Which statements accurately describe stars? check all that apply. all stars are smaller than the sun. stars are flat circles. stars are made of gas. star color is related to temperature. star brightness depends on shape.

The equation that describes a transverse wave on a string is y = (0.0120 m)sin[(927 rad/s)t - (3.00 rad/m)x] where y is the displacement of a string particle and x is the position of the particle on the string. the wave is traveling in the +x direction. what is the speed v of the wave?

Let f(x) = x4- 8x2 . find the relativeextrema of this function using the second derivative test.

What are chlorofluorocarbons and what impact do they have on the atmosphere?