Which lines are parallel to the graph of 4x – y = 6? check all that apply.

x – 4y = –12

y – 2 = –4(x + 1)

y + 1 = 4(x – 2)

y = 4x + 11

y = x – 3

8x – 2y = 6

Aboxcar traveling at 12 m/s approaches a string of 5 identical boxcars sitting stationary on the track. the moving boxcar collides and links with the stationary cars and they all move off together along the track. what is the final speed of the cars immediately after the collision? (you may take the mass of each boxcar to be 18,537 kg.)

What is the angular momentum of the bar about the axle?

You throw a small rock straight up from the edge of a highway bridge that crosses a river. the rock passes you on its way down, 7.00 s after it was thrown. what is the speed of the rock just before it reaches the water 28.0 m below the point where the rock left your hand? ignore air resistance.