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Sam's job at the amusement park is to slow down and bring to a stop the boats in the log ride. If a boat and its riders have a mass of 1500 and the boat drifts in at 1.9 how much work does Sam do to stop it?
The hemisphere is placed on its flat surface, with the center directly over a 2.5 mm long line drawn on a sheet of paper. What length of line is seen by someone looking perpendicularly down on the hemisphere?
You push with a 20 N horizontal force on a 2 kg mass resting on a horizontal suface against a horizonatal friction forces of 12N. What is the accerlation.
plan a free-body diagram for the charge.
Two blocks move along a linear path on a nearly frictionless air track. One block, of mass 0.104 kg, initially moves to the right at a speed of 5.20 m/s, Find the final velocities of the blocks
Find the de Broglie wavelength of electrons with kinetic energies of 30 eV. Answer all in pm. Find the de Broglie wavelength of electrons
The moon is 3.85Ã-10^8 m from Earth, and it takes 27.3 days to orbit Earth. At what speed is the moon traveling relative to Earth
A nuclear power plant has an electrical power output of 1067MW and operates with an efficiency of 45%. what is the rise in temperature of the flowing water
Two manned satellites approaching one another at a relative speed of 0.300 m/s intend to dock. What is the loss of kinetic energy in this inelastic collision
Sodium-24, which is used to locate blood clots in the human circulatory system, has a half-life of 15.0 hours. Calculate the mass of the remaining sodium-24
An astronaut who is repairing the outside of her spaceship accidently pushes away a 90.5-cm-long steel rod, What is the magnitude of the EMF, in millivolts, induced between the ends of the rod
The loaded cab of an elevator has a mass of 3.00 multiplied by 103 kg and moves 171 m up the shaft in 23s at constant speed. At what average speed does the force from the cable do work on the cab?
A 40-kg firl and an 8.4-kg sled are on the surface of a frozen lake, 15 m apart. By means of a rope the girl exerts a 5.2-N force on the sled, How far from the girl's intial position do they meet
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