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.

Is work being done if you push a child in a wagon

If the magnitude of F1 is greater than the magnitude of F2, then the box is A) accelerating in the direction of F1 B) moving at constant speed in the direction of F1 C) moving at constant speed in the direction of F2 D) accelerating in the direction

We had a homework problem in which the Arrhenius equation was applied to the blinking of fireflies. Several other natural phenomena also obey that equation, including the temperature dependent chirping of crickets.

A block rests on a frictionless table on Earth. After a 20-N horizontal force is applied to the block, it accelerates at 3.9 m/s2. Then the block and table are carried to the moon, where the acceleration due to gravity is 1.62 m/s2.

When you turn up the thermostat on your furnace several things happen. which of these would be considered a chemical property of matter? A) hot air rises B) fuel can burn in the furnace C) air moves in a convection current

A device that changes thermal energy into mechanical energy

You and your roommate are moving to a city 380 mimi away. Your roommate drives a rental truck at a constant 55 mi/hmi/h, and you drive your car at 65 mi/hmi/h. The two of you begin the trip at the same instant.

Which planet is 92,897,000 miles from the sun?

Stretching or drawing a solid into a wire is which of the following physical properties A) ductility B) solubility C) malleability D) conductivity

How well does the infographic ""Plastics in the Ocean"" present a solution to the problem it describes?