Scientists can use spectral analysis of stars to determine which of the following? select all that apply. surface temperature of the star elements on the surface of the star elements in the core of the star core temperature of stars

Why do electron microscopes have higher resolving power than light microscopes?

Which of the following is not a part of the respiratory system? a. pharynx b. trachea c. pancreas d. larynx

The temperature at a point (x, y) is t(x, y), measured in degrees celsius. a bug crawls so that its position after t seconds is given by x = 6 + t , y = 8 + 1 3 t, where x and y are measured in centimeters. the temperature function satisfies tx(3, 9) = 5 and ty(3, 9) = 4. how fast is the temperature rising on the bug's path after 3 seconds? (round your answer to two decimal places.)