Abumper car with mass m1 = 118 kg is moving to the right with a velocity of v1 = 4.2 m/s. a second bumper car with mass m2 = 81 kg is moving to the left with a velocity of v2 = -3.4 m/s. the two cars have an elastic collision. assume the surface is frictionless. 1)what is the velocity of the center of mass of the system? in a new (inelastic) collision, the same two bumper cars with the same initial velocities now latch together as they collide. what is the final speed of the two bumper cars after the collision?

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.

The ideal gas model is valid if which of the following conditions is true? the gas density is low. the gas density is high. the temperature is low. the temperature is high. the gas density and the temperature are low. the gas density and the temperature are high. the gas density is high and the temperature is low. the gas density is low and the temperature is high.

Agust of wind pushes a beach ball with a force of 9 newtons.the ball rolls 10 meters in 3 seconds. what is the power of the wind?