How much energy is required to vaporize 1.5 kg of copper? (Refer to table of latent heat values.)

This is a characteristic of the elements in the periodic table that shows a pattern. it may increase or decrease across or down the table.

Which of the following contributes to the structural rigidity of cellulose? adjacent glucose polymers are stabilized by hydrogen bonding. glucose residues are joined by (α1→4) linkages. cellulose is a highly branched molecule. the conformation of the glucose polymer is a coiled structure.

If a simple machine aduces the strength of a force, what must be increased? the speed of the input force the work the simple machine performs the size of the simple machine the distance over which the force is applied