Does increasing the mass of the car increase its speed by proportional amount? does the speed decrease with increasing mass? does the speed stay about the same, no matter what the mass?

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

An object weighs 40n in air, weighs 20n when submerged in water and 30n when submerged in a liquid of unknown density. what is the density of the liquid?

How do you tell if someone actually cares about you? and just say they do?