A small ferret comes to help Roxie with the rock that is blocking her den. They push with a total force of 90 N moving the boulder a distance of 5m. How much work do they do?​

If a || b and e || f, what is the value of y ?

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.

Calculate the mass of silver needed to react with chlorine to produce 126g if silver chloride?