17.5 g piece of copper is heated and fashioned into a bracelet. The amount of energy transferred by heat to the copper is 6,300.0 J. The specific heat of copper is 0.385 J/g°C. What is the change of the copper's temperature? *Include your units!

Round your answer to the nearest whole number.

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?

Write down two additional questions about earth's magnetic field that will make your presentation more informative.

An object resting on a table weighs 100 n. with what force is the object pushing on the table? with what force is the table pushing on the object? explain how you got your answer.