which point of the wave shows a wavelength measured from the beginning of one for a fraction of two the beginning of the next refraction ​

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.)

You've already seen the value of 9.8 in this lesson. what's this value called? what quantity does it represent?

Acar travels 40m in 8 seconds find the car speed