Exam 1: Units, Physical Quantities, and Vectors

A teacher sends her students on a treasure hunt. She gives the following instructions: 1) Walk 300 m north 2) Walk 400 m northwest 3) Walk 700 m east-southeast and the treasure is buried there. As all the other students walk off following the instructions, Jane physics student quickly adds the displacements and walks in a straight line to find the treasure. How far and in what direction does Jane need to walk?

In addition to 1 m = 39.37 in., the following exact conversion equivalents are given: 1 mile = 5280 ft, 1 ft = 12 in, 1 hour = 60 min, and 1 min = 60 s. If a particle has a velocity of 8.4 miles per hour, its velocity, in m/s, is closest to

If the eastward component of vector is equal to the westward component of vector And their northward components are equal. Which one of the following statements about these two vectors is correct?

If the magnitude of vector is less than the magnitude of vector , then the x component of is less than the x component of .

If a woman weighs 125 lb, her mass expressed in kilograms is x kg, where x is

What is the sum of 1.53 + 2.786 + 3.3 written with the correct number of significant figures?

What is 56 + (32.00) / (1.2465 + 3.45) written with the correct number of significant figures?