A tunnel under a river is 2.00 km long. (a) At what frequencies can the air in the tunnel resonate? (b) Explain whether it would be good to make a rule against blowing your car horn when you are in the tunnel.

What produces a person's voice? the alveoli the lungs the vocal cords the diaphragm

Which of the following is not an example of a refusal skill? A. Agreeing to do something you don't want to do B. Walking away C. Suggesting an alternative activity D. Changing the subject

A snowball is launched horizontally from the top of a building at v = 19.6 m/s. If it lands d = 64 meters from the bottom, how high (in m) was the building?

Which of the following is true about green light? a) It has a greater frequency than red light and blue light. b) It has a smaller frequency than red light and blue light.

Right auricale is bigger then left aurical, why?

How do waves interact with water?

Which of the physical processes below results in the formation of metamorphic rocks? A. heat and pressure B. weathering and erosion C. cooling and crystallization D. deposition and eruption

Explain why the rusting of an iron bar decreases the strength of the bar

A double slit has a slit separation of 2.02 x 10-6 m, and the first bright fringe of a light is seen at an angle of 16.5º relative to the central maximum. what is this light's wavelength?

A cylindrical fuel rod of 2 cm in diameter is encased in a concentric tube and cooled by water. The fuel generates heat uniformly at a rate of 150 MW/m3. The convection heat transfer coefficient on the fuel rod is 5000 W/m2.