What is the resistivity of a wire if it is subjected to a 2.50✕102 V/m electric field, and has a current density of 4.03✕10-13 A/m2?

Q: Suppose the shiny back of a spoon has a 3.2 cm radius of curvature. Part (a)  Calculate the focal…

A: Given, Radius of curvature of the spoon, R = 3.2 cm

Q: The cosmic microwave background consists of: huge clouds of dark matter interspersed with equally…

A: Cosmic microwave background also known relic radiation. Cosmic microwave background is kind of…

Q: wavelength

A: Answers

Q: Liquid nitrogen has a boiling point of −195.81oC at atmospheric pressure. Express this temperature…

A: Given: Temperature of the boiling point of liquid nitrogen in celsius (Tc) = −195.81oC To find:…

Q: In the figure below, the current in the long, straight wire is I1 = 3.00 A and the wire lies in the…

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Q: A loop of wire in the shape of a rectangle of width w and length L and a long, straight wire…

A: {note: you post multi parts question , i am answering first three subparts }

Q: O 10. A proton moves with an unknown velocity through a magnetic field of 3.45 x 103 T that points…

A: Given: Magnetic field of the proton : B⇀=3.45×10-3 T Force proton experiences : F⇀=2.40×10-15 N

Q: width of 9.0m and a length of 12.0m. The depth of the water is 1.83m. One morning the temperature…

A: GivenWidth of pool, b=9 mLength of pool, L=12 mDepth of pool, h=1.83 mT1=15°C=15+273=288 KHeat…

Q: A 1.212 m radius cylindrical region contains a uniform electric field along the cylinder axis. It is…

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Q: Two vectors are defined as, A = 4 + j1 and B = 2 + j3 respectively. Determine a) the sum and…

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Q: In the figure, a 5.03 g bullet is fired into a 0.539 kg block attached to the end of a 0.878 m…

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Q: A person shouting at the top of his lungs emits aboue 1.0 W of energy as sound waves. What is the…

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Q: The weight of a body is 19.6 newtons. A string is tied to the body and the latter is then raised…

A: Given value--- weight of body = 6 N. acceleration = 3 m/s2.  We have to find--- Tension in the…

Q: 49 2 R2 51 2 R wwww 80 0 37Ω R, LEW 75 0 V R LwR R. 45 2

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Q: A fisherman fishing from a pier observes that the float on his line bobs up and down, taking 2.4 s…

A: Solution:-  To find the speed of the waves you can use the following formula: λ: wavelength of the…

Q: Citics of Uotui OUjccts (magitudc and dncCtion)! = 2 mls in the positive Kx-GKis Ym/s in the positin…

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Q: The figure shows the stress-strain curve for a material. The scale of the stress axis is set by s=…

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Q: Two capacitors, C, = 6.00 µF and C, = 13.0 µF, are connected in parallel, and the resulting…

A: Given data:  Two capacitors are connected in parallel C1 = 6.00 μF C2 = 13.0 μF Battery voltage (V)…

Q: e index of refraction for medium 2 in Figure 3a, assuming medium 1 is air and given the inc s 35.0°…

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Q: A 55.0 g tennis ball was hit by a racket at an angle of 34.9° above the horizontal and travel a…

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Q: A wooden artifact is found in an ancient tomb. Its carbon-14 (146C) activity is measured to be…

A: Let the original activity = AoActivity of C-14 in the woddent artifact (A) = 0.63 AoHalf life of…

Q: A beam of light is emitted 10.0 cm beneath the surface of a liquid and strikes the surface 6.0 cm…

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Q: A spacecraft has a speed of 0.4c relative to Earth. As measured on Earth, the elapsed time between…

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Q: An electric circuit consisting of wires, batteries and resistors is shown. All currents have been…

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Q: What is the force applied to a ball if the momentum increase by 1.91kgm/s every 3.67s? 5.58 N 7.01 N…

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Q: Given the circuit, compute for: 1. equivalent resistance of the circuit 2. total current on the…

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Q: A block slides down a smooth inclined plane with an acceleration of 4.9 m/s? .If the block weighs 49…

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Q: Electric room heaters use a concave mirror to reflect infrared (IR) radiation from hot coils. Note…

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Q: Jack and Jill are playing with a tire swing tied to a tree branch. Jack is standing on one side of…

A: Tire swing completes one complete oscillation when it starts from jack and moves to  Jill and then…

Q: 1. A hollow sphere of inner radius 6.0 cm and outer radius 7.0 cm floats half-submerged in a liquid…

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Q: (c) A stone is thrown horizontally off a 25 m high building. It hits the ground a distance of 20 m…

A: Height of building, h = 25 m Horizontal distance, x = 20 m Initial velocity of the stone, v = ?

Q: Which of the following best describes the limitations of the Lennard-Jones potential? Select one: a.…

A: Intramolecular Forces: Forces that operate within the molecule. For example, in a CO2 molecule, the…

Q: Q2: Find the wavelength of the third line in the Lyman series, and identify the type of…

A: According to our guideline we have to do the first question only.Hope you understand.Thank you so…

Q: For a classroom demonstration, a professor built an RL circuit similar to the one shown in the…

A: Given: V=6.00 vL=4.80 mH =4.80*10-3 HR=2.60 ohm

Q: A circutar.coll (900 turns, radius - 0.145 m) is rotating in a uniform magnetic field. At =0s, the…

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Q: Two thin slits separated by 0.14 mm are illuminated by a monochromatic plane wave, producing…

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Q: A 21-turn circular coil of radius 4.40 cm and resistance 1.00 n is placed in a magnetic field…

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Q: The half-life of beryllium-7 is about 53.3 days. (a) Determine the decay constant for beryllium-7.…

A: Given value--- Half life time = 53.3 days. We have to find--- (a) Determine the decay constant…

Q: What direction is the magnetic force on a current-carrying wire if the current flows to the left in…

A: direction of current in wire =  -x direction direction of uniform magnetic field  =   -z direction

Q: If an electron that’s entering a magnetic field B=2.0 with a velocity of V =2.0x10^7 m/s parallel to…

A: Given value--- Magnetic field B = 0 T. velocity = 2 × 107 m/s. We have to find--- Magnetic force…

Q: A 1,200 watt motor bike can move at a maximum speed of 30 m/s. How much force does the motor exert?

A: Given data:  Power (P) = 1,200 W Maximum speed (v) = 30 m/s Required: Force (F)

Q: The diagram shows a beam of ions of charge, 61 x 10-19 c that are traveling at an unknown speed. The…

A: Given, Mass=5.5×10^5kg Charge=1.61×10^-19c Magnetic field=2.20T Radius=9cm

Q: Two train whistles, A and B, each have a frequency of 519 Hz. A is stationary and B is moving toward…

A: Answer:-  Given  Frequency of source (fs) = 519 Hz  Velocity of sound in air (Vsound) = 350 m/s…

Q: ckey puck slides down a frictionless ramp with an acceleration of 5.00 m/s2. What angle does the…

A: We know that We have given that The hockey puck slides down a frictionless ramp with an acceleration…

Q: What is the pressure change in water going from a 3.4- cm-diameter pipe to a 2.1- cm-diameter pipe…

A: The continuity equation: A1v1=A2v2 v1 is the velocity of the fluid at cross-section A1. v2 is the…

Q: ompute the capillary rise in mm of pure water at 10 Celsius expected in an 0.8 mm diameter tube.

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Q: Your camera’s zoom lens has an adjustable focal length ranging from 55 to 150 mm.   Part (a)  What…

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Q: What is the acceleration of a car that from rest in 2 minutes acquires a velocity of 99 miles/hr?.…

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Q: The light shining on a diffraction grating has a wavelength of 491 nm (in vacuum). The grating…

A: given data wave length = 491 nm angle  = 8.51 degress how many lines per centimeter does the grating…

Q: 2. A 0.6034 m radius cylindrical region contains a uniform electric field that is parallel to the…

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Microscopic view of current

In physics, the term current is expressed as the rate of flow of electric charges across the area per unit time (I=q/t). It propagates along in the direction of the motion of positive charges. When the current is caused by the motion of electrons, the direction of the current is opposite to the flow.