Which of the following best describes acceleration? acceleration is the rate of change of force of an object. acceleration is the rate of change of the direction of an object. acceleration is the rate of change of velocity of an object. acceleration is the rate of change of position of an object.?

Matt is driving down 7th street. he drives 150 meters in 18 seconds. assuming he does not speed up or slow down, what is his speed?

How many molecules are present in 3 mols of silicon dioxide (sio2)?

Aclarinetist, setting out for a performance, grabs his 3.350 kg clarinet case (including the clarinet) from the top of the piano and carries it through the air with an upward force of 24.65 n. find the case's vertical acceleration. indicate an upward acceleration as positive and a downward one as negative.