You drop a water ballon from a second story window. what formula would you use to calculate the velocity of the water ballon just before it hits the ground, assuming it is in free fall

Complete the following reactions using word and balanced equations including states. dilute phosphoric acid is added with a calcium hydroxide solution.

Match term definition ellipse a) diagonal cross section of a cylinder circle b) diagonal cross section through the widest part of a sphere sphere c) cross section parallel to the base of a cone great circle d) shape created when a semi-circle is rotated around the y-axis triangle e) perpendicular cross section of a cone

Imagine that you push on a large rock. at what point does your effort change the rock’s mechanical energy?