On which of the following objects will earth exert a greater gravitational pull than on a pencil? a. a toothpick b. a piece of paper c. a paper clip d. a stapler

In a given chemical reaction, the energy of the products is greater than the energy of the reactants. which statement is true for this reaction?

The substances that are necessary for producing of certain hormones and that store and transport vitamins

Three resistors are connected in series across a 15-v power supply. if the potential drops across resistors 1 and 2 are 4.1 volts and 3.1 volts, what is the exact potential drop (in volts) across resistor 3?