An astronaut is doing repairs on the international Space Station. She throws a hammer into space with a velocity of 3m/s. How much force is needed to keep the 5kg hammer moving at 3m/s through space?

What term do psychologists use to designate our personal awareness of feelings, sensations, and thoughts?

What do you think car designers do if the damage caused by a crash test is too severe?

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.