What is the algebraic expression for the speed vb of the lighter box as it reaches b? express your answer in terms the box's speed va at point a, the magnitude g of the acceleration due to gravity, and the heights, ha and hb, of the two points above the ground.

Herbivores, carnivores, and omnivores are all types a. decomposers b. producers c. consumers d. biomes

Awater-filled u-tube manometer is used to measure the pressure inside a tank that contains air. the water level in the u-tube on the side that connects to the tank is 5 ft above the base of the tank. the water level in the other side of the u-tube (which is open to the atmosphere) is 2 ft above the base. determine the pressure within the tank.

Two point charges are on the y axis. a 3.90-µc charge is located at y = 1.25 cm, and a -2.4-µc charge is located at y = −1.80 cm. (a) find the total electric potential at the origin. v (b) find the total electric potential at the point whose coordinates are (1.50 cm, 0). v