Physics-Please help!

posted by .

I don't want someone to do this for me-I'm just totally lost and don't even know where to start-I'm totally lost on this one- the earth is surrounded by an electric field with a strenth of 100 N/C at the surface. Its electric properties are the same as a point charge located at its center. How would the gravatational force and electrical force compare foor an electron at earth's surface. Compare magnitude and direction.
I don't know where to even start-this is a high school Physics, not AP, and I have the formulas but I don't know where I find the point charge etc to work with-Any help-thank you

  • Physics-Please help! -

    Relax. This is pretty easy. Not even AP

    The electrical force on an electron at the Earth's surface is
    F_e = E*e ,
    where
    e is the electron charge and E is the field strength they gave you.

    The gravitational force on an electron at the same place is
    F_g = m_e*g
    where m_e is the mass of the electron and g is the acceleration of gravity.

    You should know where to look up e, m_e and g.

    Compute and compare the two forces.

  • Physics-Please help! -

    Now that doesn't look so hard-
    Thanks for breaking it into smaller steps for me

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Physics

    A charge of 28.0 nC is placed in a uniform electric field that is directed verticall upward and that has a magnitude of 4.00*10^4 N/C. What work is done by the electric force when the charge moves (a)0.450 m to the right (b) 0.670 …
  2. Physics

    A paralle plate air capacitor has a capacitance of 500.0 pF and a charge of magnitude 0.200 uC on each plate. The plates are 0.6 mm apart. (a) What is the potenetial difference between the plates?
  3. Mathematics

    (2x)^2(3x)^3=3.548E82 How do I even do this type of math problem am just totally lost here?
  4. Chemisty

    Im totally lost on how to do redox reactions. Can any one show me the steps on how to do MnO4-1 +C7H60 => Mn2 +c7H6O2?
  5. Physics

    Please help- A small fish is dropped by a pelican that is rising steadily at 0.50 m/s. How far below the pelican is the fish after 2.5 s?
  6. Physics-Please check and I need help

    Please help set this up- A person goes into the electric field and has an object with a charge value of 4.2E-6C. At a distance of 10m from the object that's responsible for the elctric field, the person sees a force of 8.0N on the …
  7. Physics-Totally lost

    I'm totally lost on this one- the earth is surrounded by an electric field with a strenth of 100 N/C at the surface. Its electric properties are the same as a point charge located at its center. How would the gravatational force and …
  8. ALG@ NEED HELP PLEASE

    Explain how to factor the following trinomials forms: x2 + bx + c and ax2 + bx + c. I am totally lost still I read and read and the concept is lost in my head. Can someone please help me?
  9. math

    the function f is defined: f(x)= x+3 if -2<=x<1 9 if x=1 -x+2 if x>1 a. find the domain b. locate the intercepts I am totally lost, can someone please help me with this?
  10. Chemistry

    If the Ka of a monoprotic weak acid is 4.5x10^-6 what is the pH of a .10M solution of this acid. I don't even know how to start this problem, I'm totally lost please help!

More Similar Questions