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Question; A material is formed into a long rod with a square cross-section 0.50 cm on each side. When a 32V voltage is applied across a 20-m length of the rod, a 4.0A current is carried.
Question 1: What is the resistivity of the material?
I need help to determine the resistivity of the material.
Compute the quantum length (thermal de Broglie wavelength) in nanome-ters and the chemical potential in electron volts of 4He gas at room temperature and pressure
The earliest capacitors, called "Leyden jars" were made by wrapping conducting metal foil inside and outside glass jars. how tall would the jar have to be to reach a capacitance of 21.0 nF
If a measurement of an electron's energy takes 9.6 ns (9.6 × 10?9 s), what is the minimum possible uncertainty in the energy
A simple harmonic oscillator consists of the block of mass 1.90 kg attached to a spring of spring constant 196 N/m. while t = 3.00 s, position and velocity of the block are x = +0.129 m and v = +3.415 m/s.
Suppose the coefficient of static friction between the road and the tiers on a car is 0.60 and the car has no negative lift. What speedwill put the car on the verge of sliding as it round a level curveof 30.5 m radius?
A charge +Q0 is distributed uniformly througout a non- conductiong sphere of radius R0 the sphere also has a point charge -q0 at its center. a) what is the electric field outside of the sphere at a distance r from the sphere center? b) what is the el..
A block with mass = 5.00 slides down a surface inclined 36.9 to the horizontal (the figure (Figure 1) ). The coefficient of kinetic friction is 0.26. A string attached to the block is wrapped around a flywheel on a fixed axis at . The flywheel has..
An astronaut returning to Earth after a long trip is cruising earthward at 7.12×107m/s. At what speed does the package reach Earth
three point charges have equal magnitudes two being positive and one negative. these charges are fixed to the corners
A satellite has a mass of 105 kg and is located at 2.0*106 m above the surface of Earth. What is the potential energy associated by the satellite at this location? What is the magnitude of the gravitational force on the satellite?
A three level laser has energy levels E 1=1.50 eV, E 2=2.50 eV, and E 3=3.50 eV. Level E 2 is the metastable state. What is the lasing wavelength
Two objects attract each other gravitationally with a force of 2.5 * 10^-10N when they are .25m apart. There total mass is 5.00kg. Find their individual masses
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