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Electrons in a photoelectric effect experiment emerge from a copper surface by a maximum kinetic energy of 1.10eV. What is the wavelength of the light? Answer must be in nm units.
a student m 97 kg runs at a velocity vi 2.85 ms before jumping on a skateboard. after jumping on the board the
A sled and rider with a combined mass of 50 kg are at the top of a hill 20 m above the level of ground below. After the push, what is the total mechanical energy of the sled and rider at the top of the hill
A Major League fastball is thrown at 92.9 mph and with a spin rate of 108 rpm. how many full turns does the ball make between release and catch
A roller coaster car rolls down a frictionless track, reaching a speed V0(Velocity original) at the bottom. by what factor must you increase the height of the track
a 6300-kg satellite is in a circular earth orbit that has a radius of 3.0 x 107 m. a net external force must act on the
A 50 kg person on a merry-go-round is traveling in a circle with a radius of 2 m at a speed of 6 m/s. What acceleration does the person experience
A glass window 0.45cm thick measures 80cm by 37cm. To compare the relative efficiency of air and glass as insulators, calculate the heat flows through this window
The tangential speed of a particle on a rotating wheel is 3.5m/s. how long will the particle take to make one revolution
At a point where an irrigation canal having a rectangular cross section is 18.3m wide and 3.70m deep, the water flows at 2.25cm/s. How deep is the canal at this point
question light of wavelength 631 passes through a diffraction grating having 485. what is the angle of the bright spot
Suppose that when you ride on your 8.10-kgbike the weight of you and the bike is supported equally by the two tires. what is your weight
Equak amounts of heat are added to equal masses of iron andsilver at the same initial temperature. Which metal will have the higher final temperature?
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