A student lifts a 2.0 kg bag of apples one. 5 m above the floor. By how many joules has the potential energy of the bag of apples increased? (Assume g=10 m/s^2) A.) 40 J
B.) 10 J
C.) 20 J
D.) 30 J

30J

Explanation:

Given that a student lifts a 2kg bag of apples 1.5m above the floor . And we need to find out by how many joules the potential energy of the bag of apples has increased . We can find the P.E. by ,

where

Here ,

On substituting the respective values,

Multiply,

This is the required answer!

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i have found an answer to your question but use it as information.

information: because weak acids/bases have low concentration of hydrogen ions, the addition of water has a large impact on the ph. 2. a difference in 1 unit is a 10x difference in concentration for example; a liquid with ph of 3 is 10x more acidic than a liquid with a ph of 4. therefore, a liquid with a ph of 3 is stronger.

best of luck!