How many joules of heat would be required to heat 0.5 kg of aluminum by 2k? a) 300 j b) 450 j c) 900 j d) 1800 j

C) 900 J

Explanation:

Calculate the heat needed to heat 0.5 kg of aluminum.

As the problem does not tell us that there is a change of state during this process the formula of heat that we must use is

(this value is a constant for aluminum)

The exact amount of heat to heat 0.5 kg of heat is 880 J, but this value could be rounded to the nearest hundred that would be 900 J

find the sum of the two horizontal vectors and the sum of the two vertical vectors

isoceles right angled triangle