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A parallel-plate capacitor is formed from two 3.60cm × 3.60cm electrodes spaced 2.70mm apart, What is the charge (in nC) on each electrode
When resistors 1 and 2 are connected in series, the equivalent resistance is 19.7 ?. When they are connected in parallel, the equivalent resistance is 3.96 ?. What are the larger resistance of these
A 30.0?F capacitor is charged to 210?C and then connected across the ends of a 4.20mH inductor, Find the maximum current in the inductor
The Large Hadron Collider, or LHC, to be completed later this year, accelerates protons around a nearly circular track of circumference 26.66 km to a momentum of up to 3.74e-15 kg m/s, For the same
A parallel-plate air-filled capacitor having area 50 cm2 and plate spacing 1.3 mm is charged to a potential difference of 710 V, find the energy density between the plates
A beam of blue light of wavelength 500 nm has an intensity of 170 W/m^2, How many photoelectrons are emitted from the potassium plate per second
A positively charged He+ atom has two protons in the nucleus and one electron in the shell. In a classic model of the atom, What is the radius of the orbit
Two identical small insulating balls are suspended by separate 0.23-m threads that are attached to a common point on the ceiling, Determine the charge on each ball
A proton is introduced at rest at a distance of 2 x 10^-14 from a bare nucleus of uranium, What is its kinetic energy in eV when it is expelled to infinity
The current in a solenoid with 21 turns per centimeter is 0.45A, Find the magnitude of the net magnetic field a radial distance of 0.70 cm from the straight wire.
A neon sign requires 10000 V for its operation. It operates from a 220 V receptacle. What must be the turns ratio Ns/Np of the transformer
A uniform electric field has a magnitude 2.40 kV/m and points in the +x direction, Find the expression for the electric potential V(x) if its value is chosen to be zero at x = 0
The solar constant is the power received from the Sun per unit area perpendicular to the Sun's rays at the mean distance of Earth from the Sun, Calculate the effective temperature of the Sun if it r
A dielectric-filled parallel-plate capacitor has plate area A = 10.0cm2 , plate separation d = 5.00mmand dielectric constant k = 5.00. Find the energy U1 of the dielectric-filled capacitor
Suppose that you wish to fabricate a uniform wire out of 1.00 g of copper. Assume the wire has a resistance R = 0.700 ?, What will be the length of the wire in µm
Three point charges are placed at the corners of an isosceles triangle. At the left and right end points of the base are 6 micro coulomb and 6 micro coulombrespectively, What is the magnitude of the
A small conducting spherical shell withinner radius a and outer radius b is concentric with a larger conducting spherical shell with inner radius c and outer radiusd, calculate the e
A small charged bead has a mass of 2.0g . It is held in a uniform electric field E? = (200,000 N/C, up). What is the charge on the bead
Light of a wavelength 450 nm is incident on a sodium emitter in a photoelectric effect apparatus. Sodium is 2.3 eV, What is the stopping potential for the emitted electrons
A dance studio has flat mirrors on opposite walls, and multiple images are observed when a person stands between them, What is the image distance for the first image behind the north mirror
The work done by an external force to move a -7.75 µC charge from point a to point b is 25.0 ? 10-4 J, what is the magnitude of the potential difference between a and b
A diver has a vertical velocity of -12 m/s when she is 1.8 m above the water. What was her peak height
A 20.0 ?, 9.00 ?, and 9.00 ? resistor are connected in parallel to an emf source. A current of 6.00 A is in the 9.00 ? resistor. Calculate the equivalent resistance of the circuit
Two loudspeakers emit 400Hz notes. One speaker sits on the ground. The other speaker is in the back of a pickup truck, What is the truck's speed in m/s
Two children hang by their hands from the same tree branch. The branch is straight, and grows out from the tree trunk at an angle of 25.7° above the horizontal, What is the magnitude of the net