What is true for two pieces of iron at the same temperature? a. the average kinetic energy of their particles is the same. b. the total kinetic energy of their particles is equal. c. heat flows from the larger object to the smaller object. d. heat flows from the object with higher potential energy to the object with lower potential energy.

The frequency of a given region of the electromagnetic spectrum ranges from 3 × 1016 − 3 × 1019 hertz. which type of wave is found in this region? a. x-rays b. ultraviolet rays c. infrared waves d. radio waves

Which of the following are guidelines to follow for obtaining accurate observations

The period of a pendulum varies directly as the square root of the length of the pendulum and inversely as the square root of the acceleration due to gravity. find the period when the length is 144 cm and the acceleration due to gravity is 980 cm per second squared, if the period is 7pi seconds when the length is 289 cm and the acceleration due to gravity is 980 cm per second squared.