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A 65.0 kg bungee jumper steps off abridge with a light bungee cord tied to her and to the bridge. Theunstretched length of the cord is 11.0m. She reaches the bottom of her motion 36.0 m below the bridge before bouncing back. Hermotion can be separated into an 11.0 mfree-fall and a 25.0 m section of simple harmonic oscillation.What time interval is required for the cord to stretch by 25.0 m?
a uniform rod of mass m and length l can pivot freely about a hinge attached to a wall, compute the angular acceleration of the rod
A light string can support a stationary hanging load of 23.8 kg before breaking. What range of speeds can the object have before the string breaks
A gass has 100 J of energy in the form of heat is transfered to a system and the system does 150 J of work, what is the change in the internal energy of the system
A ball is kicked with an initial velocity of 16 m/s in the horizontal direction and 14 m/s in the vertical direction. What maximum height is attained by the ball
Which is more important in producing a counting signal - the collection of electrons at the anode or the less rapid increase in the diameter of the positive ion sheath?
A canoe has a velocity of 0.37m/s southeast relative to the earth. The canoe is on a river that is flowing 0.47m/s, Find the magnitude of the velocity of the canoe relative to the river
A potter's wheel (a solid, uniform disk) of mass 5.7 kg and radius 0.65 m spins about its central axis. A 2.1 kg lump of clay is dropped onto the wheel at a distance 0.41 m from the axis. Calculate the rotational inertia of the system.
Calculate the maximum gravity anomaly at ground level over a buried anticlinal structure, modelled by a horizontal cylinder with radius 1000 m and density contrast 200 kg/m^3
A special electronic sensor is embedded in the seat of a car that takes riders around a circular loop-the-loop ride at an amusement park. What is the speed of the rider at the top of the loop
A father racing his son has 1/4 the kinetic energy of the son, who has 1/3 the mass of the father. The father speeds up by 1.5 m/s and then has the similar kinetic energy as the son.
find the center of mass of a uniform density cone. give your answer as a distance from the cone point, and as a fraction of the total cone height
Calcualte the radiation dosage (in rads) for a 67-kg person that is exposed to 6.0 seconds to a 3.0 Ci source of beta radiation.
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