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Tech and Engineering
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13.02.2023 - 02:00
Spiderman is standing on the edge of a rooftop 100 mathrm{m} above a swimming pool. He decides to jump in to cool off, so he springs out at a velocity of 30 mathrm{m/s} at an angle of 35 degrees above the horizontal. The near edge pool is located 127
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Tech and Engineering
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28.01.2023 - 12:57
A skydiver jumps out of a helicopter and falls freely for 13.5 s before opening the parachute. What is the skydivers speed (in m / s) when the parachute opens?
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Tech and Engineering
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22.01.2023 - 18:28
A water balloon launched from the roof of a building at time t = 0 has vertical velocity v(t) = -32t + 40 feet/sec at time t seconds, with v > 0 corresponding to upward motion. (a) If the roof of the
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Tech and Engineering
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07.01.2023 - 23:15
A solid ball and a hollow ball, each with a mass of 2 kg and radius of 0.1 m, start from rest and roll down a ramp of length 2 m at an incline of 34 degrees. An ice cube of the same mass slides withou
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Tech and Engineering
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18.12.2022 - 21:55
In the annual battle of the dorms, students gather on the roofs of Jackson and Walton dorms to launch water balloons at each other with slingshots. The horizontal distance between the buildings is 36.0 m, and the heights of the Jackson and Walton building
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Tech and Engineering
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17.12.2022 - 20:05
A light plane attains an airspeed of 491 km/h. The pilot sets out for a destination 785 km due north but discovers that the plane must be headed 20.5 east of due north to fly there directly. The plane
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Tech and Engineering
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27.07.2022 - 08:26
A baseball player hits a pop fly that goes directly up in the air with an initial velocity of 45 mathrm{m/s}. What is the maximum height the base ball reaches?
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