Answer:
Explanation:
= Observed wavelength = 550 nm
= Actual wavelength = 635 nm
c = Speed of light = 
v = Velocity of the physicist
Doppler shift is given by


The physicist was traveling at a velocity of
.
Answer:
Explanation:
C Remaining or left over after everything has been accounted for.
You can have as many forces as you can define as long as there is an opposing force that cancels it out. If there is just 1 more force that cannot be cancelled, then it is a remaining force and it determines what happens to the object.
The rest have to do with something that resembles a fisherman's net.
Answer:
The correct answer is Separating soils by grain size. Among all the other choices, this is the aspect of soil characteristics in which a soil triangle is used for.
Explanation:
The electromagnetic spectrum spans a variety of radiation types including x-rays all the way through to radio waves. Humans are able to only see in the visible part of the electromagnetic spectrum (390-700nm) but bees can see ultraviolet radiation (10-100nm). Lower wavelength electromagnetic waves have more energy. Hence, compared with humans, bees can sense electromagnetic waves that have more energy.