4, Find the resultant of three concurrent forces of 8 N, 12 N and 16 N acting at respective angles 30°, 60° and 90° relative to the +x-direction.
A. 43.0 N, 067°
B.-36.0 N, 180°
C. 30.4 N, 090°
D. 43.0 N, 247°​

Gam radio signals can usually be heard behind a hill, but fm often cannot. that is, am signals bend more than fm. explain. (radio signals, as we shall see, are carried by electromagnetic waves whose wavelength for am is typically 200 to 600 m and for fm about 3 m.)

The cerebellum controls? thirst sensations sleep-wake cycles hand-eye coordination heart rate and pulse

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.