Why don't all types of brass have identical properties?
a) the properties of brass vary according to the air pressure.
b) the properties of brass vary according to its specific composition.
c) the properties of brass vary according to the temperature outside.
d)the properties of brass depend on whether or not it is a pure
element or an alloy.

8 m/s because for him to get the same amount of energy as ray is putting out, bobby, who weighs half as much as ray, needs to run twice as fast.

because natural gas is colorless, odorless, and tasteless, distributors add mercaptan (a chemical that smells like sulfur) to give natural gas a distinct unpleasant odor (it smells like rotten eggs). they locate the types of rock that are likely to contain natural gas deposits.

a is the correct answer

5.6⋅10−^19  j

do you need the explaination?