Jane's brother andrew leaves home for school at 8: 00 am. he walks at 3.3 kph. at 8: 20 am jane discovers that andrew has left his homework at home. she decides to follow him on her bicycle and give him his homework, but she wants to be back home in time for an online test at 9 am. what is the minimum constant speed at which she needs to ride? (hint: at what time of day will they meet? ) jane must ride at least kph.

Natural forces that can alter ecosystems include seasons and climate changes. t or f

Achemistry student needs of 40ml diethylamine for an experiment. by consulting the crc handbook of chemistry and physics, the student discovers that the density of diethylamine is 0.7 . calculate the mass of diethylamine the student should weigh out. round your answer to significant digits.

Solar cell a produces 100 joules of energy, when a light source is shown on it for 3 minutes. solar cell b produces 200 joules of energy when the same light source is shown on it for 5 minutes. which solar cell works better? a) solar cell b, because it produces more energy. b) solar cell b, because it generates more power. c) solar cell a, because it produces energy quicker. d) solar cell a, because it generates a greater wattage. eliminate