How did you identify the layer that belonged next to the cambrian layer?

The harmonic motion of a particle is given by f(t) = 2 cos(3t) + 3 sin(2t), 0 ? t ? 8. (a) when is the position function decreasing? (round you

Picture a all traveling at a constant speed around the inside of a circular structure. is the ball accelerating? explain your answer

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