Any kind of wave spreads out after passing through a small enough gap in a barrier. this phenomenon is known as any kind of wave spreads out after passing through a small enough gap in a barrier. this phenomenon is known as refraction antireflection diffraction double-slit interference

Oxygen and nutrients are moved through the body by the: a. circulatory system c. lymphatic system b. digestive system d. reproductive system

Awater-filled u-tube manometer is used to measure the pressure inside a tank that contains air. the water level in the u-tube on the side that connects to the tank is 5 ft above the base of the tank. the water level in the other side of the u-tube (which is open to the atmosphere) is 2 ft above the base. determine the pressure within the tank.

You've already seen the value of 9.8 in this lesson. what's this value called? what quantity does it represent?