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Question
A girl of mass mG is standing on a plank of mass mP. Both are initially at rest on a frozen lake that constitutes a frictionless, flat surface. The girl begins to walk next to the plank at a constant velocity vGP to the right relative to the plank. (The subscript GP denotes the girl relative to the plank.) (a) What is velocity vPI of the plank relative to the surface of the ice? (Utilize following as necessary: vGP, mG, and mP. Indicate the direction with the sign of your answer. Let positive direction be in the direction that the girl walks.) (b) What is girl's velocity vGI relative to the ice surface? (Use following as required: vGP, mG, and mP. Indicate the direction with sign of your answer. Let positive direction be in a direction that the girl walks.)
A 15.0 kg bucket of water is suspended by a very light rope wrapped around a solid uniform cylinder 0.300 m in diameter with a mass of 12.0 kg. What is the tension in the rope while the bucket is falling
The dipole moment of a water molecule in liquid water is 6.2×10-30 C•m, and the effective diameter of the water molecule is 2.8×10-10 m. In an earlier homework problem the effective dipole charge separation for water was calculated as 1.9×10-11 m.
FA 2.0%u03BCC charge and a 2.9%u03BCC charge are 11.0cm apart. Find a point where the electric field is zero
A proton is released from rest at the positive plate of a parallel-plate capacitor. What will be the final speed of an electron released from rest at the negative plate
A cannon is rigidly attached to a carriage, which can move along horizontal rails, but is connected to a post by a large spring, Determine the maximum extension of the spring
What is the minimum coefficient of static friction between the road and the tires on a car for the car to go around a flat curve at 45.0 mph
Two large parallel plates are separated by 0.90cmand carry uniform charge densities equal in magnitude and opposite in sign, Find the magnitude of the charge density on the plates
A battery has an emf of 7.5 V and 16 A of current flows through it. What power is this battery supplying
Find the gage pressure at the center of pipe A in pounds per square inch and in kilopascals.
a 19.2 kg sled is being pulled across a horizontal surface at a constant velocity. determine the coefficient of kinetic friction
How much heat does it take to enhance the temperature of 8.00 of an ideal monatomic gas from 22.0 to 61.0 if the gas is held at constant volume.
A telescope has an angular magnification of -30× and a barrel 1.02m long. What is the focal length of the eyepiece
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