The resistance of a uniform copper wire 50.0 meters long and 1.15 mm in diameter is 0.830 ohms at 20° Č. What is the resistivity of the copper at this temperature?

Q: Find the momentum A car that has a mass of 1420 kg and a velocity of 14.0 m/s?

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Q: The statement, "The total momentum P of an isolated system is a constant" is known as the law of the…

A: Given data: The total momentum of an isolated system is constant.

Q: A 8 cm-tall object is placed at 10.0 cm in front of a convex mirror with a focal length of 8.0 cm.…

A: Given data as per question u     =  -10cm f     =  8cm

Q: A 5.0-kg block moves in a straight line on a horizontal frictionless surface under the influence of…

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Q: A metal cylinder with rigid walls contains 2.00 mol of oxygen gas. The gas is cooled until the…

A: Since work done by a gas is given as  W  =   ∫PdV     (limits of the integral  being  v1 to v2.…

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Q: a pan of mass mp = 0.2 kg is susper mm = 2.2 kg is dropped onto the meat makes a totally inelastic…

A: Givenk=400 N/mmp=0.2 kgmm=2.2 kgh=0.4 m

Q: A 75 kg woman balances on the heel of one shoe, whose area is 0.00005 m2 (a very small number). How…

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Q: A voltage ΔV is applied across the ends of a Nichrome heater wire having a cross-sectional area A…

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Q: An RL circuit with L = 2.50 H and an RC circuit with C = 2.85 µF have the same time constant. (a) If…

A: Given  Inductance L=2.50H C=2.85μF

Q: Two light bulbs are 90 cm apart and emit yellow light wavelength λ = 600 nm. A telescope has a D = 3…

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Q: Q5- What is the magnification of two thin lenses having focal lengths of +15 cm and -15 cm are…

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Q: Which of the following is true about charging by induction? A) Charging by induction can happen even…

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Q: A water pipe having a 2.45 cm inside diameter carries water into the basement of a house at a speed…

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Q: You are traveling in a spaceship at a speed of 0.86c away from Earth. You send a laser beam toward…

A: Given Speed of person in spaceship with respect to earth = VPE = 0.86c (away from Earth) SSpeed of…

Q: A piece of stone thrown vertically upwards . It reaches the maximum height in 5 seconds. If the…

A: Given data:  Stone thrown vertically upward  Time taken to reach maximum height (t) = 5 s…

Q: A 24-V battery is connected in series with a resistor and an inductor, with R = 3.6 N and L = 4.6 H,…

A: Given data: Voltage V = 24 V Resistance R=3.6 Ω Inductance L = 4.6 H

Q: 29.) A household electric iron has a resistance of 50.0 2. If 7.56 A of current is flowing through…

A: Given data:  Resistance (R) = 50.0 Ω Current (I) = 7.56 A Required: Voltage (V)

Q: 30 W 60 W B AV

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Q: 6.1. A man has pulled a cart through 35 m applying a force of 300 N. Find the work done by the man.

A: Given : Force applied = 300 N Displacement, d = 35 m

Q: The mass of the parasitic wasp Caraphractus cintus can be as small as 3x10* kg. What is this mass in…

A: Given:- 1) The mass of the parasitic wasp Caraphrachuis cintus = 3 x 10-4 kg.  Find:- The mass in…

Q: Integrated Concepts An ultracentrifuge accelerates from rest to 101958 rpm in 2.5 min. a) What is…

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Q: 2) The rotation of the flywheel is governed by w = 2VE where w is in rad/s and t is in sec. e = when…

A: Givenw=2tθ=3 radt=1.5 s

Q: The image of a bird is formed by a concave spherical mirror on a screen away 100 cm if the bird is…

A: The mirror equation is given by, 1/u + 1/v = 2/R u is object distance from the mirror, and v is…

Q: Momentum of an object is defined as the object's mass times its energy. True O False

A: Momentum is a vector quantity because it has both magnitude and direction. S.I. unit of momentum is…

Q: A spherical glass bottle 20 cm in diameter with walls that are negligible thin is filled with water…

A: Given         ∆ = 20cm          n = 1.33 R1= -R2 = 10cm            1/f =…

Q: As shown in the figure below, a light ray is incident normal to one face of a 30°-60°-90° block of…

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Q: Oxygen (O2) has a molar mass of 32.0 g/mol . Part A What is the root-mean-square speed of an oxygen…

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Q: 18.) Determine the amount of energy, in joules, stored in a defibrillator's 17.0 – µF capacitor that…

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Q: Part A Calculate the volume of 1.10 mol of liquid water at a temperature of 20 °C (at which its…

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Q: 6. A shopping bag with mass 24.0 kg is placed on an incline (21.70 deg. from horizontal). What is…

A: Given : Mass = 24 kg and angle = 21.70° Hence, the correct answer is option (d) i.e. 3.62 m/s²

Q: 6. Complete the table using the given three resistors and a power supply below with their respective…

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Q: A large balloon has a volume of 3.6 m cubed. As it it rises in the Earth’s atmosphere, it’s volume…

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Q: Problem 3: A thin cylindrical ring starts from rest at a height h, = 82 m. The ring has a radius R =…

A: Given data: Height h1 = 82 m Height h2 = 41 m Radius R = 18 cm Mass M = 5 kg

Q: A particle of mass m and charge q is in an electric and magnetic field is given by E = 2î + 33, B=…

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Q: This morning at 8:17 PST, a Houston-based startup company named Axiom-1 Space launched an…

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Q: Early in the 20th century, a leading model of the structure of the atom was that of English…

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Q: A PHYS-91; Multiple Choice: A circuit has a resistance of 200 ohms. The resistance of the circuit…

A: Given data:  Resistance of circuit (R1) = 200 Ω New equivalent resistance (R) = 120 Ω Required: The…

Q: At the world athletic championships held in Tokyo, Japan in 1991, Mike Powell set the world record…

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Q: Find the momentum A car that has a mass of 1420 kg and a velocity of 14•0 m/s ?

A: Given data :   Car of  mass   =  m  A velocity   =  v        To find :       Momentum

Q: 36.) Calculate the magnetic flux through a loop with an area of 3,45 ×10“m² found perpendicular to a…

A: Given : Area (A) = 3.45 *10-4 m2 Magnetic field (B) = 1.1 T

Q: 5. A tiger jumps across a creek. The tiger's jump starts at an 40 angle above the horizontal with a…

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Q: 19.) Which of the following is true about a dielectric and its insulating ability? A.) The higher…

A: The higher the dielectric constant, the better a material functions as an insulator---for example,…

Q: Imagine that you have two identical perfect linear polarizers and a source of natural light. Place…

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Q: Directions: Draw a picture of a circuit. Label the light bulb, switch and battery. Use arrows to…

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Q: The image projected by an equiconvex lens (n=1.50) of a frog 5 cm tall, who is located 0.6 m from a…

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Q: (a) A spring of negligible mass and with spring constant k = 400 N/m is hung vertically; a pan of…

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Q: I Review I Constants A gas under a constant pressure of 1.50x105 Pa and with an initial volume of…

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Q: a. While ice is melting, it absorbs 334 kJ of heat per kilogram of ice. This takes place at a…

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Temperature Variance of Resistance

Electrical resistance or simply resistance is the property of a material that opposes the free flow of electrons through it. The total amount of resistance to the flow of charges (or current) is affected by many factors like the length of the conducting material, its cross-sectional area, resistivity, and temperature.