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At the Earth's surface, a projectile is launched straight up at a speed of 10.3 km/s. To what height will it rise? Ignore air resistance and the rotation of the Earth.
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A projectile is launched at an angle of 13.0° above the horizontal. What is its initial speed if it hits a target that is located a horizontal distance of 155 m from the launch point and 10.5 m below the launch level?
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