Answer:
To make useful chemicals and abrasives
Explanation:
15 degrees because a glass of water won't do anything to a bath tub of 15 degree water
The ice and how the blades are made
Answer:
6m/s
Explanation:
the original momentum = mass x velocity = 8x (60+10) = 560
momentum after = mass x velocity of the school bag + mass x velocity of the boy = 10x20 + 60x A
200+60A = 560
A=6