Matthew drops a ball and watches it bounce back up from the ground. he draws a force diagram that shows the forces when the ball collides with the ground. which diagram correctly shows the forces involved?

Ryan is examining the energy of the particles in a bar of gold. what is ryan most likely studying?

What is the prp when using 5 mhz acoustic waves through soft tissue, imaging a death of 20 cm?

An unknown mineral sample has a mass of 318 g and a volume of 120 cm³. which mineral could the sample be? a. gypsum (density = 2.3 g/cm³) b. quartz (density = 2.65 g/cm³) c. apatite (density = 3.1 g/cm³) d. zircon (density = 4.65 g/cm³)