Part A.What must the charge (sign and magnitude) of a 1.70 gg particle be for it to remain balanced against gravity when placed in a downward-directed electric field of magnitude 660 N/CN/C ? Express your answer in coulombs.   Part B.What is the magnitude of an electric field in which the electric force it exerts on a proton is equal in magnitude to the proton's weight?

Q: In a circus performance, a large 5.0 kg hoop of radius 3.0 m rolls without slipping. If the hoop is…

A:

Q: A small metal sphere has a mass of 0.11 g and a charge of -21.0 nC. It is 10.0 cm directly above an…

A: Given Mass of the each sphere is m=0.11 g=0.11×10-3 kg Charge of each sphere is q=-21.0 nC=-21.0…

Q: Figure P8.74 shows a vertical force applied tangentially to a uniform cylinder of weight w. The…

A:

Q: What is the total current if the total voltage is 180 V? R₁ 20 n ≥30~ 40 R2 R3 MWO

A:

Q: A point charge Q1 = 200 microC, located at (1, -1, -3)m, experiences a force F = 4ax - 4ay + 2az N…

A: Coulomb's law, or Coulomb's inverse-square law, is an experimental law of physics that quantifies…

Q: Solve and arrive the exact answer one of these choices. Make sure your solutions is readable.…

A:

Q: As shown in the figure, the angle between two plane mirrors (M1 and M2) is 125°. If the incident ray…

A: Given, angle of incidence, θ1i = 57° angle between two plane mirror, 125°

Q: A small metal bead, labeled A, has a charge of 29 nC. It is touched to metal bead B, initially…

A:

Q: The dark-adapted eye can supposedly detect one photon of light of wavelength 500 nm. Suppose that…

A: wavelength = 500 nm number of photons per second = 100diameter of pupil's eye = 0.50 cm radius of…

Q: A current of 4.3 A flows through a conductor for 6 s. What amount of charge passes through the…

A: Current, I = 4.3 A Time, t = 6 s Charge, q = ?

Q: Two infinite lines of current, one with current I = 1.5 A into the page and one with current I = 1.5…

A:

Q: Impulse is defined as: (K:1) Select one: O a. a change in momentum O b. total momentum O c. total…

A:

Q: 9. Find curl F and div F given F(x, y, z) = e* siny i+ e sinzj+e² sin x k

A:

Q: An orienteer (a person who uses a map to find things) starts as point A, walks 300 meters North then…

A:

Q: Unpolarized light with an intensity of 100 W/m² passes through two polarizing filters that are…

A: If unpolarized light of intensity I0 passes through polarizer the intensity changes to I02. If…

Q: 5) Two moles of an oxygen gas (O₂) are put in a container with a volume of 0.0025m³. If the…

A: Write the given values with the suitable variables. n=2 molV=0.0025 m3T=305 °C=305+273 K=578 K Here,…

Q: A 64-cd point source of light is 3.0 m away from a painting. What is the illumination on the…

A:

Q: For a greater magnification, should a lens with a larger or smaller focal length be selected?…

A: For greater magnification, should a lens with a larger or smaller focal length be selected.

Q: Item 3-4. A charged particle, passing through a certain region of space, has a velocity whose…

A: Given that the magnitude and velocity of the charged particle remain constant. It means that…

Q: 24.39 Four capacitors with capacitances C₁ = 3.50 nF, C₂ = 2.10 nF, C₂ = 1.30 nF, and C₁=4.90 nF are…

A: Given, C1 = 3.50 nFC2 = 2.10 nFC3 = 1.30 nFC4 = 4.90 nFV = 10.3 V

Q: Two 300-watt, 500 Hz sources are 20 m away from an observer. One source moves at a constant…

A:

Q: One long wire lies along an x axis and carries a current of 41 A in the positive x direction. A…

A:

Q: A bystander hears a siren vary in frequency from 590 Hz to 368 Hz as a fire truck approaches, passes…

A:

Q: A cyclotron designed to accelerate protons has a magnetic field of magnitude 0.630 T over a region…

A:

Q: Estimate the number of photons emitted per second from 1.0 cm² of a person's skin if a typical…

A: GivenA=1 cm2λ=10000 nmT=37°C

Q: A golf course sprinkler system discharges water from a horizontal pipe at the rate of 7200 cm3/s. At…

A: Write the given values with the suitable variables. Q=7200 cm3/s=7200×10-6 m3/sr1=4 cm=0.04…

Q: 1) A 0.5 kg box is attached to an ideal spring with spring constant k=80 N/m. If the spring is…

A:

Q: Which of the following must be true for thin lenses (both converging and diverging lens)? (Hint:…

A: Convex lens is known as converging lens and concave lens is known as diverging lens.

Q: 2) A forklift pushes a 100-kg crate, starting from rest, with a horizontal force of magnitude F. The…

A:

Q: You need a 45 resistor, but the stockroom has only 20 2 and 50 resistors. How can the desired…

A:

Q: The “work function” of the metal lithium is 4.6x10-19 J. If irradiated with light of frequency…

A:

Q: A constant force P = 750 N acts on the body shown during only the first 6 m of its motion starting…

A: Given, Force, F = 750 N  initial speed of the block, u = 0 coefficient of friction, μ = 0.2

Q: 13 A 0.485 kg object connected to a light spring with a spring constant of 22.0 N/m oscillates on a…

A:

Q: An object (of unit inertia) is moving in a potential well U(x) = ax², where a = 1. At t=0 the object…

A:

Q: Determine the wavelength of the maximum amount of radiation emitted by surface at 49 °C. Express…

A: Power = 100 W surface temperature (T) = 49o C = 322 K

Q: R₁ 20~ 30~ R₂ R3 40

A:

Q: 5) a- -a a What is the magnitude of the electric field at the origin produced by a semi-circular arc…

A: In this question we have to find the magnitude of Electric Field at the origin produced by a…

Q: In an RL-circuit, the higher the value of the inductance the rate of change of the current stays the…

A:

Q: A 24-volt battery delivers current to the electric circuit diagrammed below. Find the current in the…

A:

Q: 24.0 V 12.0 V + I Μ R₁ 4.00 Ω 13 3.00 Ω 5.00 Ω Μ R₂

A:

Q: A car is accelerating uniformly as it passes two checkpoints that are 38m apart. The time taken…

A:

Q: Sound travels through a guitar string at 600 m/s, making a sound wave in the air with a speed of 333…

A: Given  Speed of sound wave in guitar string  Vstring = 600 m/s Speed of wave in air  Vair = 333 m/s…

Q: A 120-kg merry-go-round in the shape of a uniform, solid, horizontal disk of radius 1.50 m is set in…

A:

Q: 1000 V 후 3000 $2 10.5 HF

A:

Q: = In the figure the current in resistance 6 is i6 = 1.39 A and the resistances are R₁ = R₂ = R3 =…

A:

Q: 2/242 The coordinates of a particle which moves with cur- vilinear motion are given by x = 10.25t +…

A: Coordinates of a particle is given by x=10.25t+1.75t2-0.45t3y=6.32+14.65t-2.48t2 Differentiate the…

Q: Which of r₁ and ₂ experiences a/2 phase shift? Air Water Air n 1.00 n = 1.33 n = 1.00 r2 Select one:…

A: Which of the r1 and r2 experience lambda/2 shift.

Q: B. Problem Solving. Solve the ff. problems by providing a solution. Round-off your answer to the…

A: Given  Parallel plate capacitor with  Side of plate  L = 3.5 cm  Distance between plates d = 0.50 mm…

Q: A projectile is launched at an angle of 45° with a velocity of 250 m/s. If air resistance is…

A:

Q: Forces F1, F2, and F3 act on the structure of Figure 3 as shown. We wish to put the structure in…

A: Given data: The forces are, F1=20 NF2=10 NF3=5 N The distances are, a=2.0 mb=3.0 mc=1.0 m

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.