What is the frequency of a wave with a velocity of 100 m/s and a wavelength of 20 m?
A. 5 Hz
O B. 120 Hz
C. 2000 Hz
O D. 0.2 Hz

*will mark you brainliest + 15 points ** why does the equilibrium of a system shift when the pressure is increased? a. to maximize the stress on the system b. to stop restoring equilibrium to the system c. to increase the total moles of gas in the system d. to decrease the total moles of gas in the system

At 300 mm hg, a gas has a volume of 380 l, what is the volume at standard pressure

What is the most common reason for matter changing its state?