Acar is traveling 12m/s. it approaches a stop sign and decelerates at 4.0m/s squared. how long does it take the car to stop?

Which term best describes the phrase “something that happens”?

If 21.2 kcals of energy is released by this reaction, how many kj does the reaction release? (1 cal 4.184 j)

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.