Which of these planets has a giant red spot? saturn jupiter uranus neptune

Cathy is pedaling down a steep hill on her bicycle and wants to be able to coast up the next hill, which is 25 meters high, without pedaling. cathy and her bicycle have a mass of 75 kg. assuming her bicycle is 100% efficient, what would her speed have to be?

Place me with this question is my last question

For waves in the ocean, the medium of the waves is a. air b. water c. energy d. a passing boat