Aball is thrown straight upward at 17 m/s.
a) how long does it take to reach its highest point?

Arrange the images in order to show how lake-effect snow occurs.

Click the game tab at the bottom of the simulation and select level 1. (there is no seesaw balance for this part of the activity.) balance the first equation, and click check to see if you got it right. if you can’t balance it in the first try, you can try again. work through the five equations for level 1. click continue to go on to level 2, and later level 3. each level is more difficult than the one before. keep trying until all the equations are balanced. in one or two sentences, describe how you did in the balancing game. in a few more sentences, explain one strategy you learned for balancing more complex equations.

Scientific models are based on current knowledge, which can limit their effectiveness when new discoveries are made.