A car moving at 60 mph (27 m/s) encounters a resistive air frictional force of 200 Newtons. How much power must the engine generate to maintain this speed? If the engine is only 40% efficient, how much power is wasted in heat losses?

Isla’s change in velocity is 30 m/s, and hazel has the same change in velocity. which best explains why they would have different accelerations? isla had negative acceleration, and hazel had positive. isla had a different time than hazel. isla had positive acceleration, and hazel had negative. isla went a farther distance than hazel.

You can decrease the resistance of a length of wire by

Marvin records scientific data about lake superior. for which property has marvin forgotten to use an si unit of measurement? shore length high temperature low temperature annual precipitation