Practice
1. nitrogen and oxygen
en and oxygen in their liquid states have densities only 0.8 and 0.9
water. atmospheric pressure is due primarily to the weight of nitro-
and oxygen gas in the air. if the atmosphere liquefied, would its depth
be greater or less than 10.3 m?

Study the following reaction carefully. what classification should this reaction have? 4al + 3o2 2al2o3synthesisdecompositionsingle replacementdouble displacement

Abody of weight 60 kg is standing in a lift the lift going upward with a uniform velocity of 4.9 metre per second slows down and stops in two seconds then apparent weight of the body during the slow down process is

An object starts from rest at point f and speeds up continuously as it moves around an oval. a. choose a point about 1/8 th of the way around the oval from point f, and label it point g. draw a vector to represent the velocity of the object at point g. b. determine the change in velocity vector   between points f and g.