Answer:
0.0001158443168226212 Celcius (significant digits? who cares.....) or about 0.00021 Fahrenheit
Step-by-step explanation:
500g=0.5kg
PE=mgh
PE=(0.5)*(9.81)*(1.5)
PE=7.36J
3% of 7.36 is 0.22J is converted to heat
From there, it's tricky.
I just used a joules to celcius converter to get 0.0001158443168226212 degrees celcius or 0.00021 degrees fahrenheit rise in temp.