what happens to the current passing through an ohmic material if its temperature is increased?

Q: Draw the diagram of each type of dipole. 1. Electric dipole 2. Molecular Dipole 3. Instantaneous ...

A: 1. Electric dipole:  two charges on equal magnitude and opposite charge separated by small distance

Q: 3. An object with 0.5 gr/cm3 is floating in a fluid with density of 1.5 gr/cm. If 20 cm of the objec...

A: The density of the object is ρobject=0.5gr/cm3 The density of the fluid is ρfluid=1.5gr/cm3 Assume 2...

Q: The elastic limit of brass is 379 MPa. What should be the minimum diameter of a brass rod if it is t...

A:

Q: 5.A child throws a ball straight down off the balcony of an apartment building ata speed of 7.7 m/se...

A:

Q: A child attaches a rubber ball to a a A child attaches a rubber ball to a string and whirls it aroun...

A:

Q: In the figure here, a small block is sent through point A with a speed of 6.9 m/s. Its path is witho...

A:

Q: a. Determine the acceleration of the two bodies. b. Determine the tension in each cord. c. If the sy...

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and s...

Q: How fast can you set the Earth moving? In particular, when you jump straight up as high as you can, ...

A:

Q: A fish is in a spherical bowl of water with refractive index 1.33. The radius of the bowl is 12 cm. ...

A: Refractive index=1.33 Object distance=12cm Radius=12cm

Q: In soccer, sometimes a goalkeeper cannot catch the ball so she simply knocks it away with her hand. ...

A:

Q: 1. Aquantity of N molecules of an ideal gas occupying a volume V expands to volume 2V. Which of the ...

A: A quantity of N molecules of ab ideal gas occupying a volume V expands to volume 2V.

Q: In the figure, a frictionless roller coaster car of mass m = 820 kg tops the first hill with speed v...

A: According to conservation of energy Total energy of isolated system remains constant. Initial KE + i...

Q: If the brakes on a car give the car a constant negative acceleration of 2k m/s2, where k is a positi...

A:

Q: Electromagnetic waves 1) Ex=0 Ey=0 Ez =5000 sin (kx - 1000t) Use the relationship between k,w and c ...

A:

Q: 37. Rory MclIRoy strikes a golf ball on level ground. The ball leaves the ground with an initial vel...

A: The above question is based on the concepts of projectile motion.

Q: What is the strength of the electric field between two large parallel conducting plates separated by...

A:

Q: 1) A thin film of water (n 1.33)floats on the surface of an oil with refractive index 1.65. White li...

A: Givenn=1.33n'=1.65Angle of reflection,θ=48°λ=610 nm=610×10-9 m

Q: You went on a drive late at night after having a fun party with the member of your company when you ...

A:

Q: The Kingda Ka roller coaster in New Jersey is the world's tallest ride of its kind. As the passenger...

A: Given : Initial speed =0 m/s Final speed = 57 m/s Time taken to attain final speed = 3.5 s mass of a...

Q: 2. The graph below shows the change of position of a cart through a 15 second interval. What was the...

A: Given,

Q: What charge is stored in a 280-pF capaci

A:

Q: A circuit has a 62.1Ω resistor, a 71 and a 47.2 resistor all connected in parallel with each other. ...

A: R1 = 62.1 Ω R2 = 71  Ω R3 = 47.2 Ω

Q: In a murder investigation, the temperature of the corpse was 33°C at 1:30pm and 16°C 5 hours later. ...

A: Rate of change of temperature remains constant  (T2 - T1 )/t1 = T4 - T3 /t

Q: Nishi is driving his 2000kg car at 50 m/h. He diverts his attention from the road to message a frien...

A:

Q: If the brakes on a car give the car a constant negative acceleration of 2k m/s2 , where k is a posit...

A: Given: The acceleration of the car is -2k m/s2. The stopping distance is 25 m.

Q: How far does a car going 24 m/s travel in 8 s? How far would a jet going 170 m/s travel in 8 s? car'...

A: 1) for car, d = v×t = 21×8 = 168m

Q: The figure above is taken from one of the Webassign HW problems which shows a person held up against...

A:

Q: 40. What is the change in gravitational potential energy of a 65.5 kg astronaut lifted from Earth's ...

A:

Q: Two blocks are positioned on surfaces, each inclined at the same angle of 49.2 degrees with respect ...

A:

Q: M radio station KRTH in Los Angeles broadcasts on an assigned frequency of 101 MHz with a power of 5...

A: GivenFrequency ,f=101 MHz=101×106  HzPower,P=50000 W

Q: Part A Mary and Sally are in a foot race (see the figure). When Mary is 22 m from the finish line, s...

A:

Q: Part A You place a 30-cm focal length convex lens at a distance of 50 cm in front of a concave lens ...

A:

Q: If the brakes on a car give the car a constant negative acceleration of 2k m/s2, wherek is a positiv...

A:

Q: Give the importance of each type of dipole 1. Electric dipole 2. Molecular Dipole 3. Instantaneou...

A:

Q: solve this non-homogenous differential equation- y" + 2y' + y = x sinx e^x hint: y=e^mx be the trial...

A: We have a non-homogeneous differential equation of second order which is given by,  y''+2y'+y=xexsin...

Q: A coil of wire containing four circular loops with radius 0.4 m lies in the plane of the page. A uni...

A:

Q: How much force acts on a tossed coin when it is halfway to its maximum height? How much force acts o...

A: In this question 3 it is asked that How much force acts on a tossed coin when it is halfway to its m...

Q: What is the net electric force on q1 due to q2 and q3? A. 1.4 x 10 -3 N                     C. 1.4 x...

A:

Q: You have learned concept of Electric Potential energy, electric potential and capacitor.  Pick any ...

A:

Q: The electric flux through a square-shaped area of side 0.5 cm near a large charged sheet is found to...

A: Electric flux φ = E̅•A̅     = EA Cosθ 

Q: Part A A sports car moving at constant velocity travels 120 m in 4.8 s If it then brakes and comes t...

A:

Q: 2. John pulls a 60 pound box along a level surface from left to right by attaching a piece of rope t...

A:

Q: A charge is moving perpendicular to a magnetic field and experiences a force whose magnitude is 1.33...

A: Given: q1=q2 v1 and B1 are perpandicularF1=1.33*10-3 N now, v2(=v1) and B2(=B1) making angle 26.9°we...

Q: Sound waves of 675 ?? travel at a speed of 345 ?/? through a doorway in a soundproof wall. If the do...

A:

Q: A worker pushed a 22.0 kg block 12.0 m along a level floor at constant speed with a force directed 2...

A: Given value --- mass = 22 kg. distance s = 12 m. angle = 22 degree.  We have to find --- work don...

Q: A 2 mW laser operates at a wavelength of 500 nm. The number of photons that will be emitted per seco...

A:

Q: 3. A race car's velocity increases from 4m/s to 36 m/s over a 4.0 s interval. (a) What is its accele...

A: Given: The intial velocity of the car is 4 m/s. The final velocity of the car is 36 m/s. The time in...

Q: The circuit below consists of a battery and a tungsten wire. As shown in the figure, the tungsten wi...

A: drift velocity is independent of area. So when the charge moves from a region of higher area(thicker...

Q: A box with mass 1.78 kg is being pulled across a rough surface with a coefficient of kinetic frictio...

A:

Q: A string 0.6m long is used to whirl a 1.5-kg yoyo in a vertical circle at a uniform velocity of 6m/s...

A: