Multiple-concept example 4 deals with a situation similar to that presented here. a marble is thrown horizontally with a speed of 17.1 m/s from the top of a building. when it strikes the ground, the marble has a velocity that makes an angle of 39 ° with the horizontal. from what height above the ground was the marble thrown?

During which interval are the persons represented by the graph not moving? a) 0 to 0.5 hrs b) 1.5 to 2 hrs c) 2 to 2.5 hrs d) 4.5 to 5 hrs

Amichelson interferometer operating at a 600 nm wavelength has a 3.02-cm-long glass cell in one arm. to begin, the air is pumped out of the cell and mirror m2 is adjusted to produce a bright spot at the center of the interference pattern. then a valve is opened and air is slowly admitted into the cell. the index of refraction of air at 1.00 atm pressure is 1.00028.how many bright-dark-bright fringe shifts are observed as the cell fills with air?

Name two kinds of practical electric pumps.