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A bicycle and rider have a combined mass of 70.0 kg and are moving at 6.00 m/s. A 70.0 kg person is now given a ride on the bicycle (total mass 140.0 kg). How did the addition of the new rider change the kinetic energy at the same speed?
A pair of thrusters exert an external impulsive torque on the satellite, causing an instantaneous change DH of angular momentum in the direction normal to H0, so that the new angular momentum is H1, at an angle of 20o to H0, as shown in the figure..
An artificial satellite circling the Earth completes each orbit in 142 minutes. Find the altitude of the satellite
The resistance and the magnitude of the current depend on the path that the current takes. Find the resistance and the current in each case
A golfer hits a tee shot off of a cliff that is 18.2 m high. If it lands in the fairway a horizontal distance of 270 m from the tee and is in the air for 5.3 seconds, What was the initial velocity of the golf ball
A child is trying to stack two uniform wooden blocks, 12 cm in length, so they will protrude as much as possible over the edge of a table
Two runners start simultaneously from the same point on acircular track of length 205 m and run in the same direction. How far from the starting point will the fast one have run
One method of producing neutrons for experimental use is to bombard 73Li with protons. The neutrons are emitted according to the reaction: 11H +73Li -> 74Be +10n. What is the minimum kinetic energy of the incident proton
A carpenter carries his 8kg toolbox at constant speed up 2 flights of stairs, each 3m high, in one minute. How much work did the carpenter do in carrying the toolbox up 2 flights
Force F = (-9.0 N) i + (5.0 N) j acts on a particle with position vector r = (-5.0 m) j + (1.0 m) k. What is the torque on the particle about the origin
A piano tuner hears one beat every 3.1 seconds when trying to adjust two strings, one of which is sounding 440 Hz, How far off in frequency is the other string
a motorcyclist who is moving along an x axis directed toward the east has an acceleration given by a 6.1 - 2.0t ms2
A point source of light is 235.0 cm below the surface of a body of water. Discover the diameter of the circle at the surface during which light emerges from the water.
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