0. Due Friday 2. Solve the heat flow equation for a long strip of width 10 cm where the side corresponding to x = 0 is initially at 0 degrees and the side corresponding to x = 10 is initially at 50 degrees. You may assume the solution u = u(x, t), that is, the solution does u not depend on y. Show all work. 30 l 50° 10cm

Find the constant of proportionality. y is directly proportional to x. If x=30, then y=15.

The kinetic energy E of an object varies jointly with the object’s mass m and the square of the object’s velocity v . An object with a mass of 50 kilograms traveling at 16 meters per second has a kinetic energy of 6400 joules. What is the kinetic energy of an object with a mass of 70 kilograms traveling at 20 meters per second?

Find the constant of proportionality. z is directly proportional to the sum of x and y. If x=2 and y=5, then z=28.