Mass of Liquid A Initial Temperature Mass of Liquid B Initial temperature Final Temperature 50 grams 20°C 50 grams 100°C 75°C Two liquids from separate beakers are at the temperatures indicated in the table. What would be the best estimate for a mixture if you used 100 grams of liquid A? A) 20°C B) 25°C C) 55°C D) 75°C

The earth's magnetic field, with a magnetic dipole moment of 8.0×1022am2, is generated by currents within the molten iron of the earth's outer core. suppose we model the core current as a 3000-km-diameter current loop made from a 1000-km-diameter “wire.” the loop diameter is measured from the centers of this very fat wire. to decide whether this is a large or a small current density, compare it to the current density of a 7.0 a current in a 2.0-mm-diameter wire.