What is the force that attracts metal to other metals called? 1.) magnetism
2.)gravity
3.)nuclear
4.) electricity

Select the word from the list that best fits the definition classification of most stars on the h-r diagram

An architect plans to use solar energy to heat the next house he designs. what principle of absorption and infrared energy can be applied to the design of the new house? how could she apply to those principals?

Aweight lifter raises a 1600 n barbell to a height of 2.0 meters. how much work was done? w = fd a) 30 joules b) 3000 joules c) 320 joules d) 3200 joules