Which of the following is an example of a lever in your school supplies? siss
ors pen paper or ruler

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.)

Which of the following is not a part of the respiratory system? a. pharynx b. trachea c. pancreas d. larynx

The slope of a velocity time graph over any interval of time gives the during that interval