In the figure Q = 5.8 nC and all other quantities are accurate to 2 significant figures. What is the magnitude of the force on the charge Q? (k = 1/4πε0 = 8.99 × 10^9 N ∙ m^2/C^2)

There is a 30 microcoulomb charge at the origin.  There is a 154 microcoulomb charge on the x axis at x = 4 meters, and a 146 microcoulomb charge on the y axis at y = 4 meters.  What is the magnitude of the net force from the interaction between the charges on the 30 microcoulomb charge at the origin.  Give you answer in Newtons

A hollow conducting sphere with inner radius a=1.0m and outer radius b=2.0m is shown in figure (Figure 1). Say a charge q=7.0nC is placed at the center of the sphere denoted by O. Here m denotes meter and 1nC denotes one nano coulomb or 1×10−9C. coulomb constant is k=8.987×109N⋅m2/C2. and r is the distance from the center. (a) Potential at r=a+b2 is, V=?volt Potential Give your answer up to at least three significance digits. (b) Electric Field at r=a+b2 is E(r)=?N/C Electric field Give your answer up to at least three significance digits (c) Magnitude of the electric Field at r=a2 is E(r)=?N/C Electric field Give your answer up to at least three significance digits.

Answer the following

Four identical charged particles (g = +10.2 µC) are located on the corners of a rectangle as shown in the figure below. The dimensions of the rectangle are L = 65.4 cm and W = 15.1 cm. W L b. (a) Calculate the magnitude of the total electric force exerted on the charge at the lower left corner by the other three charges. 44 Your response is within 10% of the correct value. This may be due to roundoff error, or you could have a mistake in your calculation. Carry out all intermediate results to at least four-digit accuracy to minimize roundoff error. N

Static charges common with humans range from nano- to micro-coulombs. How many excess electrons are needed to create a net charge of -500 nC? If a human has an excess of 1.25 x 1012 electrons, what is his/her net charge in microcoulombs?

What is the magnitude of the force a +20 µC charge exerts on a +3.5 mC charge 42 cm away? Express your answer to two significant figures and include the appropriate units. HẢ ? F = Value Units

Two charges, q₁=3.1 mC and q₂=1.6q₁ are placed along x axis so that q₁ is at the origin and 92 is at point (12.4, 0) cm. Where along the x axis is the net electric field equal to zero? Enter the x-coordinate of the position. Provide your answer in centimeters, with precision of three significant figures.

B Q3 d₁ d₂ d3 d4 Three point charges Q₁ = -2.64 nC, Q2 = 3.24 nC and Q3 = 3.45 nC are shown in the figure. The distance in the figure are: d₁ = 1.10 cm, d₂ = 1.47 cm, d3 = 1.54 cm and d4 = 1.32 cm. The figure is not to scale. Use k=8.99 × 10⁹ Nm²/C². (a) If a proton is released from rest at point *B, how fast is it moving when it is very far away from the three charges? VC = (b) How fast would the proton need to be moving very far away from the three charges to reach *B with a speed of 9.78 x 105 m/s? VD= (c) If an electron is released from rest very far away from the three charges shown, how fast would it be moving at *B? VE = (d) How fast must an electron be moving at *B to come to rest very far away from the three charges? UF =

you pull your t-shirt out of the washing machine and note that 1506 particles have become attached, each of which could be either an electron or a proton. Your t-shirt has a net charge of −3.68 x 10-17 C. (a) How many electrons are attached to your t-shirt? (b) What is the mass of the particles attached to your t-shirt? kg