The acceleration of a rocket traveling upward is given by a = (6 + 0.02s) * m / (s ^ 2) , where s is in meters. Determine the time needed for the rocket to reach an altitude of s = 100n . Initially, v = 0 and s = 0 when t = 0

$The 40-ft-long A-36 steel rails on a train track are laid with a small gap between them to allow for thermal expansion. Determine the required gap & so that the rails just touch one another when the temperature is increased from T_{1} = - 20 deg * F to T_{2} = 90 deg * F . Using this gap, what would be the axial force in the rails if the temperature were to rise to T_{3} = 110 deg * F The cross-sectional area of each rail is 5.1i * n ^ 2$

The 40-ft-long A-36 steel rails on a train track are laid with a small gap between them to allow for thermal expansion. Determine the required gap & so that the rails just touch one another when the temperature is increased from T_{1} = - 20 deg * F to T_{2} = 90 deg * F . Using this gap, what would be the axial force in the rails if the temperature were to rise to T_{3} = 110 deg * F The cross-sectional area of each rail is 5.1i * n ^ 2

September 19, 2022

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The acceleration of a rocket traveling upward is given by a = (6 + 0.02s) * m / (s ^ 2) , where s is in meters. Determine the time needed for the rocket to reach an altitude of s = 100n . Initially, v = 0 and s = 0 when t = 0

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