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Two non-relativistic particles, an electron of mass me and a proton of mass Mp, have equal de Broglie wavelengths. Find the ratio of the kinetic energy of the electron to that of the proton?
A balance beam has two clockwise torques applied, 22N @ 5.5m, and 110N @ 2.4 m. Balance is achieved with a 55N force. How far is that force from the balance point
A diver can change his rotational inertia by drawing his arms and legs close to his body in the tuck position, what was his angular velocity when he left the diving board
q1. an airplane is flying with a velocity of 83.0 at an angle of 25.0 above the horizontal. when the plane is a
A 40.0-N crate starting at rest slides down a rough 6.00-m-long ramp, inclined at 30.0° with the horizontal. What is the speed of the crate at the bottom of the incline
A 1.40 kg block slides with a speed of 0.950 m/s on a frictionless horizontal surface until it encounters a spring with a force constant of 734N/m. The block comes to rest after compressing the spring 4.15 cm.
a diffraction grating has 350 linesmm and is illuminated at normal incidence by white light. a spectrum is formed on a
A bedroom bureau with a mass of 40 kg, including drawers and clothing, rests on the horizontal floor. compute the static friction force on the bureau initially
Light from an argon laser strikes a diffraction grating that has 5345 grooves per centimeter. Determine the wavelength of the laser light
50kg ball tied to the end of a 1.3m light cord is revolvedin a horizontal plane with the cord making a 30 degree angle with the vertical
A waiter holds two plates of food in one hand. Hiss forearm has a mass of 2.2 kg and the center of mass of his forearm is located 13 cm from his elbow joint. find the torque produced by the mass of the two plates
a distant galaxy emits light that has a wavelength of 550.5 nm. on earth the wavelength of this light is measured to be
Grace is playing with her dolls and decides to give them a ride on a merry-go-round. If the doll is13cm from the center of the spinning turntable platform, how fast (in m/s) is the doll moving
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