Read each example and identify whether the data are observations or inferences from observations. The fish’s ventral fin measured 8.5 cm long.

Explain why you think this diagram shows what happened to the carbon in the biodome.

What happens when a rubber rod is rubbed with a piece of fur?

Two masses are connected by a rope that hangs over a pulley as shown below. the pulley is a uniform cylinder of radius 푅=0.381meters and mass 푀=3.1푘푔. initially 푚"is on the ground and 푚#rests 2.5 meters above the ground. if the system is released, use conservation of energy to determine the speed of 푚#just before it strikes the ground. assume the pulley bearing is frictionless.