Use Newton’s first law of motion to make a claim about why air bags in cars are important during head-on collisions. Summarize the motion of a passenger during a collision with and without an airbag to support your claim and explain your reasoning.

When applying kirchhoff's rules, one of the essential steps is to mark each resistor with plus and minus signs to label how the electric potential changes from one end of the resistor to the other. the circuit in the drawing contains four resistors, each marked with the associated plus and minus signs. however, one resistor is marked incorrectly. which one is it?

Ahot-air balloonist, rising vertically with a constant speed of 5.00 m/s releases a sandbag at the instant the balloon is 40.0 m above the ground. after it is released, the sandbag encounters no appreciable air drag. compute the velocity of the sandbag at 0.250 s after its release.

Suppose a comet has an orbital period of 309.1 years around the sun. what is it’s average distance from the sun?