Aweather balloon is inflated to a volume of 27.5 l at a pressure of 750 torr and a temperature of 30.3 ∘c. the balloon rises in the atmosphere to an altitude of approximately 7600 m, where the pressure is 400 torr and the temperature is -15.3 ∘c assuming the balloon can freely expand, calculate the volume of the balloon at this altitude.

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.

State the below theories and give the name of the writer of the theory 1. wave theory 2. quantum theory 3. corpuscular theory 4. electromagnetic theory

Ahurricane sweeps across the ocean and damages the houses of people living along the coast. which of these does not play any role in this interaction? air water glaciers living things