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Suggest a proper answer with proof for if frequency of incident radiation is doubled, what will be the effect on maximum kinetic energy of photo electrons
Calculate the maximum KE of electrons emitted from a photo surface of work function 3.2 ev for the incident radiation of wavelength 300 nm
If N= 200, r = 5 cm, I = 2.5 A, B = 0.25 T Plane of coil makes an angle of 60 degree, with field line. Calculate torque that must be applied to prevent
Two different elements with half lives Ta and Tb have Na & Nb (undecayed) atoms respectively, Determine the ratio of their activities at this instant
A coil with inductance 370 mH is connected in series with a 220 ohm resistor, a 47.0 microF capacitor and a 25.0 V, 60.0 Hz AC source. Find the total impedance in this circuit
A concrete slab is 9.7 cm thick and has an area of 4.6 m^2. What minimum power must be supplied to the coils to maintain a temperature difference of 17.3 Degrees C between the bottom of the slab and
Steam at 100 degrees C is added to ice at 0 degrees C. Find the amount of ice melted and the final temperature when the mass of steam is 13 g and the mass of ice is 48 g
A 120-V rms voltage at 60.0 Hz is applied across an inductor, capacitor and a 100-%u03A9 resistor in series. what is the rms value of the current in this circuit
A sphere that is a perfect blackbody radiator has a radius of 0.100 m, Calculate the net rate at which the sphere radiates energy
A 1.4Kg block and a 2.6kg block are attached to opposite ends of a light rope. what is the acceleration of the lighter block
An unknown substance has a mass of 0.125 kg and an initial temperature of 94.7. calculate the specific heat of the unknown substance
In the annual battle of the dorms, students gather on the roofs of Jackson, A second balloon launched at the same angle hits the edge of Walton's roof. Find the initial speed of this second balloon
A small wooden block with mass 0.875kg is suspended from the lower end of a light cord that is 1.80m long. What was the initial speed v0 of the bullet
The suspension system of your 1200 kg car has a natural oscillation frequency of 2.00 Hz without functioning shock absorbers. At what speed are you driving
A 200 keV electron strikes a copper target and is brought to rest producing a single X-ray photon. What is the Compton scattering angle relative to the direction of the incident X-ray
A head-on, elastic collision between two particles with equal initial speed vleaves the more massive particle (massm1) at rest. Find the final speed of the less massive particle
A circular loop carrying a current of 1.0A is oriented in a magnetic field of 0.35 T. What is the torque on the loop when its plane is oriented at a 25 degree angle to the field
A sinusoidal wave travels along a stretched string. A particle on the string has a maximum velocity of 0.900m/s, What is the amplitude of the wave
A merry-go-round (I= 500 kg m^2) of radius R = 2 meters is rotating about a frictionless pivot, making one revolution every 5 seconds. Find the new angular speed of the merry-go-round
A uniform thin disk (I=1/3ML^2) of length L and mass M is pivoted at one end. It is held horizontal and released. Find the angular acceleration of the stick immeidately after it is released
A 40 kg skateboarder (Ms) on a 3 kg board (Mb) is training with two 5 kg weights (Mw). How fast is he propelled in the opposite direction after the weights are thrown
High-speed photos of a 200%u03BCg flea jumping vertically show that the jump lasts 1.5ms, What average force does the ground exert on the flea during its jump
A 3.0 uF capacitor is put across a 12 V battery. What is the initial current through the resistor when the switch is closed
A 10 uF capacitor carries an initial charge of 80 uC. If a resistance of 25 omega is connected across it, what is the initial current in the resistor
A 3.0 cm tall statue is 48 cm in front of a biconvex lens (focal length 20 cm), how high is the image