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Ultraviolet light is shone on a particular metal and the stopping potential is measured at the same time. It is found that 2.64 V is needed to stop all the electrons when the wavelength of the light is 295 nm, and 4.76 V for a wavelength of 214 nm.
What is the work function of the metal?
What is Planck's constant based on this measurement?
You set up an experiment with two polarizer screens on an optical bench and collect data for the intensity of the light at the detector as you vary the relative angle between the transmission axes of the polarizers. What is intensity of the light s..
a ball (mass=m) moving in the positive x direction with speed v collides with a block (mass=M) initially at rest, compute the mass of the block
A soccer ball lying on the ground is kicked with an initial velocity of 10.0 m/s at an angle of 37 degrees above the horizontal. How far over does it land on the ground?
A car that is traveling at 25.0 m/s is 42.5 m away from a wall. what is the magnitude of the cars acceleration
A 64 kg skier coasts up a snow-covered hill that makes an angle of 25° with the horizontal, What is the magnitude of the kinetic frictional force
A meter stick supported at the 50 cm mark has masses of 300 g & 200 g hanging from it at the 10-cm & 60-cm mark, respectively. Where should we hang a third, 400-g mass to keep the meter stick balanced?
You are standing 3.0 m from a convex security mirror in a store. Estimate the radius of curvature of the mirror
A particle has an acceleration of 6.39 for 0.28. At the end of this time the particle's velocity is 9.31 .What was the particle's initial velocity.
What is the angle of total internal reflection (critical angle) for a glass-to-water interface
Four equal charges of +2.5×10-6 C are placed on the corners of one face of a cube of edge length 15.0 cm. A charge of -2.5×10-6 C is placed at the center of the cube. What is the magnitude of the force on the charge at the center of the cube?
An uncharged spherical conducting shell surrounds a point charge - q at its centre. Then a charge +3q is placed on the outside surface of shell.
Consider a game of billiards. The cue ball has an initial speed v0 before it strikes the eight ball which was previously at rest, Find the nal speeds of both the cue ball and the eight ball, assuming that the collision was perfectly elastic
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