Which rope would have the longest wavelength-one with a frequency of 2 hz or one with a frequency of 3 hz?

Find the vertex(use the completing the square method), findthe x- and y-intercepts, and sketch the graph offunction. y = 2x2 + 4x - 1

The free body diagram shows a box being pulled to the left up a 25-degree incline. the magnitude of the normal force is

Which of the following conditions lead you to see an absorption line spectrum from a cloud of gas in interstellar space? the cloud is extremely hot. the cloud is visible primarily because it reflects light from nearby stars. the cloud is cool and lies between you and a hot star. the cloud is cool and very dense, so that you cannot see any objects that lie behind it.