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Problem: In an amusement-park ride, riders stand with their backs against the wall of a spinning vertical cylinder. The floor falls away and the riders are held up by friction. The acceleration of gravity is 9.81 m/s2. If the radius of the cylinder is 8 m,
Part A: Find the minimum number of revolutions per minute necessary when the coefficient of static friction between a rider and the wall is 0.6. Answer in units of rev/min
I need help to find the minimum number of revolutions per minute necessary.
Two identical conducting spherical shells S1 and S2 carry charges Q1 and Q2, respectively, Determine the total charge on S1 and S2 after they are separated
Water moves through a constricted pipe in steady, ideal flow. At the lower point shown in the figure below, the pressure is P1 = 2.00 104 Pa, Find the volume flow rate through the pipe
A weightless spring of force constant 2.50 N/cm is 15.0 cm long when nothing is attached to it. It is now utilized to pull horizontally on a 12.5 kg box on a smooth horizontal floor. You observe that the box starts from rest and moves 96.0 cm through..
During a lightning storm, it is best not to be the highest pointaround (like standing up in a flat open area) or standing nearsomething tall (like a tree). Why not?
A 2500mL- flask is initially open to air at 24 celsius and 1 atm pressure. How many moles escape when the air is released
charge is distributed uniformly throughout the volume of an infinitely long cylinder of radius r 4.00times10-2 m. the
question the x y and z components of a magnetic field are bx 0.12 t by 0.14 t and bz 0.17 t. a 25 cm wire is
A projectile is shot from the edge of a cliff 115m above ground level with initial speed of 65m/s at an angle of 35 degrees with the horizontal.
A proton (rest mass 938.3 MeV/c^2) is confined to a small region of space 2.0 nm wide. What is the uncertainty on its speed due to this confinement
The time constant of an RL circuit with L = 25 mH is five times the time constant of an RC circuit with C = 40 µF. What is the time constant of the RL circuit
A 40-kg girl is bouncing on a trampoline. During a certain interval after leaving the surface of the trampoline, kinetic energy decreases to 240J from 470J. How high does she rise during this interval? Avoid air resistance.
a damped harmonic oscillator involves a block (m=2kg) ,a spring (k=10N/m)and a damping force F=-rv. How much energy is lost during these five cycles
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