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An object rotates following a circular path with a radius of 2 m and a period of 5 s, calculate a) its linear velocity, b) its centripetal acceleration.
During spin-dry cycle of a washing machine, the motor slows from 90 rad/s to 30 rad/s while the turning the drum through an angle of 180 radians. What is the magnitude of the angular acceleration of the motor.
A small object with a mass of 250mg carries a charge of 40.0 nC and issuspended by a thread between the vertical plates of aparallel-plate capacitor. what is the potential difference between the plates
An ice skater is gliding horizontally across the ice with an initial velocity of +6.40 m/s. How much time elapses before her velocity is reduced to +2.92 m/s
You sing into a well and find that the well resonates at frequencies of 176 Hz and 208 Hz with no resonances between these two frequencies. What is the frequency of the fundamental mode?
The entire assembly is rotating with an angular velocity V0 when the wire breaks. Determine the angular velocity of the assembly after the panels have come to rest against the plate.
A high-performance sports car can go from 0 to 100 mph in 7.8 s. (Assume the car travels in the positive direction. What is the car's average acceleration
What is the use of the fan blades in a commercial jet plane, what is its function?
A uniform thin rod of length 0.778 m is hung from a horizontal nail passing through a small hole in the rod located 0.043 m from the rod\'s end
what is the direction of Daves displacement for entire trip
A frictionless pulley has the shape of a uniform solid disk of mass 2.1 and radius 10. A 1.10 stone is attached to a very light wire that is wrapped around rim of pulley and the system is released from rest.
When the tire surface is rotating at the maximum speed of 12 m/s stone flies out of the tread. The magnitude FN of the normal force that each side of the tread channel exerts on the stone is 1.8 N. suppose that only static friction supplies centripet..
A 20 kg block rests on a variable ? frictional incline as shown below. Answer the questions concerning this block on the variable incline. Which of the following statements are true regarding the stationary block on the incline?
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