A 5kg ceiling fan is fitted 5 m above the floor Calculate the gravitational potential energy of the Earth ceiling fan system relative to the floor.

Determine the mass of fuel required for the expected energy consumption in the united states for the next ten years. energy use per person per year in the united states = 3.5 x 1011joules base calculations on current population of 310,000,000.

If you have 5.25 grams of methane (ch4), how many grams of co2 will you produce ?

Which statement is usually true about the relationship between activation energy and reaction rates? low activation energy barriers result in low rates. high activation energy barriers result in low rates. low activation energy barriers result in no reaction. high activation energy barriers result in no reaction.