A100.0 g mass is placed on the meter stick 10.0 cm from the fulcrum. an unknown mass is positioned 3.0 cm from the fulcrum to balance the system. the mass of this unknown object is : (a) 0.11 kg (b) 0.22 kg (c) 0.33 kg (d) 0.44 kg

One object has a mass of 1 kg and another object has a mass of 3 kg. if the speeds are the same, which of the following is true about their kinetic energy?

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.

Why does lightning travel from clouds to the ground?