A 2.5-kg bucket of water is attached to a 1.0-m rope. The bucket is swung in a circle with the rope at 10.0-m/s. a)What is the centripetal force that keeps the bucket moving in its circular path?b)What provides the centripetal force that keeps the bucket moving in its circular path?c)If the rope can hold 400-N of force, what is the maximum speed the bucket can move in its circular path? {Hint: Let the centripetal force be 400-N and solve for the speed.}

An ideal polarizer with its transmission axis rotated 30 degrees to the vertical is placed in a beam of unpolarized light of intensity 10w/m^2. after passing through the polarizer, what is the intensity of the beam? a. 8.7 w/m^2 b. 7.5 w/m^2 c. 5.0 w/m^2 d. 10 w/m^2 e. 2.5 w/m^2

When temperature of a substance increases, of its particles increase resulting in more between particles. real world applications of thermal expansion absolute zero (-273 degrees c) is the lowest possible temperature on the kelvin scale. it is a measure of where a substance has no kinetic energy. heat is a process of the . energy flows spontaneously from a object to a until equilibrium is reached. heat is measured in heat is transferred throughis a method of heat transfer that occurs between particles of matter that are in direct contact with each other. are poor conductors that impede / reduce the rate of heat transfer. is a method of heat transfer that occurs in fluids (non-solids) by means of currents. real world application of convectiona method of heat transfer through electromagnetic waves. when energy moves from one object to another inside a closed system, no energy is or in the system in the transaction. systems will spontaneously move to a state of organized energy or high disorder over time called

The energy produced as a result of this flow of electrons from atom to atom is called