A person places an ice pack on an injured knee. Which statement describes the flow of energy? O Heat flows from the ice pack to the knee by conduction.
O Heat flows from the knee to the ice pack by conduction.
O Heat flows from the ice pack to the knee by radiation
O Heat flows from the knee to the ice pack by radiation.

The strong nuclear force acts over a small distance than the electrostatic force. true or false

You add 800 ml of water at 20c to 800 ml of water at 80c what is the most likely final temperature of the mixture ? a. 100c b. 60c c. 25 c d.50c

Ahypothetical metal has an orthorhombic unit cell for which the a, b, and c lattice parameters are 0.413 nm, 0.665 nm, and 0.876 nm, respectively. (a) if there are 8 atoms per unit cell and the atomic packing factor is 0.536, determine the atomic radius (in nm). (b) if the density is 3.99 g/cm3, calculate the metal's atomic weight (in g/mol).