Q:

When an object with an initial temperature T is placed in a substance that has a temperature S, according to Newton’s law of cooling in t minutes it will reach

0

When an object with an initial temperature T is placed in a substance that has a temperature S, according to Newton’s law of cooling in t minutes it will reach a temperature Tt using the formula Tt = S + (T – S) e(-kt) where k is a constant value that depends on properties of the object. For an initial temperature of 100 and k = 0.6, graphically display the resulting temperatures from 1 to 10 minutes for two different surrounding temperatures: 50 and 20. Use the plot function to plot two different lines for these surrounding temperatures, and store the handle in a variable. Note that two function handles are actually returned and stored in a vector. Change the line width of one of the lines. 

All Answers

need an explanation for this answer? contact us directly to get an explanation for this answer

Ch12Ex13.m

% Plot the cooling temperatures of an object placed in 

% two different surrounding temperatures

time = linspace(1,10,100);

T1 = 50 + (100 - 50)*exp(-0.6*time);

T2 = 20 + (100 - 20)*exp(-0.6*time);

hdl = plot(time,T1,'b-',time,T2,'r-');

xlabel('Time')

ylabel('Temperature')

legend('50 degrees', '20 degrees')

set(hdl(1),'LineWidth',3)

need an explanation for this answer? contact us directly to get an explanation for this answer

total answers (1)

Similar questions


need a help?


find thousands of online teachers now