I rode my bicycle to grandmother's house at 6km/h in a flat road for 5 minute before reach a hill. i went
2km/h up the hill for 3 minute i met a friend and stooped to talk for 5 minute. i went on at 2km/h to my grandmother's house. drow (plot ) the v Against t graph for this motion.

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.)

Choose all the answers that apply. our solar system: is in a spiral galaxy no longer includes pluto is made mostly of empty space is in the andromeda galaxy is the only known system that supports life

Decreased sensitivity to an unchanging stimulus is known as