Which layer of earth has the lowest temperature is entirely solid and floats on top of fluid like matter

Which type of bond is found between the atoms of a molecule? a. metallic b. delocalized electron c. covalent d. ionic

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