A hungry hummingbird flies forward and backward. Its motion is shown on the following graph of horizontal position X vs. time t.

Name three different units of energy used to measure heat and describe what type of situations each is usually used.

Aspectroscope breaks light up into its colors, allowing scientists to analyze light from the solar system and universe. by studying the spectral line patterns, widths, strengths and positions, scientists can determine the speed, position, and of celestial bodies. a) age b) origin c) rotation d) temperature

I’ve been stuck on this for a while