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Q. A bicycle has wheels with a diameter of 0.59m. It accelerates uniformly and the rate of rotation of its wheels increases from 183 rpm to 285 rpm in a time of 19.7 s. Determine the linear (tangential) acceleration of the rim of the bicycle's wheels (in the reference frame of a cyclist riding the bike).
As olenoid with 600 turns has a radius of .04 m and is 40cm long. If this solenoid carries a current of 12 A. what is the magnitude of the magnetic field at the center of solenoid.
A certain freely falling object requires 1.10s to travel the last 32 m before it hits the ground. From what height above the ground did it fall.
what is the final equilibrium temperature of the system?
A 200g mass on the end of a spring is pulled back 3 cm and released. There is a coefficient of friction between the table and mass of 0.7. The resonant frequency is 7.071 rad/sec.
A skier wears a jacket filled with goose down that is 15 mm thick. Another skier wears a wool sweater that is 7.00 mm thick. Both have same surface area.
Two speakers, one directly behind the other, are each generating a 429-Hz sound wave. What is the smallest separation distance between the speakers that will produce destructive interference at a listener standing in front of them? Take the speed of ..
A train is travelling up a 4.5 degree incline at a speed of 3.25 m/s when the last car breaks free and begins to coast without friction. a) How long does it take for the last car to come to rest momentarily? b) How far did the last car travel befo..
Two point charges 2.4 and 6.50 are 0.10 apart. Point is midway between them; point is 8.00×10-2 from and 6.00×10-2 from . Take the electric potential to be zero at infinity. Find out the work done by the electric field on a charge of 2.50 that tra..
One mole of an ideal gas at 27 °C is expanded isothermally from an initial pressure of 3 atm to a final pressure of 1 atm in two ways. (a) reversible, and (b) against a constant external pressure of 1 atm. find q, w, ΔU, ΔH, ΔSsys, ΔSsurr, ΔStotal..
how long does the block remain in contact.
A bucket of mass 1.50 is whirled in a vertical circle of radius 1.20. At the lowest point of its motion the tension in the rope supporting the bucket is 25.00 N. Find out the speed of the bucket. How fast must the bucket move at the top of the circle..
An electric scooter has a battery capable of supplying 140 Wh of energy. If friction forces and other losses account for 60 percent of the energy usage, what altitude change can a rider achieve while driving in hilly terrain, if the rider and scooter..
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