PHYS 2401 Midterm: PHYS 2401 TTU 2401 002 syl Fall 12
Document Summary
August 6, 2009: write all of your answers on separate sheets of paper. You can keep the exam questions when you leave. You may leave when nished: you must show enough work to justify your answers. Unless otherwise instructed, give exact answers, not approximations (e. g. , 2, not 1. 414): this exam has 10 problems. In each part, nd the general solution of the di erential equation, or solve the given initial value problem. You must show the steps in solving the equation by one of the methods given in class, you can"t just write down the answer. A soda can at a temperature of 35 is placed in a room that is at 75 . Give an numerical answer that is accurate to two decimal places. In each part, nd the general solution of the di erential equation, or solve the initial value problem. 4y + 3y = 0, y(0) = 2, y (0) = 1. y .
