The force that gravity exerts on an object is called a. mass b. density c. volume d. weight

When analyzing tree rings, what do scientists assume a thin ring indicates?

Modern sea star larvae resemble some primitive vertebrate larvae. this similarity may suggest that primitive vertebrates

If a force of 40 newtons moves a cart a distance of 9 meters, the work done is nm. if the same force moves the same cart three times that distance, the work done is nm.