Tina is conducting an investigation on bicycle helmet aerodynamics. she is trying to find out what kind of helmet causes the least amount of air resistance. she tested three different helmets, using the same rider each time. she recorded the time it took for the rider to complete one circuit on a track in the table below. helmet time in seconds a 35 b 28 c 41 how could tina get more reliable data for this experiment?

The deserts of the sahara and australia are associated with

Which statement best describes lactic acid fermentation? a. lactic acid fermentation is the first step of cellular respiration. o b. lactic acid fermentation is the final step of cellular respiration. re to berate c. in the absence of oxygen, cells release atp by breaking down lactose into glucose. e der lade res o d. in the absence of oxygen, cells release atp by breaking down glucose into lactate. ar

Graded assignment lab report answer the questions below. which combinations of substances resulted in a chemical change? for each metal that participated in a chemical change, write the type of metal it is, based on your examination of the periodic table. were there any metallic compounds that did not react with either the acid or the base? write the type of metal, based on your examination of the periodic table. make a general statement about the reactivity of the metals in this experiment.