the displacement of a wave traveling in the positive x-direction is y(x, t)=(3.5cm)cos(2.7x−92t), where x is in m and t is in s.

On a cold day, when the air temperature is 0°c, you empty your lungs and take a deep breath, filling your lungs with 4.2 l of air. if you hold your breath until the temperature of the air in your lungs reaches 37°c, what is the volume of the air in your lungs at that point, assuming the pressure does not change?

Positrons are spontaneously emitted from the nuclei of

Coal contains energy. a. light b. kinetic c. chemical d. mechanical