Vienna

in 1920 the record for a certain race was 45.7 seconds. In 1930, it was 45.4 seconds. Let R(t)= the record in the race and t = the number of years since 1920. Find the linear function that fits the data.R(t)=__ (round to nearest hundreth. What is the pred...

A 226 g sample of brass at 105◦C is placed in a calorimeter cup that contains 283 g of water at 29◦C. If you disregard the absorption of heat by the cup, what will be the final temperature? Assume the specific heat of brass is 376 J/kg ·◦ C, and the speci...

how do i solve this ?226 * 376 * (105 - t) = 283 * 4180 * (t - 29) i solved it and got the answer, but its not right.

10+x=75 How do you solve this?

Cp = 0.49 J * K^-1

OH, It also says "I'm thin"