A cylindrical conductor has resistance of R0 = 120 Ω. It has length L, radius of the cross section r, and resistivity ρ.    Part (a)  Express the resistance in terms of L, r, ρ.  R0 =   P L/π r2  This equation is incorrect      Part (b)  If the resistivity increases by a factor of 3, what would the value of the new resistance be, in ohms?  Rρ =360   Part (c)  If the resistivity was restored to its original value and instead the length of the conductor decreased by a factor of 3, what would the value of the new resistance be, in ohms?  Rl =    Part (d)  If the resistivity and length of the conductor were at their original values and the radius of the conductor increased by a factor of 6, what would be the value of the new resistance, in ohms?  Rr =

Q: Two dogs pull on a 0.15 kg chew toy from opposing directions. One dog pulls with a force of 3.0 N to...

A: Given data:  Mass (m) = 0.15 kg Force (F1) = 3.0 N, towards left Force (F2) = 1.0 N, towards right R...

Q: If the power rating of a computer is 600W and the computer is plugged into a mains supply (230V), ca...

A: Given that:- Power rating of computer=600W Voltage supply=V=230Volt

Q: 2. A car enters a 350 m radius curve at a speed of 50 kph. If it accelerates at 2m/s^2 find its tota...

A:

Q: Two point charges Q, = +4.80 nC and Q, = -2.40 nC are separated by 25.0 cm. (a) What is the electric...

A:

Q: Let 0 be the angle that a vector to make with the x - axis and measured counter clockwise from that ...

A:

Q: 22. Referring from the Which best illustrates the wavelength of a AA transverse wave? А. А В. В С. С...

A: Here the given graph is of sinusoidal form (Sin(x) type) and We know that the wavelength of a wave i...

Q: A student is listening to a band play a song. The student is sitting 25 m away from the band. They h...

A:

Q: An airplane flies with a velocity of 55.0 m/s [ 35o N of W] with respect to the air (this is known a...

A:

Q: Learning Goal: To understand the meaning and the basic applications of Newton's 1st and 2nd laws. ...

A: Newton's First Law. Law of inertia A body will always try to maintain its state of mechanical moveme...

Q: tatics Of Rigid Bodies Topic: Friction The block in the figure below weighs 500 lb and the coeffic...

A: Given: The weight of the object is 500 lb. The applied force on the object is P = 400 lb. The coeffi...

Q: A plane flew 600 kilometers along a line 350 east of south. How far east of its starting point is it...

A:

Q: rock is dropped from a 100 m high tower then after 3 seconds another stone was thrown from the botto...

A:

Q: Two ropes apply a force to a boat. The first is 100 N in the positive x direction and 100 N in the p...

A:

Q: The figure below shows two tiny charged spheres q1 = +5 µC and q2 = −7.5 µC separated by 8.0 cm. a) ...

A: (a)The electric field at point a and determine the magnitude and direction of the electric field at ...

Q: A conducting wire formed in the shape of a right triangle with base b = 29 cm and height h = 51 cm a...

A:

Q: Still think that unit conversion isn't important? Here is a widely publicized, true story about how ...

A:

Q: You are sitting on the edge of a dock watching waves go by. Two crests of a wave pass by you each se...

A: Given data:  Number of oscillations = 2 Time (t) = 1 s Wavelength (λ) = 1.5 m Required: Velocity of ...

Q: A ferryboat is traveling in a direction 42.0 ° north of east with a speed of 6.20 m/s relative to th...

A:

Q: A 1120 kg car with no air bag collides with a railing traveling 21.9 m/s. The 62.5 kg driver, who is...

A: F= (mv-mu)/t  m= 62.5kg  t = 0.05sec  v= 0m/s  u= 21.9m/s 

Q: A 5 kg cart is moving at 1.5 m/s to the right and hits a stationary 5 kg cart. The two carts stick t...

A: Given data:  Mass of first cart (m1) = 5 kg Initial velocity of first cart (V1) = 1.5 m/s Mass of se...

Q: 2. Discuss the significance of the Earth's magnetic field in space weathering

A: The earth has a magnetic field that covers it. They deflect the harmful solar winds and cosmic rays ...

Q: A resistor of 400 ohms and an uncharged 4 x 10-6 farad capacitor are connected to a 80-volt battery....

A:

Q: A 0.020-kg bullet traveling at a speed of 300 m/s embeds in a 1.0-kg wooden block resting on a horiz...

A:

Q: If 48 eV of energy is required to move a charge through a potential difference of 3.2 V, deter-mine ...

A: The required energy to move charge q from a potential a to b is given by  W = q (Vb-Va) Given  (Vb-V...

Q: 1/1 m2 The figure shows two blocks of masses m1 (4.0 kg) and m2 (12.0 kg). The horizontal surface al...

A: We can solve this problem by balancing forces on masses m1 and m2 .  

Q: A major-league pitcher can throw a ball in excess of 43.5 m/s. If a ball is thrown horizontally at t...

A: Speed is the distance traveled per unit of time. Here, we calculate  the given  as follow;

Q: With the given three vector A, B, C. Determine the negative vector B. A= 2i - 3j + 4k B= -3i - 6j + ...

A: Given data:  A= 2i - 3j + 4k B= -3i - 6j + 5k C= 4i + 2j Required: The negative vector B 

Q: Problem 19: A particle moves in a straight line with a constant acceleration of 5.87 m/s² in the pos...

A: Given: The acceleration of the object is 5.87 m/s2. The initial velocity of the object is 2.23 m/s. ...

Q: technology

A:

Q: A 2 Mg block is pulled upward parallel to the inclined plane at an angle of 36 degrees. Coefficient ...

A:

Q: What is the focal length of the lens in the system below? An actual situation Screen Light source (o...

A:

Q: A man walks at 4 ft/s on the roof of a train that is traveling at 40 ft/s. The train is reducing its...

A: As given, Velocity of men with respect to train, v→MT=4 i^ fts Velocity of train, v→T=-40 i^ fts Acc...

Q: At highway speeds, an automobile is capable of an acceleration at about 1.6 m/s?. For how long was i...

A:

Q: A 7.0 kg box is at rest on a table. The static friction coefficient, between the box and table is 0....

A:

Q: what is quantum bonds states experiment and whose started this experiment?

A: 1. A 2013 experiment superposed molecules containing 15,000 each of protons, neutrons and electrons....

Q: 48. A copper bar is 80 cm long at 15 °C. What is the increase in length when it is heated to 35 °C? ...

A: Answer Given  L0 is the initial length of the copper bar at 15℃  α is the linear expansion coefficie...

Q: You kick a ball with an intial velocity whose magnitude is 38.9 m/s and whose direction is 8°. How ...

A: Given data:  Initial velocity (v0) = 38.9 m/s Angle (θ) = 8° Required: Horizontal Range (R) 

Q: A proton moves at 4.5 e5 m/s in the horizontal direction. It enters a uniform electruc field with ma...

A:

Q: . What is the value of p -What is the value of e What is the formula o

A:

Q: Parallel and Series Combination 200 µF C3 C1 H 300 µF 96 V C2 70 µF |C2 ' 60 μF C4 100 µF C1 400 V C...

A:

Q: Problem 18: A ball is thrown upward from the ground with an initial speed of v; = 6 m/s. Neglect air...

A:

Q: Part A A proton is at the origin and an electron is at the point x = 0.36 nm, y = 0.31 nm. Find the ...

A:

Q: 2. A charge q = 4.0 x 10-C in a uniform electric field E = 8.0 x 102N/C is moved from initial distan...

A:

Q: A telephone cable is clamped at A to the pole AB. Knowing that the tension in the left-hand portion ...

A:

Q: Two vectors, r and s, lie in the x-y plane. Their magnitudes are 23.2 and 39.8 units, respectively, ...

A:

Q: Question 1 Why do moving objects eventually come to a stop? 2. What is meant by net external force? ...

A:

Q: 4. What is the rate of heat transfer by radiation, with an unclothed person standing in a dark room ...

A: Given, Ambient Temperature =24°C Skin temperature =32°C Surface Area =1.6 m2. Emissivity of skin =0....

Q: The internal energy of a system is proportional to. . .  (Choose as many as apply) Group of answer...

A: Internal energy is dU = Cv dT Cv is the spacific heat at constant volume. dT is change of temperatur...

Q: In uniform circular motion, the net force is perpendicular to the velocity and changes the direction...

A:

Q: 33. Two wave pulses, as shown in the image on the right, with equal positive amplitudes travel on a ...

A: the amplitudes of waves add up vectorially

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.