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At the top of a hill "f" the rollercoaster crests the 5.0 meter radius curve at 6.0 m/s. The mass of the passenger is 60 kg. How many G's would the passenger feel at the top of the hill?
An object is 5.7 cm from a spherical concave mirror. If the image is 4.7 cm tall and 10 cm from the mirror, how tall is the object
General information about the use of intensifying screens in radiology, and how films intended for use with intensifying screens differ from non-screen films.
A particle undergoes uniform circular motion of radius 28.3 µm in a uniform magnetic field. The magnetic force on the particle has a magnitude of 1.45 1017 N. What is the kinetic energy of the particle?
A heat engine working between 170.0oC and 400.0oC, takes in 1.639×107 J of heat and delivers 4.200×106 J of work per cycle. What is the maximum possible efficiency of an engine working between these two temperatures
A particle moves along the x' axis of frame S' with velocity 0.40c. Frame S' moves with velocity 0.60c with respect to frame S. What is the velocity of the particle with respect to frame S?
A 1400kg wrecking ball hangs from a 20m -long cable. By how much has the gravitational potential energy of the ball changed
An electron enters a region of space containing a uniform 0.0000179-T magnetic field. Its speed is 151 m/s, Find the radius r of the electron\'s path
A 55 kg swimmer is standing on a stationary 180 kg floating raft. Find the recoil velocity that the raft would have
The Red Shift is evidence of an expanding Universe. A star like our Sun has a peak wavelength of 518 nm. If the star appeared to have a peak wavelength of 530 nm, find the rate of expansion (velocity) between that star and our Sun.
A block of mass 50kg is pushed 20m along a frictionlesssurface by a constant horizontal force of 60N, What is the net work done on the block
A meter stick balances horizontally on a knife-edge at the 50.0 cm mark. With two 5.00 g coins stacked over the 8.0 cm mark, the stick is found to balance at the 43.0 cm mark. What is the mass of the meter stick?
Rivets can be cooled before they are put in place, thus when they reach equilibrium temperature they are more firmly fixed in place. If the volume expansion of iron is 35.0 X 10-6 K-1
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