A 2000 kg truck moving at a speed of 25 m/s runs into a barrier. If it takes the truck 1.5 seconds to come to a complete stop, what is the magnitude of the force exerted on the truck during the collision?

Asmall object with mass 0.200 kg swings back and forth on the lower end of a light rope that is 3.00 m long. the upper end of the rope is attached to the ceiling. as the object swings through its lowest position, where the rope is vertical, the speed of the object is 5.80 m/s. at this point in the motion, what is the tension in the rope? (use g = 9.80 m/s2.)

What is the name of the perceived change in a sound wave’s frequency due to motion between the observer and the sound source?

Based on details in the riddle of the rosetta stone, which statement best describes jean-baptiste fourier’s influence on jean-françois champollion?