College Physics
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Transcribed Image Text:12. A person of mass 82.0 kg is riding a ferris wheel of radius 13.5 m. The
wheel is spinning at a constant angular speed of 1.80 rpm. Determine the
force exerted on the rider by the seat at the top of the ferris wheel.
N
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- A. A large rotating cylinder uniformly increases in angular speed from rest to 0.170 rev/s in 28.0 s. What is its angular acceleration in radians per second per second?arrow_forwardAsaparrow_forwardA centrifuge rotor rotating at 9500 rpm is shut off and is eventually brought uniformly to rest by a frictional torque of 1.19 m. N. Part A If the mass of the rotor is 3.67 kg and it can be approximated as a solid cylinder of radius 0.0900 m, through how many revolutions will the rotor turn before coming to rest? Express your answer to three significant figures. Z II N Submit Part B 垢 ΑΣΦ Request Answer How long will it take? Express your answer to three significant figures and include the appropriate units. ?arrow_forward
- Two masses are connected by an ideal rope over a pulley. The rope has no mass or stretch. The pulley is frictionless but has mass Mp and radius R. M, is on an approximately frictionless slope with angle 0 =19°. %3D The masses are all equal, M1 = M2 Mp. %3D The pulley can be approximated by a hoop with I = Mp R2 %3D If the masses are released from rest (not moving), what is their speed after M2 has fallen a distance h = 2.4 m?arrow_forward5. A block m= 5kg sits on a horizontal surface with coefficient of u = 0.2 between the block and the surface. A string runs from this block over a cylinder wheel of radius R = 10 cm and mass m, =2 kg and is attached to a hanging 7 kg friction mass. a. Find the acceleration of the masses, the angular acceleration of the wheel, and the tension in the string on each side. b. Use acceleration to find the velocity after block M moved down by h= 0.5m Marrow_forwardMacmillan Learning The Atwood machine consists of two masses hanging from the ends of a rope that passes over a pulley. Approximate the pulley as a uniform disk with mass m₂ = 5.13 kg and radius rp=0.450 m. The hanging masses are m = 20.7 kg and mg = 12.7 kg. Calculate the magnitude of the masses' acceleration a and the tension in the left and right ends of the rope, 7₁, and TR. respectively. a= TL = TR = 2 m/s N m₁ 111arrow_forward
- A puck of mass m = 1.10 kg slides in a circle of radius r = 19.0 cm on a frictionless table while attached to a hanging cylinder of mass M = 4.10 kg by a cord through a hole in the table. What speed keeps the cylinder at rest?arrow_forwarda. What is the magnitude of acceleration of the block? b. What is the magnitude of the tension force from the block on the cylinder?arrow_forwardA ceiling fan with 83-cm-diameter blades is turning at 69 rpm. Suppose the fan coasts to a stop 25 s after being turned off. Part A What is the speed of the tip of a blade 10 s after the fan is turned off? Express your answer to two significant figures and include the appropriate units. V = Submit Part B μA Value Request Answer Units Number of revolutions = Through how many revolutions does the fan turn while stopping? Express your answer using two significant figures. ? ΠΑΣΦ ?arrow_forward
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