Ineed on these questions asap number 3 and 4

q = mass water (g) * specific of water heat water *delta T.

q = energy (in Joules, "J").

specific heat of water = 4.184 J/g*C (look up value) at 25.0 degrees C.

"delta T" = change of temperate change of the water

= T final - T initial (that is, final temperature minus initial temperature

We are given: 25.0 degrees C (ambient temperature).

Density of water at 25 degrees C = approx 1 g / ml >

so, 25 ml *(1 g/ml) = approx 25 g.

Q = (25 g water) *(4.184 J/g*C)* (26.4 C - 25.0 C)

= (25 g water) *(4.184 J/g*C)* (1.40 C)

= 146.44 --> round to 146 J

it's all four options.

on passing the small ampere of electric current through the tube made of ar and hg of cfl generates uv rays which excites the fluorescent and thus emits the high radiation by consumption of just 5- 12 w in comparison to incandescent light which requires more power such as around 40 - 55 w to lighten.

moreover the life span of fluorescent or cfl is around 8000 h whereas the life span of incandescent is around 1200 h

hence, the building installed with incandescent lights bears more electricity bill.