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A planet's moon travels in an approximately circular orbit of radius 5.4 107 m with a period of 7 h 21 min. Calculate the mass of the planet from this information.
A 1.0-kg block is pushed up a rough 22° inclined plane by a force of 7.0 N acting parallel to the incline. Determine the magnitude of the force of friction acting on the block
Wishing to move his television set to another room, the owner extends the aerial feeder cable, calculate the size of the signal transmitted across the join to the second cable
A ball dropped from 50 cm rebounds to a height of 33cm. Find the fraction of the original energy lost
Forces in a Three-Charge System Coulomb's law for the magnitude of the force between two particles with charges and separated by a distance is , where , and is the permittivity of free space.
Suppose the temperature of 4.72 L of ideal gas drops from 351 K to 275 K. (a) If the volume remains constant and the initial pressure is atmospheric pressure, Find the number of moles of gas
A 24-V battery is connected in series with a resistor and an inductor, Find the energy stored in the inductor one time constant after the switch is closed
The boom in the crane is free to pivot about point P and is supported by the cable that joins halfway along its 18 m length. the cable passes over a pulley and is anchored at the back of crane. the boom has a mass of 1700 kg, distributed evenly an..
The catapult on an aircraft carrier can take an aircraft from 0 to 209 mph (the launch speed) in 9 seconds, at which time the aircraft launches
A 3.0kg mass initially traveling in the +x direction at 3.0m/s collides with a 2.0kg mass traveling in the -x direction at 3.0m/s. find The coefficient of restitution between the two masses
Miranda, a satellite of Uranus, is shown in part a of the figure below. It can be modeled as a sphere of radius 242 km and mass 6.68 1019 kg. What is his vector impact velocity
We have a typical student microscope with a rotating platform that allows the user to select from three objective lenses. calculate the highest and lowest magnitude of the overall angular magnifications available
A bird sits on a high-voltage power line with its feet 4.6 cm apart. What is the potential difference between the bird's feet
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