Aferry boat sails east across a lake at 10km/h. a woman is standing still on the ferry boat. what is her speed relative to the boat

Sarah and michelle work at a tech company that designs exercise apps. sarah tells michelle she has heard that james, their supervisor, interviewed with a competitor and may be leaving the company, which would open up a management position. what kind of power is sarah exerting?

Adelivery truck leaves a warehouse and travels 2.60 km north. the truck makes a left turn and travels 1.25 km west before making another right turn to travel 1.40 km north to arrive at its destination. what is the magnitude and direction of the truck's displacement from the warehouse?

Holes drilled several kilometers into earth’s crust provide direct evidence about earth’s interior in the form of