12. EMF produced in a coil A circular coil of 169 turns and radius 3 cm is placed in and perpendicular to a magnetic field of intensity 0.4 T. If the
intensity is reduced to zero in 0.004 s. What EMF is produced in the coil? (Write your answer to 1 decimal place.)

Astudent creates a model of a closed ecosystem by filling a glass tank half full with water, then adding 10 snails and two small aquatic plants. the next day, all the snails are dead. what is the most likely cause of their death?

What is the thinnest soap film (excluding the case of zero thickness) that appears black when illuminated with light with a wavelength of 480 ? the index of refraction of the film is 1.34, and there is air on both sides of the film. express your answer in nanometers. hint 1. how to approach th

Which composition of water moves to begin a deepwater current?