Ina shoots a large marble (marble a, mass: 0.08 kg) at a smaller marble (marble b, mass: 0.05 kg) that is sitting still. marble a was initially moving at a velocity of 0.5 m/s, but after the collision it has a velocity of –0.1 m/s. what is the resulting velocity of marble b after the collision?

An isotope undergoes radioactive decay by emitting radiation that has a –1 charge. what other characteristic does the radiation have?

Galileos view of arrangement of the universe

Select the correct answer. which of these actions is an example of chemical weathering? o a. freezing water widens the cracks in rocks. ob. plant roots force their way into cracks in rocks and break them. oc. oxygen in air reacts with iron content in rocks, causing them to change color. od. strong winds peel soft rock away, leaving harder rock behind. reset next