Find x and y component of the following forces a. 100N at 37° b. 80N at 127° c. 50N at 225°

Explain vector addition, triangle method and parallelogram method

Ametal ring 4.20 cm in diameter is placed between the north and south poles of large magnets with the plane of its area perpendicular to the magnetic field. these magnets produce an initial uniform field of 1.12 t between them but are gradually pulled apart, causing this field to remain uniform but decrease steadily at 0.240 t/s . (a) what is the magnitude of the electric field induced in the ring? (b) in which direction (clockwise or counterclockwise) does the current flow as viewed by someone on the south pole of the magnet?

The frequency of the fundamental of the guitar string is 320 hz. at what speed v do waves move along that string?