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the pressure change outside a house is +10.00mmHg. the roofhas two halves, each with the area of 61.045m^2, at an angle of 30degrees. what is the magnitude and direction of the net force?
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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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