Review. you are sitting in your car at rest at a traffic light with a bicyclist at rest next to you in the adjoining bicycle lane. as soon as the traffic light turns green, your car speeds up from rest to 47.0 mi/h with constant acceleration 7.00 mi/h/s and thereafter moves with a constant speed of 47.0 mi/h. at the same time, the cyclist speeds up from rest to 21.0 mi/h with constant acceleration 12.00 mi/h/s and thereafter moves with a constant speed of 21.0 mi/h.[hint: this is a great problem to use some graphs to you visualize what is going on. there are more than 2 important clock readings in this problem.]

Which device uses ac current to operate?

If you have a bowl with six apples and you take away four, how many do you have? anyone take a guess and post it. lol getting rid of my account might as well do it with some fun

The lights used by mark watley (played by matt damon) during the film the martian seem to be metal halide lamps. metal halide lamps are filled with vaporized mercury and metal-halogen compounds. when an electric current is passed through the lamp, the tube begins to glow a bright white/blue color. if you were to pass this light through a prism to separate the individual light frequencies, you would see a rainbow just as you would if using natural sunlight because of the complexity of the metal halide gas and the vast amount of possible electron transitions. (the study of light in this way is known as spectroscopy and allows astronomers to know exactly what atoms compose distant stars, simply by looking at the light they emit. the spectral lines an atom produces uniquely identifies that atom just like a fingerprint uniquely identifies a person. the momentum equation and energy equation that we have used above can be combined to give the following equation: c = e p where again p is the phonon momentum, e is the photon energy and c is the speed of light. when you divide the photon energy found in #6 by the photon momentum found in #4, do you get the speed of light? (if not, check your work for questions #4 through #6). yes no