You carry a 20.n bag of dog food up a 6.0 m flight of stairs. how much work was done

N-m

Explanation:

Work done is equal to the product of  mass of an object and the distance by which it is displaced.

Hence, mathematically the relationship between work done (W), Mass of an object (M) and its displacement (D) is equal to

Substituting the given values in above equation, we get -

N-m

Hence, work of N-m is done here

yes its like the dead sea which is full of salt which makes you stay afloat

so yes an egg will float in salt

both anaerobic and aerobic respiration use glucose (or other carbohydrates), proteins and lipids to produce atp and nadh. cell uses those energy molecules, obtained from food and   breaks them down during the chemical reactions of respiration. in anaerobic respiration, nadh is regenerated to nad+ by enzymes lactate dehydrogenase (lactate is produced, e.g. in muscle cells) or by alcohol dehydrogenase where ethanol is produced (alcohol fermentation), while in aerobic respiration, electrons from nadh are deposited in the mitochondria to regenerate nad+ (electron transport chain. anaerobic respiration produces 2 atp per molecule of glucose compared to aerobic respiration where about 38 atp molecules are produced.