Electricians should use ladders made of fiberglass rather than metal, because metal ladders
a. conduct electricity.
b. can't be painted.
c. can magnetize an electrician's tools.
d. will mar the surface finish of electrical unit covers.

Aperson gives a shopping cart an initial push along a horizontal floor to get it moving, and then lets go. the cart travels forward along the floor, gradually slowing as it moves. consider the horizontal force(s) on the cart while it is moving forward and slowing. which of the following statements is correct? (a) both a forward and a backward force are acting on the cart, but the forward force is larger. (b) only a forward force is acting which diminishes with time. (c) both a forward and a backward force are acting on the cart, but the backward force is larger. (d) only a backward force is acting, no forward force.

The vapour pressure of benzene is 53.3 kpa at 60.6 °c, but it fell to 51.5 kpa when 19.0 g of a non-volatile organic compound was dissolved in 500 g of benzene. calculate the molar mass of the compound.

Which compound is held together by the electrostatic force between two ions? a. co2 b. cci4 c. h2s d. mgf2