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The fact that photons hitting a metal will release electrons is the quintessence of the photoelectric effect. When the minimum energy needed to free a photoelectron from sodium is 1.8 eV, determine
The isotropic point source radiates uniformly in all directions. When the electric field amplitude at 10 meters from the source is calculated to be 10 V 1m, find out the radiant flux (power).
A focused CO2 laser beam putting out a continuous wave (λ0 = 10,600 nm) of 3 kW is able of burning a hole via a quarter-inch thick stainless steel slab in around 10 seconds. Find out the irra
For series circuits, let consider configurations having 3 resistors of no less than 1 ohm each. Show instance computations with a net voltage of no more than 15 volts. Determine the voltages and cur
Determine what would the elastic modulus of glass have to be to support the transmission of light waves at a speed of v = 2.21 x 108 m/s? (For comparison: the real elastic modulus of window glass is
The resistor and an inductor are joined in series to the ideal battery of constant terminal voltage. At the moment contact is made with the batter, the voltage across the resistor be?
A coil lies flat on the table top in an area where magnetic field suddenly grows stronger. If viewed from above, determine the direction of the induced current in this coil as the field reduces?
A resistor L is located in series with resistor R. The combination is placed in parallel with the other resistor R and a DC battery having voltage E. The net current leaving the battery at the momen
The central bright fringe in the single slit diffraction pattern from the light of wavelength 542 nm is 1.8 cm wide on a screen which is 1.05 m from the slit.
Determine the initial angular velocity of the fly-wheel if, after two minutes, the flywheel is rotating clock-wise at 250 rad/sec and the acceleration of the fly-wheel is a constant 4 rad/sec^2, clo
Determine the (i) x-component and (ii) y-component of the velocity of the third part? (iii) Determine how much energy is liberated in the explosion? Avoid effects due to the gravitational force.
We wish to evaluate the times of flight of two light beams; one in a tank of carbon tetrachloride (n = 1.46), the other in air (n = 1.0). When the path lengths are made the same, determine how long
The magnetic field is perpendicular to a circular coil of 5 turns and diameter 20 cm changes from +1.85T to -0.25 T in 30ms. Determine the change in magnetic flux and induced emf?
A truck driver trying to deliver some furniture travels 8 km east, turns around and travels 3 km west, and then travels 12 km east to his destination. i) Determine what distance has the driver trave
Throughout the motion a safety clamp exerted a constant force 17000n frictional force to the elevator. Determine the constant force of the spring must be.
In a RLC circuit, a second capacitor is joined in series with the capacitor before in the circuit. Determine the effect of this change on the impedance of the circuit?
Then the force (in Newton) applied by the expanding gas on the bullet is 15000 + 10000x – 25000 x2, where x is in meters. (i) Find out the work done by the gas on the bullet as the bullet travel
You encompass three mass arranged: M1 is 2kg at (-4m, 0), M2 is 2.5kg at (0, 2m) and M3 is 1.5kg at (4m,-2m). Where is the center of mass of the system? (Determine both the xCM and yCM.)
Determine the velocities of each of the masses after the band breaks. (Make a draw and point out the directions in terms of your coordinate system.)
Suppose that the star is a uniform sphere at all times (i) Suppose that the thrown-off mass carries off no angular momentum,
A biconvex lens consists of a focal length of 12cm. A 4cm tall candle is positioned 18cm in front of the lens. Determine the characteristics of the image. Employ the diagram and the lens equation.
Determine the speed of a satellite moving around the earth in a circular orbit which consists of a radius equivalent to four times the earth's radius of 6.38 x 106 m.
i) Determine the wavelength of the sound. ii) Draw the standing wave for the air displacement in front of rock face and find where Grizelda should sit in order to be at node.
A baseball having mass 500 grams is thrown down from bridge 180m above the water having initial velocity of 12 m/s i) Determine the velocity when it strikes the water?
A car is traveling 80 mi/hr, when the diameter of the wheels are 80 cm i) Determine the angular speed of the wheels?