A coil with an area of 0.10 m^2 is in a magnetic field of 0.20 T perpendicular to its area. It is flipped through 180 so that the part that was up is down. The flip takes 1.0 s. Estimate the average induced emf between the ends of the coil while it is flipped.

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?

In positive numbers less than 1, the zeros between the decimal point and a non-zero number are blank significant

What is the name for the remnant of an asymptotic giant that has lost its shells? black dwarf white dwarf yellow giant black hole