Agirl uses a skateboard to travel 65 meters in 25 seconds. what is her average speed?

Asun-sized star will spend most of its lifetime as a: white dwarf red giant protostar main-sequence star

What are segments of dna that code for a particular trait. a combination of dna and proteins make up what

A1,700kg car is being used to give a 1,400kg car a push start by exerting a force of 140n the impulse on the smaller car during the 30.0s of contact is +670kg*m/s. what is the impulse of the smaller car on the larger car? -814 kg*m/s 0kg *m/s -670kg*m/s -550kg*m/s