Recent content by underthebridge

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    Struggling to Solve a Spring + Gravity Problem

    Anyone have any ideas? I'm really bothered by my inability to figure this problem out (><)
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    Struggling to Solve a Spring + Gravity Problem

    I can't seem to wrap my brain around this problem. My prof did an example in class that I completely understood, but when I apply the same technique here my answer is not coming out correctly. A 10-g mass is attached to the end of an unstressed, light, vertical spring (k = 49 N/m) and then...
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    Solving Addition of Forces Involving Adults and Child

    You would want to multiply by the Earth's acceleration, not divide, as you have 85.62 for your mass, and mass * acceleration = weight.
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    Who's using masteringphysics.com here?

    9 as well. Do you have AIM by any chance?
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    Solving Addition of Forces Involving Adults and Child

    B was correct, and makes perfect sense. C is incorrect though as the problem is asking for the weight, not the mass. It gives the acceleration, however, there is no mass given. Since the answer it wants is the weight (in N) that leaves no purpose for the acceleration, as far as I can tell...
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    Solving Partial Fractions Integrals

    calc101.com likes to take extra steps in factoring their answer for integrals, so the answer you may be getting won't look anything like what they have. Makes it tricky half the time to make sure it is the same. I paid the $15 for an account and have never had it give me a wrong answer. In...
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    Gravity force on Jupiter problem

    No problem, it happens :)
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    Who's using masteringphysics.com here?

    Mastering Physics here too, though I'm using Physics with Modern Physics for Scientists and Engineers, Third Edition by Wolfson and Pasachoff.
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    Gravity force on Jupiter problem

    And what I'm telling you is the mass of the watermelon doesn't change because it is now on Io. The weight changes because the acceleration due to gravity changes, the mass remains the same.
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    Solving Addition of Forces Involving Adults and Child

    Yep. I know, it is horrid haha. I'm going to give part C a shot.
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    Solving Addition of Forces Involving Adults and Child

    Two adults and a child want to push a wheeled cart in the direction marked x in the figure (attached). The two adults push with horizontal forces F1 and F2 as shown in the figure (attached). A) Find the magnitude of the smallest force that the child should exert. You can ignore the effects of...
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    Gravity force on Jupiter problem

    Your mass, my mass, mass of object x, etc. is going to be the same whether you're on the Earth, the moon, Io, etc. It is the weight that changes depending on your location's acceleration due to gravity. As it stands you have enough info to solve for the mass of the watermelon on Earth...
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    Flying: Calculating Wind Direction from Airspeed & Ground Speed

    You are flying in a light airplane spotting traffic for a radio station. Your flight carries you due east above a highway. Landmarks below tell you that your speed is 57.0 m/s relative to the ground and your air speed indicator also reads 57.0 m/s. However, the nose of your airplane is pointed...
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    To Swim From A to B, U_s = 1.35 km/h

    Has anyone had any luck with this problem?
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