What equation demonstrates the law of conservation of mass

An object moves from position +34m to the position -15m in 15 seconds. what is the total displacement? what is the total velocity?

What is the rate of 12 liters of water moving through a water hose in 4.0 minutes?

Which statement is true if the refractive index of medium a is greater than that of medium b? a. total internal reflection is possible when light travels from air to medium b to medium a. b. total internal reflection is possible when light travels from medium a to medium b. c. total internal reflection is possible when light travels from medium b to medium a. d. total internal reflection is possible when light travels from air to medium a. e. total internal reflection is possible when light travels from air to medium b.