When doing a chin-up, a physics student lifts her 42.0 kg body a distance of 0.25 m in 2 seconds. What is the power delivered by the student's biceps? (you must SHOW ALL WORK for your math calculations) .

Heena wants to measure the volume of a ball that is 24 cm across. how should she set up her equation?

Blank liquids and gases exert a buoyant force on objects placed in them

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