Did changing the angle of the incline affect the following parameters (A)final velocity of the ball
(B) Work
(C)Initial potential energy
(D) Final kinetic energy
For each parameter, explain why it was or not changed, using your data.

Asmall electric heater, immersed in 80g of water in a calorimeter of 40j/k raises the temperature from 10.5 degree celsius to 25 degree celsius in 12 minutes. using the same apparatus with 50g of oil instead of water, it is found that the temperature of oil rises from 7 degree celsius to 27 degree celsius in 10 minutes. find specific heat capacity of the oil.