You are on an airplane traveling 30° south of due west at 180 m/s with respect to the air. the air is moving with a speed 31 m/s with respect to the ground due north.
1) what is the speed of the plane with respect to the ground?
2) what is the heading of the plane with respect to the ground? (let 0° represent due north, 90° represents due east).
3) how far east will the plane travel in 1 hour?

Aneutron and a proton combine to form a nucleus. why does the mass of the nucleus differ from the sum of the masses of the individual nucleons?

Which of the following types of electromagnetic radiation has the longest wavelength? a. infrared light b. visible light c. ultraviolet light d. microwaves

The two metal spheres in the figure are connected by a metal wire with w switch in the middle. initially the switch is open. sphere 1, with the larger radius, i'd given a positive charge. sphere 2, with the smaller radius, is neutral. then the switch is closed. afterward, sphere 1 has charge q1, is at potential v1 and the electric field strength at its surface is e1. the values for sphere 2 are q2, v2, and e2. a. is v1 < ,> , or = to v2? explain. b. is q2 < , > , or = explain? c. is e1 < ,> ,or = to e2? explain?