If the x-component of velocity is 27m/s and the y-component of velocity is -23 m/s, what is the resultant vector?

The of a machine determines its "usefulness." a. input force b. output force c. mechanical advantage

Ahot-air balloonist, rising vertically with a constant speed of 5.00 m/s releases a sandbag at the instant the balloon is 40.0 m above the ground. after it is released, the sandbag encounters no appreciable air drag. compute the velocity of the sandbag at 0.250 s after its release.

In a good thermo flask the main cause of heat loss is