Recent content by mkwiatko

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    Multiple choice question involving conservation of energy on inclined planes

    Homework Statement You have a pair of inclined planes such that a block that slides down one can slide up the other without losing any energy in the transition. The inclined planes are both at an angle θ from the horizontal, as shown in the diagram. The inclined plane on the left is...
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    How Fast Must a Bacterium Cling to a Spinning Jet Tire?

    Homework Statement At takeoff, a commercial jet has a speed of 60.0 m/s. Its tires have a diameter of 0.850 m. (a) At how many rpm are the tires rotating? (b) What is the centripetal acceleration at the edge of the tire? (c) With what force must a determined 10-15 kg bacterium cling...
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    Finding acceleration of flea using force analysis

    Homework Statement A flea jumps by exerting a force of 1.20x10-5 N straight down on the ground. A breeze blowing on the flea parallel to the ground exerts a force of 0.500x10-6 N on the flea. Find the direction and magnitude of the acceleration of the flea if its mass is 6.00x10-7...