A student lifts their 5 kg backpack 2 meters off the floor. How much work does the student do on the backpack? 5/2= 2.5 J 5 x 2 = 10 W
5/2 = 2.5 W
5 x 2 = 10 J

Answer is in the photo. I couldn't attach it here, but uploaded it to a file hosting. link below! Good Luck!

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congress also has implied powers, which derive from the necessary and proper clause of the constitution and permit congress "to make all laws which shall be necessary and proper for carrying into execution the foregoing powers, and all other powers vested by this constitution in the government of the united states.