Which has a greater velocity? a ball rolling down a 3. 4m hill in 8. 5s or a fish swimming upstream, covering 6. 2m in 0. 6 minutes?.

Afixed resistor has the following color bands: orange, red, brown, gold. what is the rated resistance

Respiration involves the breakdown of sugar. this process results in the production of energy for the cell. i'm order for cells to produce the most energy, what gas should be present?

Raul has one solution that is 20% acid by volume and one solution that is 50% acid by volume. he plans to mix together some of each solution to create 30 milliliters of a solution that is 40% acid by volume. how many milliliters of the 20% acid solution should raul use to create the 40% acid solution? can someone explain this to me? i know that the answer is 10 milliliters, but i don't know how to get it.