The fastest plane ever made, the lockheed sr71, was able to travel 2200 miles per hour. based on this speed, how far can it travel in 2 hours, 3 hours, and 5 hours?

Distinguish between a transverse wave and a longitudinal wave.

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

The long handle on a rake is a(n) a. lever b. screw c. wedge d. inclined plane