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Question: In an old-fashioned amusement park ride, passengers stand inside a3.0-m-tall, 5.0-m-diameter hollow steel cylinder with their backsagainst the wall. The cylinder begins to rotate about a verticalaxis. Then the floor on which the passengers are standing suddenlydrops away! If all goes well, the passengers will stick to the wall and not slide. Clothing has astatic coefficient of friction against steel in the range 0.60 to1.0 and a kinetic coefficient in the range 0.40 to 0.70.
A) What is the minimum rotational frequency, in rpm, for which theride is safe?
a helicopter starting from rest accelerates straight up from the roof of a hospital. the lifting force does work in
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A beam of light with red and blue components of wavelengths670 nm and 425 nm, respectively, strikes a slab of fused quartz atan incident angle of 30o. what is the index of refraction of the blue light
An electron initially at rest recoils after a head-on collision with a 5.94-keV photon. Determine the kinetic energy acquired by the electron
A toroidal solenoid has 550 turns, cross-sectional area 7.00cm2 , and mean radius 4.90cm, Calcualte the coil's self-inductance
A positive charge of 1.000 C is located in a uniform field of 9.50×104 N/C. A negative charge of -0.500 C is brought near enough to the positive charge that the attractive force among the charges just equals the force on the positive charge due to th..
Before starting this problem, review Conceptual. The force vector A has the magnitude of 75.0 newtons (N) and points due east. The force vector B has a magnitude of 101 N and points 72.9 ° north of east.
A horizontalforce of 190 N is applied toa stationary wooden box in one direction, and a 700 N horizontal force is applied in theopposite direction. What additional force is needed for the box toremain stationary?
In an exercise to heat up some cold, hard cash, a coin with a massof 6.25 g that has been kept in the freezer at a temperature of-18.05 deg-C is taken out and placed into a thermos containing 14.3ml of warm water at 35.00 deg-C.
A piston-and-cylinder machine contains 0.5 kg of steam at 60 bar and 360 C. The steam expands adiabatically to 1.5 bar and 160 C.
Two electrodes are placed in a calcium chloride solution and a potential difference is maintained between them. what is the current in the solution
question in the 1950s an experimental train that had a mass of 2.00 104 kg was powered across a level track by a jet
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