An antenna of 10.1 kW radio station radiates electromagnetic waves in all directions. At distance 5.2 km from this antenna, an open window of area 0.52 m2 is positioned perpendicular to the propagation direction of this electromagnetic wave. How much energy does this wave carry through the window during 29 seconds? (Give your answer in scientific notation, using "J" (Joule) as a unit)

Water is siphoned from a large tank and discharges into the atmosphere through a 50-mm diameter tube. the end of the tube is b = 2.6 m below the tank bottom which is a = 6.7 m deep, and viscous effects are negligible. determine the maximum height h over which the water can be siphoned without cavitation occurring. atmospheric pressure is 101.4 kpa, and the water vapor pressure is 1.79 kpa (absolute). report your answer in meters to two decimal places.