Question 13 A hot air balloon has a pressure of 0.715 atm while the temperature outside is 30
degreeſ C. What will the pressure be if the temperature drops to 10 degrees C while
volume remains constant? Do not write units in the answer. Make sure to convert
temperature values to Kelvin.

The drawing represents the movement of particles in a substance. what changes of state can this substance undergo

Which statement best describes the relationship between period and frequency of light waves? a) in wave b the period increases and the frequency decreases from wave a. b) in wave a the period increases and the frequency decreases from wave b. c) in wave b the period is shorter and the frequency is greater than in wave a. d) in wave a the period is shorter and the frequency is greater than in wave b.

Nonpoint source pollution is difficult to control because it