A parallel-plate capacitor is charged by being connected to a battery and is kept connected to the battery. The separation between the plates is then doubled. How does the electric field change? The charge on the plates? The total energy?

Q: (7) A charge of 40 μC is uniformly distributed throughout a solid insulating sphere of radius 40 cm.…

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Q: 12.A sinusoidal electromagnetic wave has a peak electric field of 8.00 kV/m. What is the average…

A: Given data:  The peak electric field (Emax) = 8.00 kV/m Required: The average intensity of the wave

Q: synthesis problems SP1. Suppose that the input piston of a hydraulic jack has a diameter of 2 cm and…

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Q: Suppose that the radius of the circular path is r when the speed of an airplane is v and the…

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Q: Problem 1: A scientist measuring the resistivity of a new metal alloy left her ammeter in another…

A: Given, The length of the wire, L=6.5 m The diameter of the wire, D=2×10-3 m The magnetic field,…

Q: Write two differences between binary fission and multiple fission in a tabular form.

A: Binary fission:- fission means splitting up, here we get two daughter cells from a parent cell , the…

Q: What is the electric potential at point P in the diagram below? a. 4kq/r b.3kq/r O c. kq/r d.2kg/d…

A: Given data:  Two point charges at two corners of the triangle q1 = +7q and q2 = -3q The charges have…

Q: A hydraulic lift is used to lift a car that weighs 1200 kg. The foot pedal is attached to a piston…

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Q: A projectile is launched from the origin with an initial speed of 26.4 m/s at an angle 23.00 above…

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Q: Two point charges 2.0 cm apart have an electric potential energy -170 μJ. The total charge is 34 nC.…

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Q: The plates of an air-filled parallel-plate capacitor are 3.20 mm apart, and each has an area of 3.80…

A: Given data:  An air filled parallel plate capacitor Distance (d) = 3.20 mm = 3.20×10-3 m Cross…

Q: A 100-pound weight hangs from two cables that are attached to the ceiling, and it is in static…

A: Given data-  Weight w=100 pound  Cable 1 makes angle=50°  Cable 2 makes angle=30°

Q: (Figure 1) shows a metal advertising sign of weight w suspended from the end of a horizontal rod of…

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Q: Which of the following factors affect the strength of force experience by a current carrying conduct…

A: Below I have provided the solution of the given question

Q: A metal rod is resting on top of two 4.00 m long conducting rails that are separated by 1.8 m. The…

A: The magnetic force on the rod is given by F→=il→×B→ Using the right hand hand thumb rule, the…

Q: A block is tied to a spring and is oscillating with an amplitude of A = 16 cm. The angular frequency…

A: We have given,  Ampitude A = 16 cm = 16×10-2 m  Angular frequency ω= 6 rad/sec

Q: A hollow cylinder 1 m in diameter and 2 m high weighs 3825 N. a.) how many kN of lead weighing 110…

A: a) Let a volume V meter cubed of lead be fastened outside the cylinder. Now the total volume of…

Q: What will be the mass of water that is stored in a  cubical box with a side of 3 m?  The density of…

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Q: Three resistors are in parallel. Their combined resistance is 5.0 ohms. One has a resistance of 10…

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Q: solenoid with 525 turns has a length of 5.50 cm and a cross-sectional area of 3.00 ✕ 10−9 m2. Find…

A: number of turns = N = 525 length = l = 5.5 cm area = A = 3 X 10-9 m2

Q: A Mercedes-Benz 300SL (m = 1700 kg) is parked on a road that rises 15° above the horizontal. What…

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Q: A proton moves with a velocity of = (21 - 4j+ k) m/s in a region in which the magnetic field is B =…

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Q: Two long parallel wires 79.4 cm apart are carrying currents of 12.6 A and 28.1 A in the opposite…

A: Given data:  Distance between the wire (d) = 79.4 cm = 0.794 m Currents in the wires I1 = 12.6 A and…

Q: (3) A point charge (q) with mass (m=1 gram) moving in a region where the electric field is given by…

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Q: A 2.01-kg ball traveling east at 17.8 m/s collides with 3.35-kg lump of coal moving west at 11 m/s.…

A: Given, Mass of ball (mb ) = 2.01kg  Initial velocity of ball ( ub) = 17.8 m/s (east)  Velocity of…

Q: 3. The period of a sound wave from a piano is 1.20 × 10-³ s. If the speed of the wave in the air is…

A: Given: The time period of the wave is 1.2x10-3 s. The speed of the wave is 3.4x102 m/s.

Q: A beam of doubly charged negative ions with a number density of 2.7 × 1018 cm−3 is traveling north…

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Q: The figure shows a uniform 66-g wire bent into a right triangle with L = 13.1 cm and H = 8.5 cm.…

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Q: An example of Simple Harmonic Motion is a guitar string and the equation x(t) = wt + ø can be…

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Q: If a 0.6 kg object hanging from a spring stretches it by 0.55 m, then by how much will the spring be…

A: Given data:  Original mass (m) = 0.6 kg Stretch in the spring (x) = 0.55 m New mass (m') = 1.2 kg =…

Q: The tympanic membrane, or eardrum, is a structure that separates the external and middle parts of…

A: The maximum pressure the membrane can tolerate is the pressure corresponding to the maximum force.…

Q: The Temperature of a blackbody increases from 200°C to 400° C. What is the change in the frequency…

A: Using the Wiens displacement law. λmT=constant=0.2898⇒λm1T1=λm2T2 Converting the wavelength into…

Q: If we have a ring of radius a with charge Q, the electric field produced by this ring at a distance…

A: Given: Electric field by the charged ring is at distance x on its polar axis is,  E =…

Q: .Two weights are hung over two frictionless pulleys. What weight W will cause the block to just…

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Q: A man pushes a lawn mower on a level lawn with a force of 192 N. If 45% of this force is directed…

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Q: An object is thrown vertically upwards with an initial velocity of +5 m/s and then comes back down.…

A: Given data:  A object is thrown vertically upward Initial vertical velocity (u) = +5 m/s Air…

Q: A 75 kg astronaut brings a standard bathroom scale with him into space. What does the scale read if…

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Q: A stationary positive charge +Q is located in a magnetic field B, which is directed toward the right…

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Q: A typical geosynchronous spacecraft requires 15 m/s/yr for orbital stationkeeping and momentum…

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Q: A particle with charge -3.3 nC is at the origin, and a particle with negative charge of magnitude Q…

A: Given Charge at origin = q1 = -3. 3 nC Charge on x-axis at 49.5 cm = q2 = -Q Charge on x-axis at 19.…

Q: The hydrogen spectrum is complex. When a hydrogen atom absorbs a photon, it causes the electron to…

A: Below I have provided the solution of the given question

Q: Imagine you are a spectroscopist in 1940, looking at x-rays from a stellar object. You see a…

A: Given that wavelength λ = 0.034 nm Assume this as Kα line

Q: (c) At a coordinate position of 5.40 m, the Eskimo lets up on the applied force. A friction force of…

A: A)   Given -                          massM = 50 kg                          force F = 55 N…

Q: Consider the current-carrying wire shown in the figure. The current creates a magnetic field at the…

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Q: Use the worked example above to help you solve this problem. A wheel rotates with a constant angular…

A: c) we use the formula ωf=ωi+αt

Q: Calculate the first derivative of the function f(x) = 2x e -X at the point x=1.19. Express the…

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Q: s) The Young's modulus is a property of the material and does not depend on the size or shape of an…

A: The Young's Modulus of a material is a fundamental property of every material that cannot be…

Q: Let's work through an example to find the power output of a motor. An electric motor is used to run…

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Q: An AC source operating at 60 Hz with a maximum voltage of 172 V is connected in series with a…

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Q: (Figure 1) shows a metal advertising sign of weight w suspended from the end of a horizontal rod of…

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Dielectric Constant Of Water

Water constitutes about 70% of earth.  Some important distinguishing properties of water are high molar concentration, small dissociation constant and high dielectric constant.

Electrostatic Potential and Capacitance

An electrostatic force is a force caused by stationary electric charges /fields. The electrostatic force is caused by the transfer of electrons in conducting materials. Coulomb’s law determines the amount of force between two stationary, charged particles. The electric force is the force which acts between two stationary charges. It is also called Coulomb force.