Which method will correctly determine whether the forces on an object are balanced or unbalanced? multiply the forces in the horizontal direction by the forces in the vertical direction. add all of the horizontal forces together, and add all of the vertical forces together. subtract the forces in the horizontal direction from the forces in the vertical direction. subtract the forces in the vertical direction from the forces in the horizontal direction.
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The illuminance of a surface varies inversely with the square of its distance from the light source. if the illuminance of a surface is 120 lumens per square meter when its distance from a certain light source is 6 meters, by how many meters should the distance of the surface from the source be increased to reduce its illuminance to 30 lumens per square meter?
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Scientists and engineers design new technologies to solve problems. often, a new technological design will contain a flaw. which of the following is true about such a flaw? a. it should be studied so that the design can be fixed or a new design can be proposed. b. it means that the problem being investigated cannot be solved. c. it means that the people who proposed the design should not be scientists or engineers. d. it makes the technological design useless.
Answers: 1
Which method will correctly determine whether the forces on an object are balanced or unbalanced? m...
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