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The work function of a certain metal is 3.00 eV. What is the kinetic energy of a photoelectric in both "J" and "eV" for an incident photon of wavelength 400.0 nm?
A steel beam that is 5 m long weighs 320N. It rests on two supports, 3.00 m apart, with same amounts of the beam extending from each end. Suki, who weighs 525N, stands on the beam in the center and then walks toward one end. How close to the end c..
a typical maximum acceleration for a car is about 8 m/s^2, A sports car traveling at 20m/s accelerates at this rate for 1.25 seconds
Two converging lens with a focal lengths of 10 cm are separated by 10 cm. What is the position of the final image
An 1800W toaster, a 1.3kW electric frying pan, and a 120 W lamp are plugged into the same 35A, 140V circuit. what is the resistance of each device
A dentist's drill starts from rest. After 3.20 s of constant angular acceleration it turns at a rate of 2.8 104 rev/min. Find the drill's angular acceleration
The relationship between angular frequency and wavenumber for a deep water wave is: ?=gk????, what is the group velocity of the wave
One end of a horizontal rope is attached to a prong of an electrically driven tuning fork that vibrates at a frequency 112 Hz. What is the speed of a transverse wave on the rope
A golf ball with a coefficient of restitution of 0.78 is tossed horizontally at 0.9 m/s from a height 1.5 m above the level ground. What is the maximum height of the first bounce of the golf ball
A 245 kg person lays on board that is supported only on the ends and that has a mass of 12.0 kg. what is the force on either side where the board is supported
What is the difference between a vector's x scalar component, How do equilibrant and resultant vectors relate to each other
A 57.4 g sample of a conducting material is all that is available. The resistivity of the material is 1.05 E-7 and the density is 6.09 g/cm^3. What will the diameter of the wire be
Suppose the temperature of 4.56 L of ideal gas drops from 359 K to 275 K. Find the number of moles of gas
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