A car horn creates a 595 Hz tone at rest. Two cars pass on the
street, each going 20.0 m/s; the
first car honks. What frequency
does the other car hear after they
pass each other?
(Speed of sound = 343 m/s)
(Unit = Hz)

Part a constants huck finn walks at a speed of 0.60 m/s across his raft (that is, he walks perpendicular to the raft's motion what is huck's velocity (speed and direction) relative to the river bank? express your answer to three significant figures and include the appropriate units. relative to the shore)

Point charges q1 = 51 µc and q2 = −27 µc are placed 1.0 m apart, with q2 on the right. what is the force (in n) on a third charge q3 = 19 µc placed midway between q1 and q2? (assume the positive direction is to the right. indicate the direction with the sign of your answer.)

Sort the images based on whether there's a force of attraction or repulsion between the magnets shown. attraction repulsion