Using the information learned from the pendulum demonstration, when the pendulum is at it's lowest point, what type of energy does it have and WHY?

Which statement describes the appearance of a temperature-vs.-time graph? a horizontal line shows that the temperature increases at a constant rate over time. a vertical line shows that the temperature decreases at a constant rate over time. horizontal lines where the temperature is constant during phase changes connect upward-sloping lines where the temperature increases. horizontal lines where the temperature increases are connected by upward-sloping lines where the temperature is constant for each phase.

Gymnast always perform on padded mats. how does the mats protect the gymnast

Compare and contrast physical changes with chemical changes.