Consider the two moving boxcars in example 5. car 1 has a mass of m1 = 65000 kg and a velocity of v01 = +0.80 m/s. car 2 has a mass of m2 = 92000 kg and a velocity of v02 = +1.2 m/s, overtakes car 1 and couples to it. determine the velocity of their center of mass
(a) beforethe collision
(b) after the collision.

Explain in physical terms how a microwave oven works. what would happen when you put a conductor in the microwave oven? explain.

Aforce of 100 newtons is used to move an object a distance of 15 meters with a power of 50 watts. find the work dine and the time it takes to do the work

The chart shows the costs and shipping times for materials that a company needs to build a new product. which describes the best trade-off if the company needs to start building their product within the next two years? they should order the domestic materials because it is always best to choose the fastest shipping time. they should order the imported materials because it is always best to choose the lowest cost for materials. since the shipping time is longer, they should order the domestic materials because the additional cost is worth it to get the materials in time. even though the shipping time is longer, they should order the imported materials because they are less expensive and should arrive in plenty of time to build the product.