A train moving west with an inti velocity of 20 m/s accelerates at 12 m/s fir 10 seconds. How much does the train moves in distance of meters

Which quantities are scalars? choose all that apply a.distance b.speed c. acceleration d.velocity

Examine the nuclear reacti why is this classified as a nuclear reaction rather than a chemical reaction? it is not balanced. a new compound is formed. a change has occurred in a nucleus. a new element has been formed.

Suppose that 27 j of work is needed to stretch a spring from its natural length of 6 m to a length of 9 m. (a) how much work is needed to stretch the spring from 12 m to 14 m? j (b) how far beyond its natural length will a force of 78 n keep the spring stretched?