Which of the following is not necessary for the creation of fossil fuels? A. Organic matter
B Heat
C Pressure
D. Wind

Stars x and y are both bluish main sequence stars. star x has a higher absolute brightness than star y. how do the two stars compare? explain

Let v1, v2, w be three linearly independent vectors in r 3 . that is, they do not all lie on the same plane. for each of the following (infinite) set of vectors, carefully sketch it in r 3 , and determine whether or not it is a vector space (i.e., a subspace of r 3 ). explain your reasoning

Discuss how the hardness or softness of the landing surface is related to the time required to stop the egg