Two radio antennas are 130 m apart on a north-south line. the two antennas radiate in phase at a frequency of 3.6 mhz. all radio measurements are made far from the antennas. the smallest angle, reckoned east of north from the antennas, at which constructive interference of two radio waves occurs, is closest to:

Which notation is used to represent an alpha particle? a. b. c. d.

10 points! will mark brainiest! in a heat engine if 1,000 j of heat enters the system and the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2,000 j 1: write the equation2: list out your known variables 3: plug the numbers into the equations 4: solve 5: write your solution statement that includes initial energy and final energy added you so much!

What would people living along the coast in south florida do if there was a hurricane warning? move to locations away from the water flock along coasts to watch the natural phenomenon buy instruments to predict the exact location of the hurricane measure water levels to know the exact time of the hurricane