Two ice skaters are at rest, Abby and Ben. Abby has a mass of
52.5 kg. They push off each other.
After, Abby moves 1.59 m/s east,
while Ben moves 1.22 m/s west.
What is Ben's mass?
(Unit = kg)
Remember: right is +, left is -

Three archers each fire four arrows at a target. joe’s four arrows hit at points 10 cm above, 10 cm below, 10 cm to the left, and 10 cm to the right of the center of the target. all four of moe’s arrows hit within 1 cm of a point 20 cm from the center, and flo’s four arrows hit within 1 cm of the center. the contest judge says that one of the archers is precise but not accurate, another archer is accurate but not precise, and the third archer is both accurate and precise. which description applies to which archer? explain

Imagine you are standing in the antarctic during the southern hemisphere summer. the sky is clear and blue. there are no clouds in the sky. your shadow is cast on the icy ground. what is the color of the shadow?

Argon, neon, and xenon are examples of