1. A 3.0 length of copper wire (p = 1.78 x 10-80m) at 20°C has a cross section area of 4mm2. What is the electric resistance of this wire?

Q: In the figure below, the switches S, and S, are closed simultaneously at t = 0 and a current starts…

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Q: 1.4. The resistance of a doped germanium crystal obeys the equation log R' = 4.697 – 3.917 log T.…

A: Given: The resistance of a doped germanium crystal obeys the equation logR'=4.697-3.917 logT…

Q: Use the data of this table to find the point between Neptune and the Sun at which an object can be…

A: We have mass Sun M1=1.991*1030kg, mass of Neptune M2=1.03*1026kg and distance between the Sun and…

Q: A string on the violin has a length of 19.80 cm and a mass of 0.0752 g. The fundamental frequency of…

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Q: 13. A very big truck collides with a small sports car. which experiences the greater acceleration?…

A: given:- a very big truck collides with a small sports car .

Q: In the figure, two 6.40 kg blocks are connected by a massless string over a pulley of radius 1.50 cm…

A: We are authorized to answer one Question at a time, since you have not mentioned which question you…

Q: 1. A spring mass system is placed on smooth horizontal table. From equilibrium position the mass is…

A: Given tAB=2secM=200g=0.2 KgU=total energy=0.9 J

Q: A 9.00 pF capacitor is connected in series with a 6.00 pF capacitor and a 850 V potential difference…

A: Given:-  The two capacitance are as  C1= 9 pF C2= 6 pF   The capacitance is in the series and the…

Q: 18. The necessary conditions for the equilibrium of an object is a) ΣF=0 and Στ0 b) ΣΤ= 0 and Σ Ιω-0…

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Q: What is the focal length (in cm) of a magnifying glass that produces a magnification of 3.85 when…

A: Given: Magnification, m = 3.85Object distance, u = 4.75 cm Need to find focal length, f

Q: Two large rectangular aluminum plates of area 140 cm² face each other with a separation of 3 mm…

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Q: As 3 4 2.

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Q: Find the total capacitance (in µF) of this combination of series and parallel capacitors shown…

A: Given Here capacitance of the three capacitors are given as C1=15 μF, C2=8.5 μF and C3=0.80 μF   We…

Q: Consider a sound wave moving through the air modeled with the equation s(x, t) = 3.00 nm cos(55.00…

A: Given:      Sx,t=3nmcos55m-1x-14×103s-1tHere wave number k=55 m-1       And…

Q: Each sketch below shows three objects with an electric charge. In each case, decide whether there is…

A: Given: Three objects charged as shown. To find net force on the he green outlined body

Q: A centrifuge rotates with a frequency of 2000 Hz with sample sitting at 6.0 cm from the rotation…

A: f1 = 2000 Hz , W1 =   2πf = 4000π rad/s  r1= 6cm  t = 100 min  f2= 4000 Hz , W2= 2π(4000) = 8000π…

Q: find the inertia tensor about the origin, and find the principal moments of inertia and the…

A: The tetrahedron bounded by x + y + z = 1 and the coordinate ­planes. To compute the moment of…

Q: The magnitude of the magnetic field 47 cm from a long, thin, straight wire is 6.8 µT. What is the…

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