Arectangular tank with a square base is constructed from 5 mm steel plates. if the capacity required is eight cubic metres determine the optimum dimensions if the tank has: i. a closed top ii. an open top.

Express the following number in scientific notation. 0.026890 =

Acamcorder has a power rating of 17 watts. if the output voltage from its battery is 7 volts, what current does it use?units:

16. in a reaction that has reached equilibrium, a. the forward and reverse reactions are occurring at the same rate. b. the reactants and products are in equal concentrations. c. the forward reaction has gone further than the reverse reaction. d. there are equal numbers of atoms on both sides of the equation. e. a, b, and d are correct.