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Quiz 1 - concerning these vectors is true(a A and B must be...

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Quiz 1 1. The mass of a raindrop is 4 milligrams. Which one of the following statements indicates the correct mass of the raindrop in grams? (a) The raindrop has a mass of 4 × 10 6 grams. (b) The raindrop has a mass of 4 × 10 - 3 grams. (c) The raindrop has a mass of 4 × 10 - 1 grams. (d) The raindrop has a mass of 4 × 10 3 grams. (e) The raindrop has a mass of 4 × 10 - 6 grams. 2. Which one of the following is the longest length? (a) 10 0 meters (c) 10 4 millimeters (e) 10 7 nanometers (b) 10 2 centimeters (d) 10 5 micrometers. 3. Which one of the following quantities is a vector quantity? (a) the age of the earth (b) the mass of a freight train (c) the earth's pull on your body (d) the temperature of hot cup of coffee (e) the number of people attending a soccer game 4. Two vectors A and B are added together to form a vector C . The relationship between the magnitudes of the vectors is given by A + B = C . Which one of the following statements
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Unformatted text preview: concerning these vectors is true? (a) A and B must be displacements. (b) A and B must have equal lengths. (c) A and B must point in opposite directions. (d) A and B must point in the same direction. (e) A and B must be at right angles to each other. 5. A vector F 1 has a magnitude of 40.0 units and points 35.0° above the positive x axis. A second vector F 2 has a magnitude of 65.0 units and points in the negative y direction. Use the component method of vector addition to find the magnitude and direction, relative to the positive x axis, of the resultant F = F 1 + F 2 . (a) 53.3 units, 52.1° below the + x axis (b) 53.3 units, 52.1° above the + x axis (c) 76.3 units, 37.9° below the + x axis (d) 76.3 units, 52.1° above the + x axis (e) 9.23 units, 37.9° below the + x axis...
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