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zinc has a work function of 430 ev a 480 ev photon strikes the surface and an electron is emitted what is the maximum
the resistance of a bagel toaster is 14 to prepare a bagel the toaster is operated for one minute from a 120-v outlet
the bonding of silicon in solids and molecules is qualitatively the same as that of carbon silicon atomic states become
nbspnbspan object of mass 40 kg starts at rest from the top of a rough 30 degree inclined plane of height 10 m if the
a brick is initially 1464 cm high and an aluminum can is initially 1465 cm high by how much must their temperatures be
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by how much will nbspvolume of coolant in an automobile radiator increase when its temperature increases by 130 cdeg if
two uniform solid spheres have the same mass of 195 kg but one has a radius of 0230 m while the other has a radius of
a comet moves about the sun in an elliptical orbit with its closest approach to the sun being about 0680 au and its
a 0534-nm photon collides with a stationary electron after the collision the electron moves forward and the photon
a straight wire of radius r carries uniform current density j find the magnetic field inside and outside the wire as a
a 350v battery with negligible internal resistance a 500v resistor and a 125mh inductor with negligible resistance are
when light of wavelength 380 nm falls on a cesium surfaceelectrons are emitted that have a maximum kinetic energy of
one rod is made from lead and another from quartz the rods are heated and experience the same change in temperature the
the blades in a blender rotate at a rate of 7100 rpm when the motor is turned off during operation the blades slow to
a beam of light is incident upon a flat piece of glass n 150 at an angle of incidence of 45 degrees part of the beam is
in an ultra-low-temperature experiment a collection of sodium atoms enter a special state called a bose-einstein
an electron moves at right angles to a magnetic field of 011 t find what is its speed if the force exerted on it is 76
if jupiter emitted just as much energy per second as it receives from the sun the average temperature of the planets
an airplane is flying at 175kmhr on a headwind of 45 degrees the wind is blowing from 300 degrees at 45 kmhr find the
question 1 a spring of spring constant k 8250 nm is displaced form equilibrium by a distance of 01500 m if the spring
a ball of mass m is moving horizontally at 600ms it collides in elastically with a block with mass 3 m that is