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Radio waves are electromagnetic waves that travel at a speed of 3.00*10 8 m/s, the speed of light. An AM radio station has an assigned frequency of 670 kHz, which means that the radio waves broadcast by the station are at this frequency. Discover the wavelength of these radio waves.
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
Positronium is a hydrogen atom with the proton replaced by a positron (like electron, but w/ positive charge). Calculate E1 for positronium.
a "wien" velocity filter uses an electric field and a magnetic field that are at right angles to each other. what is the energy of the proton beam
Your nephew swings a rock around his head on a massless string. If the string is 1.5 m long and is 12?degrees from the vertical, what is the period of the rock
A proton moving at 7.00 106 m/s through a magnetic field of magnitude 1.74 T experiences a magnetic force of magnitude 7.40 10-13 N. What is the angle between the proton's velocity and the field
An ideal gas is confined to a cylinder by a piston. The piston is slowly pushed so that the gas temperature remains at 20 degrees C. find the entropy change of the gas
A model rocket engine has an average thrust of 5.26 N. It has an initial mass of 25.9 g, which includes fuel mass of 13.4 g. What is the average exhaust speed of the engine
Halley's comet moves about the Sunin an elliptical orbit, with its closest approach to the Sun being0.59 A.U. and its greatest distance being 35 A.U. what is its speed when it isfarthest from the Sun
a block is connected between two springs on a frictionless, horizontally level track. the other end of each spring is respectively anchored to a vertical pin set at opposite ends of the track. what is the spring constant of the other spring
If Jupiter emitted just as much energy per second as it receives from the Sun, the average temperature of the planet's cloud tops would be about 107 K. compute what the average temperature must actually be
A 1.00 kg duck is flying overhead at 1.50 m/s. When a hunter firesstraight up. The 0.0100Kg bullet is moving 100m/s when it hits duckand stay lodged in the duck's body. What is the speed of the duckand bullet immediately after the hit?
q1. you are driving home from school steadily at 80 for 150. it then begins to rain and you slow to 50. you arrive home
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