suppose that when you move the north pole of a bar magnetic toward a coil it induces a positive current in the coil. the strength of the field produced by an electromagnetic can be controlled electronically. suppose you place a coil near the north pole of an electromagnet and increase the field while keeping everything stationary. which one of the following will happen?

What are segments of dna that code for a particular trait. a combination of dna and proteins make up what

Aplane takes off from an airport and flies to town a, located d1 = 215 km from the airport in the direction 20.0° north of east. the plane then flies to town b, located d2 = 230 km at 30.0° west of north from town a. use graphical methods to determine the distance and direction from town b to the airport. (enter the distance in km and the direction in degrees south of west.)

Nacidified solution was electrolyzed using copper electrodes. a constant current of 1.18 a caused the anode to lose 0.584 g after 1.52 ✕ 103 s. given that the charge of an electron is 1.6022 ✕ 10−19 c, calculate avogadro's number. assume that copper is oxidized to cu2+ ions.