A133-foot antenna is on top of a tall building. from a point on the ground, the angle of elevation to the top of the antenna is 30.5°, while the angle of elevation to the bottom of the antenna from the same point is 21.5°. how tall is the building? (round your answer to the nearest whole number.)

Along the line connecting the two charges, at what distance from the charge q1 is the total electric field from the two charges zero? express your answer in terms of some or all of the variables s, q1, q2 and k =14ï€ïµ0. if your answer is difficult to enter, consider simplifying it, as it can be made relatively simple with some work.

The magnitude of the poynting vector of a planar electromagnetic wave has an average value of 0.939 w/m^2 . the wave is incident upon a rectangular area, 1.5 m by 2.0 m, at right angles. how much total electromagnetic energy falls on the area during 1.0 minute?

State the following: boyle's law and charle's law