At what distance from a long straight wire carrying a
currentof 5.0a is the magnitude of the magnetic field due to the
wireequal to the strength of the earth's magnetic field of about
5.0 x10^-5 t?

According to the law of conservation of mass, in a chemical reaction the total starting mass of all the reactants equal the total final mass of all the products. true or false?

Identify the type of synthetic material used in each object

You throw a small rock straight up from the edge of a highway bridge that crosses a river. the rock passes you on its way down, 7.00 s after it was thrown. what is the speed of the rock just before it reaches the water 28.0 m below the point where the rock left your hand? ignore air resistance.