ASAP HELP PLSSS! Marlene puts a 87.78 g block of brass into boiling water at 100.1°C until it is hot. She then places the brass block into a bath of 142.16 g of cold water whose temperature was 10.4°C. The final temperature of everything was 18.7°C. A) What is the original temperature of the cold water?
B) What is the final temperature of the cold water?
C) What is ∆T for the water?
D) How much heat did the cold water gain?
E) How much heat did the brass block lose?
F) Use the formula for heat given above and solve it for “c” the specific heat. G) What is the mass of the block of brass?
H) What is ∆T for the block of brass?
I) Now calculate the specific heat of brass.
J) Where did Marlene put the block of brass?

Order the measurements from the least to the greatest. 2,720 ml , 24.91 l , 0.0268 kl

Acaterer knows he will need 60, 50, 80, 40 and 50 dinner napkins on five successive evenings. he can purchase new napkins initially at 25 cents each, after which he can have dirty napkins laundered by a fast one-day laundry service (i. e., dirty napkins given at the end of the day will be ready for use the following day) at 15 cents each, or by a slow two-day service at 8 cents each or both. the caterer wants to know how many napkins he should purchase initially and how many dirty napkins should be laundered by fast and slow service on each of the days in order to minimize his total costs. formulate the caterer’s problem as a linear program as follows (you must state any assumptions you make): a. define all variables clearly. how many are there? b. write out the constraints that must be satisfied, briefly explaining each. (do not simplify.) write out the objective function to be minimized. (do not simplify.)

Which of the following statements are true about the graph of f (x) = 1/4 coz ( x + π/3) - 1? select two of the following that apply.