11. A car travels 500 miles at an average speed of 54.9 mi/hr. How long will the trip take?

The process in which the nucleus of an atom splits into two lighter atoms, releasing a large amount of energy is nuclear

True or false: the cycle of seasons on the earth is caused by the tilt of the earth on its axis toward and away from the sun.

The x-coordinate of a particle in curvilinear motion is given by x = 3.1t3 - 4.9t where x is in feet and t is in seconds. the y-component of acceleration in feet per second squared is given by ay = 2.3t. if the particle has y-components y = 0 and vy = 5.0 ft/sec when t = 0, find the magnitudes of the velocity v and acceleration a when t = 1.8 sec. sketch the path for the first 1.8 seconds of motion, and show the velocity and acceleration vectors for t = 1.8 sec. answers: v = ft/sec a = ft/sec2