What is the speed of sound in air when the temperature is 20°C?

319 m/s

331 m/s

343 m/s

219 m/s

What does the kinetic theory say about the motion of atoms

When a star leaves the main sequence and expands toward the red giant region, what is happening inside the star?

A kangaroo with an original velocity of 3 m/s accelerates at a rate of 1 m/s^2 for 2 seconds. What displacement will the kangaroo experience?

Which of the following natural factors is likely to support the formation of an oceanic island? Erosion of undersea stalagmites and stalactites Erosion of the face of a cliff by waves Rising of magma from the seafloor Rising sea level in low-lying

Look at the symbol. Which component in a circuit does it represent? A. conductor B. AC power source C. DC power source D. switch

What is the difference between speed and velocity? a. speed does not include time, but velocity does. b. speed does not include a direction, but velocity does. c. speed is used to calculate acceleration, but velocity is not. d.

An alloy is an example of what solution

What is the speed of sound in air when the temperature is 20°C? 319 m/s 331 m/s 343 m/s 219 m/s

How long does it take for sunlight to reach earth

What is the current when the power source supplies 100 volts to a 10 ohm resistor?