A 20ft long ser-saw has its fulcrum in the middle . A 125 lb kid sits at the left end. Another kid sits 2.30 ft in from the right end. How much must the second kid weigh to balance the see-saw?

Identify the forces that contribute to the centripetal force on the object in each of the following examples: a. a bicyclist moving around a flat, circular track b. a bicycle moving around a flat, circular track c. a racecar turning a corner on a steeply banked curve

Orange juice has a lower or higher viscosity than chocolate syrup

How does an observation about an object differ from an inference about that object