The doppler effect is the change in observed frequency due to

a. the type of medium the wave is in

b. the type of wave

c. the original frequency of the source

d. the motion of the source or observer

Esimate and add to the nearest thousand 6,521+1,063+901

When a substance changes from any state of matter to another it is called a. sublimation. b. condensation. c. absolute zero. d. a phase change.

What is an example of a renewable natural resource?

What would happen to the rock cycle if erosion did not occur

Why does copernicus accuse ptolemy of logical inconsistency?

A question about a moral issue is answered by examining facts rather than opinions. is generally considered a scientific question. cannot be answered with scientific methods. cannot be debated through discussion.

Who is most likely to have a physiological age that is much younger than his or her actual age?

Inflammation happens when the mucous membranes cannot stop a pathogen. True False

If the diameter of the space station is 730 m, how many revolutions per minute are needed for the "artificial gravity" acceleration to be 9.80m/s2?

The act, process or state of the change in place or position oa a body with respect to time and relative to the observer is said to be : - 1. Rest 2. Stationary 3. Motion 4. None of the above