What is the pressure produced by a kilogram of lead on a horzontal surface if its area it rests on is 0.02m^2?

490N/m^2

Explanation:

Mass=1kg

Acceleration due to gravity=9.8m/s^2

area=0.02m^2

Force=mass x acceleration due to gravity

Force=1 x 9.8

Force=9.8N

Pressure=force ➗ area

Pressure=9.8 ➗ 0.02

Pressure=490N/m^2

28. evolution

29. environment, survive, offspring  

explanation:

the force represented by vector a is normal force. if the hockey puck is moving to the right, when it is hit with a significant force by the hockey stick the puck will move off in a different direction. correct on edge.