Consider the differential equation below where4 rad/s 2 432x -8sin(ot) (a) write down the particular solution for the problem and clearly show equations for the amplitude. (b) clearly show the phase angle of the particular solution. (c) for which range of frequencies may the derivative terms can be ignored. show numerical values (d) for which range of frequencies may the sinusoidal input be ignored. show numeric values.

Why is alternating current more effective at long–distance travel than direct current? a. the power lines are made out of conductors. b. transformers increase or decrease voltage as needed. c. the ac generator is more efficient. d. ac has lower voltage than dc.

Tafari worked one summer on a ship that set weather buoys in the ocean. he watched how one of the buoys moved in the water. describe which parts of the wave would cause the buoy to bob up and down. which wave property determined how fast the buoys bobbed in the water? he observed that when the wind blew harder, the ocean waves were larger, and the buoys moved away from the ship. what effect, if any, did the waves have on how far the buoys moved? explain your answer.

Which is the correct symbol for an isotope of iodine with 53 protons and 78 neutrons?