Noah runs 30 feet north, 30 feet west, and then 30 feet south. What distance did he cover? What was his displacement?

Asmall blob of putty of mass m falls from the ceiling and lands on the outer rim of a turntable of radius r and moment of inertia i0 that is rotating freely with angular speed ω0 about its vertical fixed-symmetry axis. (use any variable or symbol stated above as necessary.)

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

The roller coaster from problem #1 then tops a second hill at 15.0 m/s, how high is the second hill? 91.5 m 79.2 m 80.0 m 68.5 m