What is the maximum frequency a human eardrum is able to perceive?

Which in is it Speed (S) or Velocity (V) ? A bike goes 25 m/s toward main street, A person walks 4 mph. A plane flies 200 m/s. A bird flies 100 mph due south,

A person expanded 500 Newton's to move a full wheelbarrow 40 meters

What tern is used to describe the measurement of a wave equal to half the distance from crest to trough?

Which statement is true about transmission and absorption? Transmission is when light passes through an object and absorption is when some or all of the light is taken in or absorbed by the object.

If a piece of space debris is too large to be a meteoroid and too small to be a planet, it could be A. a meteor B. an asteroid C. a meteoroid D. a star

Ian walks 2 km to his best friend's house, then walks 0.5 km to the library. He then makes a 2.5 km walk home. The entire walk took him 3 hours. What is his average speed in km/h? SHOW YOUR WORK!

What would happen if earth gravity suddenly disappeared?

How many layers of material were the roads made of? a. two c. four b. three d. five

Red light has a shorter wavelength than yellow light.

Approximately what is the parallax angle of a star that is 20 light-years away?