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Constant force of 5.60 N acts on a 2.80 kg object for 10.0 s. What are the changes in the object's momentum? -N·s? A 2.28-L flask is filled with propane gas (C3H8), at 1.00 atm and -13.7°C. What is the mass of the propane in the flask? Could we theoretically live on Venus? What mass of protons would be required to just neutralize the charge of 3.7 g of electrons? Please teach me how to prove the first equation in the photograph.
This is graduate school’s entrance examination problem.?