Aperson looking out the window of a stationary train notices that raindrops are falling vertically down at a speed of 3.84 m/s relative to the ground. when the train moves at a constant velocity, the raindrops make an angle of 25° when they move past the window, as the drawing shows. how fast is the train moving?

How have the competing explanations' experiments on atoms affected the development of the atomic model?

When you turn on a battery-operated device, an electrical circuit is

At a certain instant after jumping from the airplane a, a skydiver b is in the position shown and has reached a terminal (constant) speed vb = 52 m/s. the airplane has the same constant speed va = 52 m/s, and after a period of level flight is just beginning to follow the circular path shown of radius ρa = 2330 m. (a) determine the velocity and acceleration of the airplane relative to the skydiver. (b) determine the time rate of change of the speed vr of the airplane and the radius of curvature ρr of its path, both as observed by the nonrotating skydiver.