Suppose you are given the task of measuring the colors of the brightest stars, listed in appendix j, through three filters: the first transmits blue light, the second transmits yellow light, and the third transmits red light. if you observe the star vega, it will appear equally bright through each of the three filters. which stars will appear brighter through the blue filter than through the red filter? which stars will appear brighter through the red filter? which star is likely to have colors most nearly like those of vega?

What does si stand for,when referring to a system of measurement

Aparticle's position is given by x = 3.00 - 9.00t + 3t2, in which x is in meters and t is in seconds. (a) what is its velocity at t = 1 s? (b) is it moving in the positive or negative direction of x just then? (c) what is its speed just then? (d) is the speed increasing or decreasing just then? (try answering the next two questions without further calculation.) (e) is there ever an instant when the velocity is zero? if so, give the time t; if not, answer "0". (f) is there a time after t = 3 s when the particle is moving in the negative direction of x? if so, give the time t; if not, answer "0".

Which if these is an etiquette rule? (american football) question 10 options: a. debating with the ref over a call b. not communicating with your team c. post-game handshake d. taunting