What is the radius of a tightly wound solenoid of circular cross-section that has 180 turns if a change in its internal magnetic field of 3.0 t/s causes a 6.0 acurrent to flow? the resistance of the circuit that contains the solenoid is 17 ω. the only emf source for the circuit is the induced emf. show all work for credit?

Suppose that two tanks, 1 and 2, each with a large opening at the top, contain different liquids. a small hole is made in the side of each tank at the same depth 1.57 m below the liquid surface, but the hole in tank 2 has 2.49 times the cross-sectional area of the hole in tank 1. (a) what is the ratio ρ1/ρ2 of the densities of the liquids if the mass flow rate is the same for the two holes? (b) what is the ratio rv1/rv2 of the volume flow rates from the two tanks? (c) at one instant, the liquid in tank 1 is 14.9 cm above the hole. if the tanks are to have equal volume flow rates, what height above the hole must the liquid in tank 2 be just then?

Work out sian speed for the first 30 minutes of her journey. give your answer in km/h.

Which lists the pairs of plates in order from least to greatest in terms of the work done to move the electron?