Physics, 09.03.2021 06:30 eddiewoods8505
There is a bell at the top of a tower that is 45 m high. The bell has 450J of energy. Calculate the mass.
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Iron reacts with sulfur to form iron sulfide. if 60 grams of iron reacts with sulfur to produce 90 grams of iron sulfide, how much sulfur has been used in the chemical reaction?
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Physics, 21.06.2019 22:50
Calculate the heat capacity per object when the total energy is 4 quanta. (think of this in terms of increasing from 3.5 quanta of energy in the system to 4.5 quanta of energy in the system, if that were possible.) c4 = __ j/k/object
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Physics, 22.06.2019 14:30
Aweight lifter raises a 1600 n barbell to a height of 2.0 meters. how much work was done? w = fd a) 30 joules b) 3000 joules c) 320 joules d) 3200 joules
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Physics, 22.06.2019 16:00
What is friction? how does it affect the motion of an object?
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There is a bell at the top of a tower that is 45 m high. The bell has 450J of energy. Calculate the...
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