The mass of a proton is 1.6726 * 10^-24 and the mass of a electron is 9.1093 * 10^-28. what is the difference between the mass of a proton and the mass of an electron?

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

Select the word from the list that best fits the definition classification of most stars on the h-r diagram

When considering gravity acceleration and the force of acceleration, what must be true? a. the direction of acceleration must be perpendicular to the direction of the force. b. the direction of the force and the direction of acceleration must be the same as each other. c. the direction of the force and the direction of acceleration must be opposite of each other. d. the mass of the body must be the same as the acceleration of the body.