Physics Homework Helpers

Having tutored middle school, high school, and college sciences, there’s no limit to the number of topics that confuse students- especially when it comes to math and logic related exercises in physics and chemistry.

I programmed these physics homework helpers back in 2011, but in 2013 retouched them to work within a responsive website.  You should be able to use them on a phone, tablet, or computer.

Below are the currently available online physics homework helpers:

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  • Michelle

    Calculate the force of gravity on the 1-kg

    mass if it were 3.2×106m

    above Earth’s surface (that is, if it were one and a half Earth radii from Earth’s center). How do I solve this

    • Anson Han

      That’s a Universal Law of Gravity problem. You should be using Fg = G (m1 * m2) / r^2 ; where G = universal gravitation constant, m1 = 1 kg, m2 = mass of earth, r = radius of Earth + 3.2×10^6 m

  • Shaiq

    can -103i-2j-36k has magnitude of 109 but i want to find direction of magnitude (resultant) vector magnitude. how I can its urgent

  • reytchee

    What effect do the ff. forces have in a point?
    A= 100 N , 30° E of N
    B= 200 N , 80° S of E
    C= 150 N , 45° S of W
    D= 175 N , 25° W of N
    E= 50 N, due North

  • Techseighter11

    1. Two forces A and B are acting on an object. A is 3.0 N directed to north and b is 4.0 N, 30˚ north of east. Find the resultant force acting on the object using the parallelogram method.