Part C At 20°C, what is the magnitude of the electric force between the ions if they are in seawater in which the positive and negative ions each have a concentration of 550 mM? Express your answer with the appropriate units.

Q: Which of the following statement (s) is/are correct? (1) Wk+W = R (2) Wk and U form an…

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Q: A/C to conservation of Final momentum 8 X 2 V₁ + V₂ = 4 Kinetic energy =>> V₁² +Va 2 on solving eqn…

A: According to the conservation of angular momentum Final momentum = Initial momentum

Q: 1. A 50.0 g sample of lead starts at 22°C and is heated until it absorbs 8.7 × 10 J of energy. Find…

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Q: Approximating the eye as a single thin lens 2.70 cm from the retina, find the focal length of the…

A: This problem can be solved using lens formula

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A: Frequency of first string, f = 30 HzFrequency of second string, F = 28 HzRatio of the tension of the…

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Q: A 9,700-kg truck runs into the rear of a 1,000-kg car that was stationary. The truck and car are…

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Q: A farmer hitches her tractor to a sled loaded with firewood and pulls it 20 m along level ground.…

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Q: A charge of q = 2.00 x 10-9 C is spread evenly on a thin metal disk of radius 0.200 m. (a) Calculate…

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Q: aration of 2.50 10 m on which a monochromatic light beam is dires double slit are separated by 2.30…

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Q: 1. (a) Derive an alternative set of SI units for pressure that is equivalent to N/m ². (b) The…

A: Dear student, Since both questions are different as per our company's guidelines we can author only…

Q: 28 Two sounds differ in sound level by 1.00 dB. What is the ratio of the greater intensity to the…

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Q: 24.. BIO Tuning Forks in Neurology Tuning forks are used in the diagno- sis of nervous afflictions…

A: The tuning fork has a frequency f=165 Hz Amplitude A=1.10 mm

Q: Part A If the slits have a separation d=0.0190 mm, what is the minimum distance from the slits to…

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Q: A person has a near point of 40 cm and a far point of 2.0 m. When looking through lenses of focal…

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Q: A boy has lost his toy in the pool. He is able to shine a flashlight on the toy and illuminate it at…

A: In the question it is given that height of the flashlight above the water surface is;h=1.10…

Q: Question 8 An electrical current of 0.5 A flows through a 100 ohm load. How much power is…

A: Electrical current through the load is I=0.5 AResistance of resistor is R=100 ohm

Q: Particle track detectors are used to measure the speed of particles if the lifetime of the particle…

A: The lifetime of the particle X is The length of the tracks is The speed of light is

Q: A skateboarder with his board can be modeled as a particle of mass 72.0 kg, located at his center of…

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Q: (a) An electron and a 0.0400 kg bullet each have a velocity of magnitude 510 m/s, accurate to within…

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Q: A sphere with radius 0.245m has density ϝ that decreases with distance r from the center of the…

A: Radius of sphere                             The density of the sphere,…

Q: #1. In Europe, the voltage is 220 [V] is the peak voltage A) 440 [V]

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Q: In the following diagram, an incoming laser beam strikes mirror M1 at explanation of your reasoning,…

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Q: A point mass of 400 g and a velocity of 2.0 m/s collide elastically with a stationary point mass of…

A: Mass of object 1 is Initial velocity of object 1 is Mass of object 2 is Initially, object 2 is at…

Q: You want to make a solenoid of radius r and length l out of a piece of copper wire of resistance R,…

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Q: A space capsule of mass 445 kg is at rest 2.50 ✕ 107 m from the center of the Earth. When it has…

A: Mass of space capsule (m) = 445 kg is at rest 2.50×107 m from the centre of Earth. It has fallen…

Q: Two sources emit waves that are coherent, in phase, and have wavelengths of 26.0 m. Do the waves…

A: Wavelength, λ = 26 mObservation point 78.0 m from one source and 156 m from the other source.

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A: Iron occupies a unique position on the nuclear energy per nucleon curve, often referred to as the…

Q: As shown below, white light is incident on a prism. For the orange light that emerges, 0₁ = 57°. For…

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Q: In outer space, a rocket ship starts from rest and moves in a straight line with a constant…

A: The space vehicle is initially at rest, that is, Acceleration for time  is Acceleration for the next…

Q: Two springs with spring constants 5 N/m and 15 N/m are attached in parallel to support a hanging…

A: Spring constants of two springs are k1=5 N/mk2=15 N/mstretched distance is x=0.5 m.

Q: hown in the figure below is a device used to detect the presence and sign of charge placed on a…

A: mass of the ball,                          The magnitude of the electric field,…

Q: 4. The heat of combustion of anthracite coal is 11,500 Btu/lb. Estimate the decrease of mass in…

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Q: 4. The platform is rotating about the vertical axis such that at any instant its angular position.…

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Q: 2. For a block sliding down a ramp without friction, draw a diagram that shows clearly that the net…

A: The free-body diagram is;Where;m is the mass the blockg is the acceleration due to gravity is the…

Q: A coin is sitting at the bottom of a glass, 26.7 cm deep below the surface of a clear but unknown…

A: real depth = 26.7 cmapparent depth = 11.3 cm

Q: A circular loop of wire with radius r= 0.0250 m and resistance R = 0.380 Q is in a region of…

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Q: Two springs each with a spring constant of 6 N/m are attached in series to support a weight of 15 N.…

A: Spring constants of two springs are as  and Both the springs are connected in series with each…

Q: Question 6 What is the pressure exerted on the bottom of a 1 metre deep swimming pool by the water…

A: Depth of water ( h) = 1 mDensity of water (ρ) = 1000 kg/m3acceleration due to gravity (g) = 9.8…

Q: A conducting bar of length moves to the right on two frictionless rails as shown in the figure…

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Q: single loop of steel wire, lying flat in a plane, has an area of 8.20 cm² and a resistance of 1.50…

A: Area of the loop ResistanceInitial magnetic FieldFinal magnetic fieldTime interval

Q: A physicist at a fireworks display times the lag between seeing an explosion and hearing its sound,…

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Q: A concave mirror has a focal length of 37 cm. What is the position of the resulting image if the…

A: Solution:Given:f = focal length of concave mirror = -37 cmm = magnification of image = 1/5v = image…

Q: A sinusoidal electromagnetic wave is propagating in vacuum in the -z direction. If this wave carries…

A: Energy is Area is Time is Note:Speed of light is Permeability of free space is Find:Magnitude of…

Q: (10) What are the two completely distinct origins of electric fields in nature? Hint: Only one of…

A: An electric field (E) is a vector field that describes the force experienced by a charged particle…

Q: m) How much energy (in eV) does a photon of red light (1 = 700 nm) have? (h=6.63 1034 Jxs, c = 3.00…

A: Wavelength, l = 700 nm Energy in (eV), E = ?

Q: A neutron collides elastically with a helium nucleus (at rest initially) whose mass is four times…

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Q: # 11. If you double the number of turns and double the length of a solenoid by what factor will the…

A: The inductance of a solenoid is given by the expression

Q: Suppose that stars were born at random times over the last 10e10 years. The rate of star formation…

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Q: Question 3 Using an approximate gravitational force of 10N/kg, and the formula "weight = mass x…

A: Weight  W = 120 NGravitational Acceleration g = 10 N/kgWhat is the mass of an object?

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.