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A spaceship is emitting 500-nm light and traveling toward us at 10% the speed of light. We detect: A. Radio waves B. 450-nm light C. 500-nm light D. 550-nm light E. Gamma rays
A professional golfer is examining a video of a practice swing. The high-speed footage shows that his club is in contact with the ball (which was initially at rest on the tee) for only 0.471 milliseconds, and the radar gun clocks the speed of the ..
When light with a wavelength of 206 nm is incident on a certain metal surface, electrons are ejected with a maximum kinetic energy of 2.57 x 10-19 J. find the wavelength (in nm) of light that should be used to double the maximum kinetic energy of ..
Gas is contained in an 6.4 L vessel at a temperature of 20°C and a pressure of 8.2 atm. Determine the number of moles of gas in the vessel
A proposed space station includes living quarters in a circular ring 60.5 m in diameter. At what angular speed should the ring rotate
The index of refraction for violet light in plastic is greater than that for red light by 0.0410. Delaying any rounding off of calculations until the very end, find the index of refraction for violet light in plastic.
Find the speed of the car when brakes were applied.
A 2500 kg truck traveling north at 45 km/h turns east and accelerates to 56 km/h. What is the change in the truck's kinetic energy
Light is shining perpendicularly on the surface of the earth with an intensity of 680 W/m2. find the number of photons per second per square meter
People who do chin-ups raise their chin just over a bar (the chinning bar), supporting themselves only by their arms. Find the force his arms must exert on him during the accelerating part of the chin-up
A 220 g top spinning at 14 rev/s makes an angle of 30° to the vertical and precesses at a rate of 1 rev per 8.0 s. what is the moment of inertia of the top
A major league pitcher of mass 100kg is standing on a skateboard of mass 2.00kg, holding a baseball, What is the speed of the skateboard
Imagine that you send out a light flash at t=6.0 s as registered by your clock, At what time did your brother actually make this silly face and How far is your brother away from you
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