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Which quantities are scalars? choose all that apply a. distance b. speed c. acceleration d. velocity
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When the force acting on an object points at least partially in the direction of the motion the work done is considered to be negative
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Two steel balls, each of mass m, are welded to a light rod of length l and negligible mass and are initially at rest on a smooth horizontal surface. a horizontal force of magnitude f is suddenly applied to the rod as shown. determine (a) the instantaneous acceleration a of the mass center g and (b) the corresponding rate at which the angular velocity of the assembly about g is changing with time.
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Echolocation is based on the use of sound...
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