The drag force for fast moving objects falling through a fluid is given by 1 2 DrhoAv2, where D is the drag coefficient, A is the cross-sectional area perpendicular to the direction of motion, rho is the density of the fluid, and v is the speed of the object. During a thunderstorm, a hailstone with a cross-sectional area of 8.15 ✕ 10−5 m2 and a mass of 4.50 ✕ 10−4 kg falls through the air. If the drag coefficient is 0.500, find the magnitude of the terminal velocity of the raindrop. The density of air is 1.20 kg/m3.

How many neutrons does element x have if it’s stormy umber is 33 and it’s mass number is 95?

9.98 kg of r-134a at 300 kpa fills a rigid container whose volume is 14 l. determine the temperature and total enthalpy in the container. the container is now heated until the pressure is 600 kpa. determine the temperature and total enthalpy when the heating is completed. use data from the steam tables.

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.