Physics

posted by .

1) Charges of +4uC and -6uC are placed at two corners of an equilateral triangle with sides of 0.10m. At the third corner, what is the electric field magnitude created by these two charges?
A]4.5 x 10e6 N/C
B]3.1 x 10e6 N/C
C]1.6 x 10e6
D]4.8 x 10e6

2)A +2.0 nC pont ahrge isplaced at one corner of a square (1.5m on each side), and a -3.0 nC charge is placed on a corner diagonally away from the first charge. What is the magnitude of the electric fled at either the two unoccupied corners?
A]20 N/C
B]14 N/C
C]4 N/C
D]12 N/C
E]8 N/C

  • Physics -

    Both problems involve the adding of two vectors. Get the magnitude of each vector using Coulomb's law.

    You should make an effort to do these yourself.

    In problem 2), you end up adding two perpendicular E-field vectors with magnitudes
    k*2*10^-9/(1.5)^2 and
    k*3*10^-9/(1.5)^2
    The magnitude is, from the Pythagorean Theorem,
    (k/2.25)*10^-9 sqrt13
    Using 9.0*10^9 for k, I get 14.4 N/C

  • Physics -

    4.8 x 10^6 N/C

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. physics2

    Charges are placed on an equilateral triangle (all angles are equal and equal to 60 degrees). The length of each side of the triangle is 5.7 meters. A charge of +7.1 micro-Coulombs is placed at the bottom corner of the triangle and …
  2. physics

    The physics of electric potential energy at one corner of a triangle. Two charges, q1 = +5.0 ìC and q2 = -2.0 ìC are 0.50 m apart. A third charge, q3 = +6.0 ìC is brought from infinity to a spot 0.50 m from both charges so that …
  3. Physics

    Three point charges have equal magnitudes, two being positive and one negative. These charges are fixed to the corners of an equilateral triangle, as the drawing shows. The magnitude of each of the charges is 4.0 µC, and the lengths …
  4. Physics

    Three point charges have equal magnitudes, two being positive and one negative. These charges are fixed to the corners of an equilateral triangle, as the drawing shows. The magnitude of each of the charges is 4.0 µC, and the lengths …
  5. physics

    HELP HELP HELP Two tiny objects with equal charges of 83.0 µC are placed at two corners of a square with sides of 0.320 m, as shown. How far above and to the left of the corner of the square labeled A would you place a third small …
  6. physics

    HELP HELP HELP Two tiny objects with equal charges of 83.0 µC are placed at two corners of a square with sides of 0.320 m, as shown. How far above and to the left of the corner of the square labeled A would you place a third small …
  7. physics

    Four charges are placed at the four corners of a square of side 15 cm.The charges on the upper left and right corners are +3 uC and -6 uC respectively. The charges on the lower left and right corners are -2.4uC and-9 uC respectively. …
  8. physics

    Two point charges are placed at two of the corners of a triangle (Take q1 = -10.2 µC, and q2 = 16.3 µC.) Find the magnitude and the direction of the electric field at the third corner of the triangle.
  9. physics

    Charges of 4.0 µC and -6.0 µC are placed at two corners of an equilateral triangle with sides of 0.10 m. At the third corner, what is the electric field magnitude created by these two charges?
  10. physics

    Three equal positive point charges q are at the corners of an equilateral triangle with sides of length a. What is the magnitude and direction of the electric field at one corner of the triangle due to two charges placed on another …

More Similar Questions