28. A person walks 12.0° north of west for 55.0 m and 63.0° south of west for 25.0 m. What is the magnitude of his displacement? Solve analytically.
a. 10.84 m
b. 65.1 m
c. 66.04 m
d. 80.00 m

In a system, when potential energy decreases, then entropy also decreases. true false

Selma made a diagram to compare convection and radiation. which label belongs in the area marked x? must involve temperature differences between substances or objects only occurs when molecules are in direct contact involves the movement of fluids based on density differences can occur where there is little or no matter

Matter is needed to transfer thermal energy bya. conductionb. convectionc. radiation d. both a & b.