How many calories are equal to one btu? (one calorie = 4.186 j, one btu = 1 054 j.)
a. 0.252b. 3.97c. 252d. 397

Explanation:

We need to find how many calories is 1 BTU.

Given

          1 BTU = 1054 J

          1 calorie = 4.186 J

So we have

          1 BTU = 4.186 x 251.79 J

          1 BTU =251.79 calorie

          1 BTU = 252 calorie.

Option C is the correct answer.

distance = 150m

displ = root (50 ^2 + 100^2)

root(2500+10000)

root 125000