What best explains why a person can become sunburned by spending too much time at the beach? Sunlight is an electromagnetic wave that gains energy as it travels through air to reach the person.
Sunlight is an electromagnetic wave carrying energy that is absorbed by the skin.
Sunlight is a mechanical wave that vibrates the skin particles to produce heat.
O Sunlight is a mechanical wave, and its frequency matches the natural frequency of skin to make heat.

Acylinder with a movable piston contains 11.7 moles of a monatomic ideal gas at a pressure of 1.32×10^5 pa. the gas is initially at a temperature of 300 k. an electric heater adds 43200 j of energy into the gas while the piston moves in such a way that the pressure remains constant. cp=20.79 j k^−1 mol^−1 for a monatomic ideal gas, and that the number of gas molecules is equal to avogadro's number (6.022×10^23) times the number of moles of the gas. (a) what is the temperature of the gas after the energy is added? (b) what is the change in volume of the gas? (c) how much work is done by the gas during this process?

Abicycle slows down when the rider applies the brakes. what type of energy transformation is involved in this example? a. kinetic energy into heat energy b. heat energy into potential energy c. potential energy into kinetic energy d. kinetic energy into mechanical energy

Atomic nuclei of almost all elements consist of