A 4 kg ball is traveling to the right at 2 m/s. A 6 kg ball is traveling to the left at 4 m/s. . If the velocity of the 6 kg ball is 0.8 m/s to the left after the collision, what is the velocity of the 4 kg ball after the collision?

•• al and bert are jogging side-by-side on a trail in the woods at a speed of 0.75 m/s. suddenly al sees the end of the trail 35 m ahead and decides to speed up to reach it. he accelerates at a constant rate of 0.50 m/s2, while bert continues on at a constant speed. (a) how long does it take al to reach the end of the trail? (b) once he reaches the end of the trail, he immediately turns around and heads back along the trail with a constant speed of 0.85 m/s. how long does it take him to meet up with bert? (c) how far are they from the end of the trail when they meet?

Why can blue light and yellow light combine to produce white light? question 17 options: they are both primary colors of light. they absorb each other's wavelengths. because blue, yellow, and white are primary colors. they are complementary colors of light.

Which branches of natural science include the study of an organism that lived 10 million years ago