Aball of radius r rolls on the inside of a track of radius r. if the ball starts from rest at the vertical edge of the track, find an expression for its speed (using terms g, r, and r) when it reaches the lowest point of the track, rolling without slipping? do not assume that the ball radius r is small in comparison to the track radius, r.
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Which terms describe the purpose of antennas on devices that use radio waves? transmit and receivemodify and amplifyamplify and receivemodify and transmit
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Find the dimensions and area of the largest rectangle that can be inscribed in the upper half of the ellipse. (give your answers in terms of a and b. enter the dimensions as a comma-separated list.)
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Suppose that 27 j of work is needed to stretch a spring from its natural length of 6 m to a length of 9 m. (a) how much work is needed to stretch the spring from 12 m to 14 m? j (b) how far beyond its natural length will a force of 78 n keep the spring stretched?
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Scientific models are based on current knowledge, which can limit their effectiveness when new discoveries are made.
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Aball of radius r rolls on the inside of a track of radius r. if the ball starts from rest at the ve...
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