A copper wire 660 ft long has a resistance of 1.046 Ω. How long is a copper wire of the same size (in ft) whose resistance is 2.615 Ω? (The resistance of these wires is proportional to their length.)

Q: What condition must exist so that no phase change occurs at either boundary in a thin film interfere...

A: Option (D) is the right answer 

Q: In a system similar to that shown in Active Figure 12.1, the gas in the cylinder is at a pressure eq...

A:

Q: A mercury barometer at the base of the mountain reads 756 mm. At the same time, another barometer at...

A:

Q: A hole of area 1 mm opens near the bottom of a large-water storage tank, and a stream of water shoot...

A: Given data- Area of hole A=1 mm2=1×10-6 m2 Top of water in the tank is to be kept above the point of...

Q: A yoyo is spined in a horizontal circle 1.5m in radius at a rate of 1 revolution every 2 seconds. Fi...

A: From the given pieces of information, we will find out the angular speed and then centripetal accele...

Q: With 21 V applied, if R1 = 5 ohms, R2 = 35 ohms, and R3 = 14 ohms, what is the current in R2 if R1 ...

A: Q 1) The resistance R2 and R3 are in parallel connection. The net resistance is 1Rnet = 1R2+1R3 = 13...

Q: Current Attempt in Progress The figure shows a lower leg being exercised. It has a 49-N weight attac...

A:

Q: A freight company uses a compressed spring to shoot 1.80 kg packages up a 1.00-m -high frictionless ...

A:

Q: A heat conducting rod, 0.90 m long, is made of an aluminum section that is 0.10 m long, and an unkno...

A:

Q: A playground carousel is rotating counterclockwise about its center on frictionless bearings. A pers...

A:

Q: Anti-reflective coatings on camera lenses and glasses work by utilizing thin-film interference to gr...

A:

Q: Consider two identical charges, of charge 3.65 mC, moving at the same speed of v = 34 × 105 m/s. The...

A:

Q: White light hits a diffraction grating with lines that are spaced d = 1729 nm apart. What wavelength...

A:

Q: A block of mass 0.5 kg is initially resting against the spring, compressing the spring at a distance...

A: mass of block (m) = 0.5 kg spring constant (k) = 400 Nmcompression in the spring (∆x) = 15 cm = 0.15...

Q: Find the repulsive exponent n.  Given: nearest neighbour equilibrium distance, R0 = 3.14 Å, compress...

A:

Q: A slit of width 1.55 x 10-6 m is illuminated by a monochromatic light of wavelength 550 nm. What is ...

A: Given, Slit width(d) = 1.55×10-6m Wavelength of light (λ) = 550nm Distance between slit and screen(D...

Q: Current Attempt in Progress A solid disk rotates in the horizontal plane at an angular velocity of 0...

A:

Q: em no 13. A 0.5-kg ladybug flying at 7m/s collides with a bird 2kg bird flying in the opposite dire...

A: Given: The mass of the bird is 0.5 kg. The mass of the ladybug is 2 kg. The initial velocity of the ...

Q: A 0.500 kg hammer is moving horizontally at 6.50 m/s when it strikes a nail and comes to rest after ...

A: Given: The mass of the hemmer is 0.5 kg. The initial speed of the hammer is 6.5 m/s. The final speed...

Q: (9) A pure torque varying from 5 in-kips to 15 in-kips is applied at section C (F = 0) of the machin...

A: According to our Guideline we are allowed to solve one question at a time  , Since you have asked mu...

Q: A heavy weight is supported by two cables that exert tensions of magnitude T, and T;2. Which stateme...

A:

Q: An atom of 239Pu decays into 235U and an alpha particle. How much energy (in MeV) is released due to...

A:

Q: A star with spectral type A0 has a surface temperature of 9600 K and a radius of 2.2 RSun. How many ...

A: Given: Tstar = 9600 KRstar =2.2 RsunTsun=5778 KMstar = 3.3 Msun 

Q: Which condition is NOT required for the single-slit diffraction experimental set-up? O a. The size o...

A: In single slit diffraction,  Size of slit is similar to wavelength, so that the light is behaved lik...

Q: Problem 8: Penny is adjusting the position of a stand up piano of mass m, = 195 kg in her living roo...

A: Given data: The mass of the piano is mp=195 kg. The length of piano is lp=1.3 m. The angle with the...

Q: A sound source emits 20.0 W of acoustical power spread equally in all directions. The threshold of h...

A:

Q: Part À An electron in a cathode-ray tube is accelerated through a potential difference of 10 kV, the...

A: GivenPotential difference, ∆V=10 kV=10×103 Vd=2.4 cm=0.024 m

Q: O Consider rotating the coil about the vertical diameter by pulling the left side toward the reader ...

A: 1)if we pull the coil simultenausely then there is current in the left side a and when itis pull rig...

Q: Determine the maximum constant speed a race car can have if the acceleration of the car cannot excee...

A: Given data:  Centripetal acceleration (ac) = 7.5 m/s2 Radius (r) = 200 m Required: Maximum constant ...

Q: 2. You need to lift a person with a mass of Z kilograms who is laying in bed into a wheelchair next ...

A:

Q: Q. 30: A hollow spherical conductor of radius R has a harge Q on it. A small dent on the surface dec...

A:

Q: The density of aluminum is 2700 kg/m3. If transverse waves propagate at 34 in a 4 mm diameter  alumi...

A:

Q: Two microwave frequencies are authorized for use in microwave ovens: 925 and 2510 MHz. Calculate the...

A:

Q: A force of 150 N is applied to an object area 8 m2 . Calculate the pressure ?

A: Given data :            Area  =  A          Force  =  F      To find :          Pressure 

Q: An uncharged capacitor is connected to the terminals of a 4.0 V battery, and 12 μC flows to the posi...

A:

Q: 4.63 A Pitot-static tube is mounted on an airplane to measure airspeed. At an altitude of 10,000 ft,...

A:

Q: Calculate the limit of resolution of a telescope objective having a diameter of 200 cm, if it has to...

A:

Q: A object is 12 cm in front of a concave mirror, and the image is 3.0 cm in front of the mirror. W is...

A:

Q: A car is moving on a straight road 14 m/s. It is acceleration at 12 m/s?. What will be it's velocity...

A: Given data :            Initial velocity  =  u                 Time  =  t            Acceleration = ...

Q: Determine the currents through each resistor (I1, I2, and I3). JUNCTION R;= 10A R2=51 I2 I. V = 9 V ...

A:

Q: A wheel of radius 0.4 m consists of a ring of mass 1.2 kg and two rods of length 0.8m and mass 0.4 k...

A:

Q: For the microscale motion, is negligible. O A. pressure gradient force O B. centrifugal force O C. f...

A: For the microscale motion, Coriolis force is negligible   Solution: The typical horizontal dimensio...

Q: A Na+ ion moves from inside a cell, where the electric potential is -70  mV , to outside the cell, w...

A: Answer:-  Given  Initial Voltage (Vi) = - 70 mV = - 0.070 V  Final voltage (Vf) = 0 V  Charge of Na+...

Q: You are playing toy gun with your little sister when you shot the bullet 3m/s up into the air. How h...

A: Given value--- initial speed = 3 m/s. final speed = 0 m/s ( at maximum height ) We have to find---...

Q: A 0.160-kg hockey puck is moving on an icy frictionless, horizontal  surface. At t=0, the puck is mo...

A: mass of puck , m =0.160 kg at t=0, or initial velocity of puck ,u = 3 m/s towards right a) external ...

Q: Water flowing through a garden hose of diameter 2.78 cm fills a 21.0 L bucket in 1.60 min. (a) What ...

A: Use the concepts of water flow through a hose pipe.

Q: What is the characteristic of the vibrations of polarized beams of transverse waves They... O a. hav...

A: Ques:

Q: The figure shows a person whose weight is W= 732 N doing push-ups. Find the normal force exerted by ...

A:

Q: A cart is run along a track to study motion with constant acceleration. In one run, the position-tim...

A: The graph of the x-t curve is a parabola. We first find the equation of the parabolic equation of it...

Q: A transverse wave with a frequency of 827 Hz ,6.00 m wavelength, and 6.00 mm amplitude is propaga...

A:

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.