A girl in a bumper car (with a combined mass of 230 kg) is traveling at 3.8 m/s due north. A boy in a bumper car (with a mass of 220 kg) also is traveling due north ahead of the girl but is moving at only 1.5 m/s. The girl catches the boy’s bumper car and they have a collision. Afterward, the boy is traveling at 3.1 m/s north. What is the magnitude and velocity of the girl’s bumper car? (Round your answer to the nearest tenth.)

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.

Global climatic patterns are changing because of the melting of polar ice caps. the melting of polar ice caps is an example of the interaction between the atmosphere and cryosphere cryosphere and geosphere hydrosphere and geosphere biosphere and cryosphere

A90db sound wave strikes an eardrum whose area is 5.0×10^-5m^2. how much energy is absorbed by the eardrum per second