Suppose you push a hockey puck of mass m across frictionless ice for a time 1. 0 s, starting from rest, giving the puck speed v after traveling distance d. You repeat the experiment with a puck of mass 2m.

Late at night some traffic signals change patterns and become ?

Two technicians are discussing how to test a car's exhaust by holding a small piece of paper within an inch of the tailpipe mouth. technician a says that if the paper is vibrating due to a "puffing" output from the tailpipe, this signals a smoothly running engine. technician b says that if the paper is being drawn toward the tailpipe, this could indicate burned exhaust valves. who is correct? a. technician b b. both technicians a and b c. technician a d. neither technicians a or b

Susie ran a race. she ran 55 miles an hour, and the race took her tt hours to complete.