Answer:
Work done to pull the piano upwards is 401250 J
Explanation:
Work is done against the gravity to pull the piano upwards
So here we can say that work done is
here we know that
also we know that
H = 75 m
now we have
A student mixed two clear liquids together in a beaker and a solid precipitate formed, this data is shown in the table below . w
hat is the mass of the beaker?
2 answers:
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