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A merry-go-round is 11m in diameter. The outermost horses are set at a diameter of 10m. If the merry-go-round spins at 2 RPM what is the tangential speed of the outermost horses?
Trucks can be run on energy stored in a rotating flywheel, with an electric motor getting the flywheel up to its top speed of 611 rad/s. how many minutes can it operate between chargings
on a sphere with radius a there is an electric charche sigmasigmazerocostheta. determine the electrostatic potential
A wheel with a tire mounted on it rotates at the constant rate of 2.59 times a second. A tack is stuck in the tire at distance 31.7 cm from the rotation axis. Noting that for every rotation the tack travels one circumference, find the tack\'s tangent..
an oil film n 1.46 floating on water is illuminated by white light at normal incidence. the film is 283 nm thick.a
A 2000kg car accelerates from 20 to 60km/h on an uphill road. Determine the work done by the engine
Think about an atomic nucleus to be equivalent to a one-dimensional infinite potential well with L = 1.1 x 10-14 m, a typical nuclear diameter. What would be the ground-state energy (in GeV) of an electron if it were trapped in such a potential well?
A gas expands while 502 J of energy is added to it as heat. The expanding gas does 422 J of work on its surroundings.
While warming up for a match, a tennis player stands at the baseline of the court, 11.9 m away from the net, how far below the top of the net does it hit
Standing at a crosswalk, you hear a frequency of 520 Hz from the siren of an approaching police car. After the police car passes, observed frequency of the siren is 455 Hz. Establish the car's speeds from these observations.
the starter motor of a car engine draws a current of 200 from the battery. the copper wire to the motor is 6.0 in
A source delivers an AC voltage of the form ?v = 96.2 sin (66?t), obtain the frequency of the source
1. How much more light does one collect with a 4-meter diameter telescope in 0.5 minutes than with a 0.5-meter diameter telescope in 4 minutes?
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