Cheng
This page lists questions and answers that were posted by visitors named Cheng.
Questions
The following questions were asked by visitors named Cheng.
A billiard ball strikes and rebounds from the cushion of a pool table perpendicularly. The mass of the ball is 0.38 kg. The ball approaches the cushion with a velocity of +2.10 m/s and rebounds with a velocity of -2.00 m/s. The ball remains in contact wit...
13 years ago
In a farm, the farmer counted 78 legs and 35 heads consisting of cows and hens. How many hens does he have?
9 years ago
Answers
The following answers were posted by visitors named Cheng.