PHYS 218 Midterm: Texas A&M Physics 218 Exam1_2010_solutions
Document Summary
Do not fill out the information below until instructed to do so! All work must be shown to get credit for the answer marked. Put your initials here after reading the above instructions:__________ Table to filled by the graders. Part 1: basic ideas of units, conversions, and vectors. Problem 1. 2: given the following approximate conversion equivalents: 1 barrel = 42 us- gallons, 1 us- gallon = 3. 78 liters, 1 im- gallon (imperial gallon) = 4. 55 liters. 1 barrel of crude oil = 0. 47 barrel of gasoline = 0. 47 42 us - gallons. 0. 47 42 us gallons = 987 miles. Problem 1. 3: a vector of magnitude 7 meters has a direction as shown in the figure below. Question 1. 3. 1: (1p) find the x and y components of the vector. Ax = 7 sin(29 ) meters = - 3. 393 meters. Ay = +7 cos(29 ) meters = 6. 122 meters.
