2. A 10.0-mL sample of liquid is pipetted into a 125-mL flask with stopper. The mass of liquid is found to be 7.988 g. Refer to Example Exercise 3.1 and calculate the density of the liquid.

Which statement best describes the relationship between period and frequency of light waves? a) in wave b the period increases and the frequency decreases from wave a. b) in wave a the period increases and the frequency decreases from wave b. c) in wave b the period is shorter and the frequency is greater than in wave a. d) in wave a the period is shorter and the frequency is greater than in wave b.

Describe the interaction that occurs between two objects with the same electrical charge.

Asubstance is a good conductor of electricity which of the following best explains a probable position of the substance in a periodic table