmonic frequency of this pipe when it is closed at one end
A high-voltage copper transmission line with a diameter of 2.60 cm and a length of 130 km carries a steady current of 1.03 103 A. what time interval does one electron travel the full length of the line
A parallel-plate capacitor has plates of area 177.0 cm2 and a separation of 1.85 cm. Find the capacitance before the slab is inserted
Consider a rectangular loop of wire 6.8cm by 7.8cm in a uniform magnetic field of magnitude 1.4T. What is the average induced emf in the loop
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