Recent content by triamanda

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    Internal Energy of an Expanding Gas

    Ahhh, I haven't seen that formula! I've got it now, thank you.
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    Internal Energy of an Expanding Gas

    Homework Statement 2 moles of a monatomic ideal gas expands from state A to state B. PA = PB = 600 N/m2, VA = 3.0 m3 and VB = 9.0 m3. i. Calculate the work done by the gas as it expands. ii. Calculate the change in internal energy of the gas as it expands. iii. Calculate the heat added to or...
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    Projectile Motion of Car Problem

    Homework Statement A car is parked on a cliff overlooking the ocean on an incline that makes an angle of 24 degrees below the horizontal. The parking break is defective, so the car rolls from rest down the incline with a constant acceleration on 4m/s2 and travels 50m to the edge of the ocean...
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    Finding Net Force with the Coefficient of Friction

    I believe so: .10(379) = 38 N Thanks!
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    Finding Net Force with the Coefficient of Friction

    Homework Statement A 51kg child goes down a 42 degree slide. What is the normal force on him? If the coefficient of friction is .10, what is the net force on him? How far down does he slide before reaching 2.5 m/s?Homework Equations Fk = μFn F = ma The Attempt at a Solution Fn = 51gcos(42)...