Most members of species of cat depend mainly
on mice for food. For several summers in a row,
a disease kills off most of the mice in an area.
Over time, what is the most likely effect on the
cat species?
A All of the cats will die of starvation.
B Those cats that can eat foods other than
mice will survive and reproduce.
C The cat species will lose its genetic diversity,
D There will be no long-term effect on the cat
species.

Sawyer is studying diffraction. he draws a diagram of a plane wave to show how light waves travel. which best describes sawyer’s error? the wave fronts should be perpendicular to the direction in which the waves move. the arrow showing the direction of movement of the waves should be pointing to the left. the arrow showing the direction of movement of the waves should be pointing downward. the wave fronts should be both parallel and perpendicular to the direction in which the waves move.

What is the measure of a change in an objects velocity?

Select light for the type of wave, adjust the wavelength so that the light is red, and increase the amplitude of the light to the max. then, select the start button at the source location to begin producing the waves. light is a form of electromagnetic wave, containing oscillating electric and magnetic fields. the wave amplitude detector mentioned above shows how the electric field oscillates in time at the location of the probe. the amplitude of the wave at the location of the probe is equal to the maximum electric field measured. how does the amplitude of the wave depend on the distance from the source?