Which of the following is an example of an allocation decision? |
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a. a hub-and-spoke network is used to ship packages.
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b. a telephone factory is converted to make computers.
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c. an assembly line is used to build cars.
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d. coal is set aside to burn as heating fuel.

You want to move a heavy box with mass 30.0 kg across a carpeted floor. you pull hard on one of the edges of the box at an angle 30∘ above the horizontal with a force of magnitude 240 n, causing the box to move horizontally. the force of friction between the moving box and the floor has magnitude 41.5 n . what is the box's acceleration just after it begins to move