(a) Write an initial value problem that will describe the change in the temperature of the coffee, T, as a function of time t measured in minutes. (b) Solve the initial value problem in part (a). (c) How long will it take for the coffee to cool off to 75â—¦ F?

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2

= initial pressure

= final pressure = 2

= initial volume

= final volume = /4

= initial temperature = 20 c = 20 + 273 = 293 k

= final temperature = ?

using the equation