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

false because ozone (o3) depletion does not cause global warming, but both of these environmental problems have a common cause: human activities that release pollutants into the atmosphere altering it.

global warming is caused primarily by putting too much carbon dioxide into the atmosphere when coal, oil, and natural gas are burned to generate electricity or to run our cars.

explanation: