David drives and slows to a stop when he sees a stop sign. A graph of his velocity over time is shown below. Velocity
m
-
20:
15+
ra
10+
Pro
5-
Tea
Time (s)
10
15
20
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Which of the following are properties of mechanical waves? check all that apply ⭕️ particles of the medium move back and fourth, but do not move with the wave. ⭕️ the particles of the medium always move parallel to the wave motion. ⭕️ wave motion begins with a disturbance in the medium. ⭕️ waves transport energy from a source outward, away from the source.

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

Gordon is going for a run through the park, but it is cold outside. the low outside temperature could affect his personal safety.