A track runner ran 2 laps around the track and stopped halfway through his 3rd. If a track is 400 meters long. How far did the athlete run?*
800 meters
O 1000 meters
400 meters
O 1200 meters

The car hoist allows the car to be driven onto the platform, after which the rear wheels are raised. if the loading from both rear wheels is 1380 lb, determine the force in the hydraulic cylinder ab. neglect the weight of the platform itself. member bcd is a right-angle bell crank pinned to the ramp at c. the force is positive if in tension, negative if in compression.

The star betelgeuse is about 600 light-years away. if it explodes tonight, a. we'll know because debris from the explosion will rain down on us from space.b. we'll know it immediately because it will be brighter than the full moon in the sky.c. we won't know about it until 600 years from now.d. none of the above.

The frequency of the fundamental of the guitar string is 320 hz. at what speed v do waves move along that string?