Three masses are rigidly attached to a light board in the xy-plane. A 2kg mass is at (-4m, 2m), a 3kg mass is at (0,-6m) and a 5kg mass is at (3m, 0). If it is rotated about the y-axis at 1.4rad/s, then what is its rotational kinetic energy?

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

Asmall, positively charged ball is moved close to a large, positively charged ball. which describes how the small ball likely responds when it is released? it will move toward the large ball because like charges repel. it will move toward the large ball because like charges attract. it will move away from the large ball because like charges repel. it will move away from the large ball because like charges attract.

Calculate the work done by an external agent during an isothermal compression of 1.00 mol of oxygen from a volume of 22.4 l at 10∘c and 1.0 atm pressure to 16.8l