When scientists use one of their five senses to gather information, they are A.
drawing a conclusion.
B.
making an inference.
C.
predicting a relationship
D.
making an observation.

Which situation will produce the greatest change of momentum

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?

Suppose that 27 j of work is needed to stretch a spring from its natural length of 6 m to a length of 9 m. (a) how much work is needed to stretch the spring from 12 m to 14 m? j (b) how far beyond its natural length will a force of 78 n keep the spring stretched?