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The Cajun Cliffhanger used to be a ride at Great America where you would stand with your back to the inside wall of a vertical cylinder. As the cylinder turned faster and faster, eventually the floor beneath you would be lowered leaving you 'plastered' to the wall. The ride had a radius of 2.5 m and a period of revolution of 2.0 seconds. Determine the minimum coefficient of friction needed to keep passengers from sliding down the wall when the floor is dropped away.
A paperweight is made of a solid glass hemisphere with index of refraction 1.50. The radius of the circular cross section is 4 cm. The hemisphere is placed on its flat surface, with the centre directly over the 2.5 mm long line drawn on a sheet of ..
White light strikes a diffraction grating. A rainbow appears on a wall just below the direction of the horizontal incident beam. Determine the color of the top of the rainbow
The half life for the alpha decay of uranium 238 is 4.47x10^9 yrs old. Determine the age (in years) of the rock specimen that contains 60% of its original number of Uranium 238 atoms.
A rectangular fish tank measures 25 cm by 70 cm by 40 cm high. The tank is filled with water to a depth of 37 cm. What is the pressure at the bottom due to the water? What is the total force of the water on the bottom?
A ball is dropped from a height of 1.50m and rebounds to aheight of 1.20m. Approxiamtely how many rebounds will the ball make before losing 90% of its energy
A 0.20-kg particle moves along the x axis under the influence of a stationary object. The potential energy in SI unit is given by U(x) = 80.0x + 20.0x^2, find the turning points of the motion
A double convex lens (convex on both sides) is made of glass with an index of refraction of 1.65. What is the magnitude of the larger radius
During a shuffleboard game a disk is given an initial speed of 6.80m/s. Find how much time passes before the disk comes to rest
Suppose the first coil of wire illustrated in the simulation is wound around the iron core 9 times. Find the magnitude of the emf induced in the coil
A siren has a frequency of 750 Hz when it is at rest, whereas it has an apparent frequency of 800 Hz when it is moving toward a stationary observer
Coil 1 has L1 = 47 mH and N1 = 104 turns. Coil 2 has L2 = 68 mH and N2 = 215 turns. what mutually induced emf appears in that coil
A 290-mL spherical flask contains 0.075 mol of an ideal gas at a temperature of 345 K. What is the average force exerted on the walls
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