What is the resistance R of a 57.7-m-long aluminum wire that has a diameter of 7.85 mm? The resistivity of aluminum is 2.83 x 10-8 22.m. R = Ω

Q: A bat traveling at a speed of 18.1 m/s sends out sound at a frequency of 48.2 kHz, can 'see' objects…

A: Given Speed of the bat is vs=18.1 m/s Frequency of the sound emitted by the bat is f=48.2…

Q: Q1. A small block of mass 1 kg drops from rest at the top of a curved track at a height h = 10 m and…

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Q: The total momentum for any system of objects is constant so long as the following is true. (Select…

A: Momentum is conserved, when there no external force is actin on it  First option is correct

Q: (a) Young's double-slit experiment is performed with 550-nm light and a distance of 2.00 m between…

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Q: Problem 3:  Consider a parallel plate capacitor having plates of area 1.65 cm2 that are separated by…

A: Given:-  The area of the parallel plate capacitance is A = 1.65 cm2 The Separation distance is d =…

Q: Consider the circuit shown in the figure below, where R₁ = 9.00, R₂ = 5.00 , and € = 7.00 V. 10.0 Ω…

A: Given: R1=9 ΩR2=5 Ωε=7 V

Q: A wheel, initially rotating at 15.4 rad/s, undergoes an angular acceleration of 5.5 rad/s^2. What is…

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Q: 32. A body of weight P, placed close to the Earth's surface, is let fall from rest. Let g be the…

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Q: Cell membranes contain channels that allow ions to cross the phospholipid bilayer. Suppose that a…

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Q: A circuit consists of four resistors as shown in the figure. The current passing through resistor R₁…

A: In series current remains same. In parallel current doest remain same.

Q: Two balls A and B are pushed horizontally from a surface of height 11.27 meters. Ball A is pushed so…

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Q: Calculate the power delivered to each resistor in the circuit shown in the figure below. (Let R₁ =…

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Q: Q3. Point charge q₁ = 2.0 nC is located at (0, 0). a) What is the electric potential at point A (2.0…

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Q: An object attached to a horizontal spring is oscillating back and forth along a frictionless…

A: Given:maximum speed, vm=1.37 m/smaximum acceleration, am=7.34 m/s2To find:time between max. speed…

Q: You are a police officer examining the scene of a car crash that claimed the life of someone driving…

A: Solution: Given: m1 = mass of Tesla car = 2250 kg m2 = mass of truck = 2930 kg u1 = velocity of…

Q: Which of the aircuts below will give you Vab=7V? Select one: O V Ob. 3V OL 3V d. 3v 5V 1V БУ SV IV…

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Q: A wheel rotating at 17.55 rad/s undergoes an angular acceleration of 12.70 rad/s^2. Through what…

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Q: •• The 10-cm-wide, zero-resistance wire shown in Figure P27.56 is pushed toward the 2.0 № resistor…

A: (a) F = ILB = (BVL/R)LB = (B2L2V)/R F = (0.5020.120.50) / 2 F = 6.25 x 10-4 N

Q: Mike and Carl are fighting over a 1 kg stick.  Mike pulls to the right with a force of 30 N and Carl…

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Q: An object on a rope is lowered at a steadily decreasing speed?  Which is true? a) The rope tension…

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Q: A container encloses 2 mol of an ideal gas that has molar mass M₁ and 0.5 mol of a second ideal gas…

A: The pressure P1 due to the first gas is P1 =n1*RT/V and the pressure P2 due to the second gas is P2…

Q: 4. (I) If the solenoid in Fig. 21-59 is being pulled away from the loop shown, in what direction is…

A: Explanation: The current will be in such a way that it will try to pull solenoid inside, so the…

Q: b. A photocopy machine works by arranging positive charges (in the pattern to be copied) on the…

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Q: A deli owner creates a lunch special display board by taking a uniform board which has a weight of…

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Q: The drawing shows an equilateral triangle, each side of which has a length of 2.81 cm. Point charges…

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Q: To condition the air in an office building in the winter, 1000 cubic meter of moist air per hour at…

A: It is given that, at inlet: v˙1=1000 m3/hP1=101KPaTdb1=22°CTdp1=11°C Using the steam table:…

Q: In a wire with a 2.63 mm² cross-sectional area, 5.51 × 1020 electrons flow past any point during…

A: Given data:  Cross sectional area (A) = 2.63 mm2 = 2.63×10-6 m2 Number of electrons (n) = 5.51×1020…

Q: (II) A hair dryer draws 7.5 A when plugged into a 120-V line. (a) What is its resistance? (b) How…

A: Given dataThe current is I=7.5AVoltage is V=120v

Q: (a) Young's double-slit experiment is performed with 550-nm light and a distance of 2.00 m between…

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Q: A uniform rod is attached to a wall by a hinge at its base. The rod has a mass of 8.0 kg, a length…

A: Refer the free body diagrams given below.

Q: A stone is dropped verticall down a well at 20 m/s and the sound is heard in 4 sec. speed sound =…

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Q: The potential energy, in Joules, of a 0.20 kg particle moving along the x axis is given by U(x) =…

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Q: SA R₁ 20 R₂30 E₁8 V b Ry ww ΤΩ E₂6V

A: First we convert the given current source to its equivalent voltage source. Then we we use loop…

Q: Q6. In the circuit presented in Figure 2: (a) Calculate the Thevenin equivalent resistance between…

A: Thevenin's theorem is very useful when we want to know the amount of power, voltage-current or…

Q: What is the minimum work needed to push a 980-kg car 350 m up along a 8.0° incline? Ignore friction.…

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Q: A kid on a bike coasts (No Pedaling) from the bottom to the top of a 25 m hill. What is the energy…

A: Given: The kid goes from bottom to top. The height of the hill is 25 m.

Q: A horizontal force of 10.1 N is applied at an angle of 34.9 degrees to the knob of a 71.1 cm wide…

A: If the line of axis of a force passing through the axis of the door or parallel to the axis of the…

Q: An amusement park owner creates a new strength-testing machine.  The owner decides to use the…

A: The magnetic field of the Earth is B=10-4 T Assume the acceleration due to gravity of Earth as…

Q: The space station, with a mass of about 854,000 kg, has lost its geostationary orbit (an altitude of…

A: Given:- m= mass of the space station= 854000 kg = 8.54×105 Kg Ro= Radius of Geostationary Orbit=…

Q: 9. (I) A step-up transformer increases 25 V to 120 V. What is the current in the secondary coil as…

A: primary voltage, Vp = 25 V  secondary voltage, Vs = 120 V

Q: 15. An object is thrown vertically upward from the ground with initial velocity of 1960 cm/sec.…

A: We have an object that is thrown upwards with an initial velocity u=1960 cm/s=19.6 m/s and it…

Q: A vertical stick is dipped up and down in water at P. In two seconds, three wave crests are produced…

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Q: The left end of a long glass rod 6.00 cm in diameter has a convex hemispherical surface 3.00 cm in…

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Q: A positive charge of q₁ is located 5.54 m to the left of a negative charge q2. The charges have…

A: Given data- A positive charge of q1 is located 5.54 m to the left of a negative charge q2. Net…

Q: Problem 6: In the Figure above on the right there are three masses m₁ = 1 kg, m₂ = 2 kg, m3 = 3 kg.…

A: Required  asystem T1 T2

Q: In a darkened room, a burning candle is placed 1.50 m from a white wall. A lens is placed between…

A: The light deviates from its path when travelling from one medium to another. The phenomenon is well…

Q: What is the sound level intensity heard a distance of 4.50E2 m away from a 3.00 W sound source?

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Q: Q1 A 68 resistor is connected across the terminals of a 3 V battery. The power dissipation of the…

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Q: Problem 2: In the Figure, three connected blocks are pulled to the right on a horizontal…

A: Required  asystem T1 T2

Q: 5. Apply the work equation to determine the amount of work done, in N-m, by an upward force applied…

A: The mass of the object is M=58 kg The height of lifting of the object is D=9.9 m Assume the…

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.