Daniel steps on the gas pedal of his car, and the engine increases its performance from zero to 2700 rpms (rotations per minute). What are the frequency and period? [Hint: frequency is cycles per second.]

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?

Explain earth's motion, using the terms "precession" and "rotation" in your answer.

Automobile fuel efficiency is often measured in miles that the car can be driven per gallon of fuel (mpg). heavier cars tend to have lower fuel efficiencies (lower mpg ratings). which variable (weight or fuel efficiency) is most naturally considered the explanatory (predictor) variable in this context?