What is the trachea lined with to sweep away particles and dust?

Give an example of a trip you might take in your car for which the distance traveled as measured on your car's odometer is not equal to the displacement between your initial and final positions.

How are electromagnetic waves different from mechanical waves? Electromagnetic waves are all high frequency; mechanical waves are all low frequency. Electromagnetic waves can travel through a vacuum; mechanical waves require a medium.

Which is related to air pollution in Mexico City? A. burning fossil fuels B. using hydropower C. collecting natural gas D. using biofuels

A scalar measurement consists of a. a magnitude. b. a direction and a unit. c. a number and a magnitude. d. a magnitude and a direction.

A particle travels to the right at a constant rate of 6.8 m/s. It suddenly is given a vertical acceleration of 3.4 m/s 2 for 4.3 s.

If the water cycle is effective why are some areas in the world always short on water?

Low-frequency red light is used in dark rooms because it does not expose the film. This is because the red light has a low

Mark puts an object that has a mass of 58.2kg in a cart that has a mass of 73.00 kg.

two objects are in uniform circular motion at the same speed but at different radii. the ones with the __ radius has the largest centripetal acceleration.

What about a rubber band, can it change its shape? Is it a solid?