A copper rod is 20 cm longer than an aluminum rod, how long should the copper rod be if the difference in their lengths is to be independent of temperature? Linear expansion of copper and aluminum are 1.70x10^-5 /C and 2.2x10^-5/C respectively.

Q: What is the magnitude of the electric field at the point (2.60 i -6.20j+ 2.20 k) m if the electric…

A: Position given = 2.6i^  - 6.2j^ +2.2k^ V (Potential) = 1.5xyz2 E = -(gradient of V)

Q: A projectile is thrown from the top of a cliff with an initial speed of 25m/s at an angle of 60° up…

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Q: Is incorrect, is there another way to do it?

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Q: Three positive point charges are arranged in a triangular pattern in a plane, as shown. 3 nC (+)

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Q: Physics 211 - Module 1 Hands On Activities Packet 2 Activity 1.10- Introduction to Vectors Part 1 1.…

A: “Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

Q: Assume the average value of the vertical component of Earth's magnetic field is 48 µT (downward) in…

A: Given, magnetic field B = 48 μT = 48 × 10-6 T area A = 3.10 × 105 km2 = 3.10 × 105 × (103 m)2…

Q: A 2.8 µF capacitor and a 5.8 µF capacitor are connected in parallel across a 430 V potential…

A: C1=2.8uf C2=5.8uf Voltage applied (V)= 430 v

Q: incorrect. ahhhh

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Q: A parallel-plate capacitor has a capacitance of 660 pF, a plate area of 180 cm2, and a mica…

A: The movement of charge causes the current to flow in the conductor. Each charge has an electric…

Q: 4. Find the node voltages in the circuit below. 12 4 2 8. D2 3

A: Given that : R1 = 22 ohm R2 = 12 ohm R3 = 2 ohm R4 = 2 ohm R5 = 5 ohm R6 = 4 ohm  R7 = 7 ohm I = 8…

Q: the answer its wrong can someone else help

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Q: Determine the magnitude of the resultant (F, + F₂) force in N when F₁ = { 10 i+20 j} N and F₂ = { 20…

A: Given data:  Two forces F1 = (10i + 20j) N F2 = (20i + 20j) N Required: The magnitude of the…

Q: A projectile is fired at a velocity of 100 m s-¹ at an angle of 36° to the horizontal as shown…

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Q: Light of wavelength 618 nm is incident normally on a diffraction grating. Two adjacent maxima occur…

A: the wavelength of light=618nm Two adjacent maxima occur at sinθ=0.24 & sinθ=0.35

Q: A plastic disk of radius R = 46.3 cm is charged on one side with a uniform surface charge density…

A: This question is based on Electrostatic potential topic. The formula for Electrostatic potential due…

Q: A coaxial cable used in a transmission line has an inner radius of 0.14 mm and an outer radius of…

A: Solution

Q: 3. A bullet with a mass of 3.6 grams is moving horizontally with a velocity v and strikes a 5-kg…

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Q: artici form a square of edge length a = 5.10 cm and have charges q1= 8.01 nC, q2 = -18.9 nC, 93 =…

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Q: A piston cylinder device like the one shown in the figure initially has 0.4 kg of air at 250 kPa…

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Q: A 50 N box has an applied force on it of 40 N that makes an angle of 30 with the horizontal. The box…

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Q: 2. A square coil of wire changes its side from 4 cm to 1 cm in 2 ms It is placed with the normal of…

A: We will use the induced emf formula in this problem,

Q: e) What is the magnetic torque on the current loop? [0.0187 ) What is the direction of the torque on…

A: Given Data: Current in square loop: Iloop = 8 A Square plane of current loop makes an angle θ = 320…

Q: A ball is kicked with an initial velocity of 19(m)/(s) in the horizontal direction and 13(m)/(s) in…

A: This is a question based on projectile motion.

Q: 14. Andrea, of mass 54.5kg, thinks she's sitting at rest in the middle of her 4.81m long dorm room…

A: mass = 54.5 kg length of dorm room = 4.81 m