Part A Three identical charges q form an equilateral triangle of side a, with two charges on the x-axis and one on the positive y-axis. Find an expression for the electric field at points on the y-axis above the uppermost charge. Express your answers in terms of some or all of the variables q, a, x, y, and Coulomb constant k. Enter your answers separated by a comma. 1ν ΑΣφ ? Ez, Ey = Submit Request Answer

Q: Vo A 2. Two blocks are on a horizontal, frictionless surface. Block A is moving with an initial…

A:

Q: In proton-antiproton annihilation, a proton and an antiproton (a negatively charged particle with…

A: The mass of each particle is We know that;The speed of light is

Q: When you are flying in a commercial jet, it may appear to you that the airplane is stationary and…

A: This point of view is valid.below the explanation

Q: Multiple Concept Example 9 deals with the concepts that are important in this problem. A grasshopper…

A:

Q: The fundamental wavelength for standing sound waves in an empty pop bottle is 0.88 m. (a) What is…

A:

Q: How many kg · m/s might describe the following everyday phenomena? (Recall that momentum equals the…

A: Formula for Momentum is given by                                                  P = mv…

Q: > A spaceship is travelling at 0.9c of light speed. If the pilot measured his distance to Earth is…

A:

Q: An object placed 12 cm from a concave mirror produces a real image 8.0 cm from the mirror. If the…

A:

Q: CE Lead is more dense than aluminum. (a) Is the buoyant force on a solid lead sphere greater than,…

A:

Q: SI 6. Consider a star of radius R and mass M. Suppose light of wavelength A, is emitted from the…

A: Given: Radius of star is R Mass is M Wavelength is λ

Q: How and when can we say that the law is just?

A: The law is a system of rules that a society or government develops in order to deal with crime,…

Q: When light with a wavelength of 221 nm is incident on a certain metal surface, electrons are ejected…

A: Given: For wavelength λ=221 nm=221×10-9 m the maximum kinetic energy KEmax=3.28×10-19 J Unknown: For…

Q: A motorcycle and a police car are moving toward one another. The police car emits sound with a…

A:

Q: THIS!!! IS !!! WRONG~!!!! so frusterting I have to pay for incorrect answers.

A: Radius of the bigger circle (R) = 18cm = 0.18m Value of net magnetic field at angle 900 (Ba) =…

Q: a) What is the measure of the area of the sofa according to Bob? b) What is the length of Bob’s Bike…

A: Given: rectangular shaped sofa dimension=2m × 1m Movie duration= 2 hours Bob pausing by Alice's…

Q: 11. How much work must be done on an electron to accelerate it from rest to a speed of 0.990c?

A: 11) Initial speed of electrons = 0 msFinal speed of electrons = 0.99 c

Q: What's final answer 1/2 or 1/4. I'm confu

A: Given, a picture that is 4 inches by 6 inches  a space that is 2 inches by 3 inches The scale factor…

Q: A light source simultaneously emits light of two wavelengths, 480 nm and 560 nm, respectively. The…

A: Solution: Given: λ1 = wavelength 1 = 480 nm = 480 x 10-9 m λ2 = wavelength 2 = 560 nm = 560 x 10-9 m…

Q: At At the intersection, a yellow subcompact car with a mass of 950 kg traveling east collides with a…

A: The mass of car is given as, mc=950 kg, The mass of truck is given as, mt=1900 kg, The final…

Q: 4. For the frame and loading shown, determine the reactions at A and F when (a) a = 2 in., (b) a =…

A: To find: Reactions at A and E when (a)=2 in, (b) a =7.5 in

Q: When we look out into the universe, we see into the past. John Dobson, founder of the San Francisco…

A: The statement is correct.

Q: 8.A transformer is to be designed to increase the 40-kV (rms) output of a generator to the…

A:

Q: 5. The loop in Figure has a radius of 12 cm and is in a magnetic field of strength 0.15 T. The loop…

A:

Q: Whta is the Simplest Form Of A Particle?

A: The simplest form of matter is an atom. Atom is the smallest functional unit of matter that forms…

Q: What happens to the mass of water in a pot when it cools, assuming no molecules escape or are added?…

A: Given a pot of water that undergoes cooling. It is given here that, neither molecules of water…

Q: if a object is traveling at -196 m/s ^ then the object is doing what?

A:

Q: Models are particularly useful in relativity and quantum mechanics, where conditions are outside…

A:

Q: Question 29 An object that is 2 cm tall is placed 5 cm to the left of a lens and produces an image…

A: 29) As the image is formed on the right side of lens it means that lens is converging type that is…

Q: Many people have some sense for the SI units describing mass, length, and time. one kilogram is…

A: Given data:  Mass of tennis ball (m) = 0.05 kg Speed (v) = 20 m/s Required: The momentum (P)

Q: speed of the blood nich 1:

A: a) Here we need speed in cm/s so we assume a tiny blood volume crosses the section of the arteriole…

Q: A 23.4 cm -diameter coil consists of 30 turns of circular copper wire 2.6 mm in diameter. A uniform…

A: The given values are,

Q: If Superman travels at half the speed of light, 0.5 c, how tall in meters will he be? Report your…

A: The consequences of Einstein's special theory of relativity is length contraction, mass change, etc.…

Q: 3) An alpha particle has a mass of 6.64648x10-27 and is accelerated to a speed of 2.96x10®m/s.…

A: When a body of mass m moves with velocity v, the momentum of the body is given by the product of…

Q: 2. A particle of mass 1.67 x 10-24 kg travels with velocity 0.65. Compute its rest mass?

A:

Q: 36. The distance to a point source is decreased by a factor of three. (a) By what multiplicative…

A: The distance of source is given as Let Initial distance (r1) = 3r Other distance (r2,) = 3r

Q: he figure shows the graph of vy versus time for an object moving along the x-axis. What is the…

A: The slope of velocity time graph is called the instantaneous acceleration.

Q: Models are particularly useful in relativity and quantum mechanics, where conditions are outside…

A: It is required to explain what is a model.

Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.