In the red shift of radiation from a distant galaxy, a certain radiation, known to have a wavelength of 530 nm when observed in the laboratory, has a wavelength of 566 nm. (a) What is the radial speed of the galaxy relative to Earth

Match the words or actions and their definition. 1. the rate of doing work 2. a machine that changes motion 3. the force that is used to generate electricity 4. 550 foot-pounds per second 5. the force that makes things fall toward the earth 6. work in > work out 7. metric measurement of work 8. the product of force times distance water falling from a dam newton-meter gravity work windmill power the work principle 1 horsepower