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The work function for platinum is 6.35 eV.(a) Convert the value of the work function from electron volts to joules.J(b) Find the cutoff frequency for platinum.Hz(c) What maximum wavelength of light incident on platinum releases photoelectrons from the platinum's surface?m(d) If light of energy 7.2 eV is incident on platinum, what is the maximum kinetic energy of the ejected photoelectrons? Give the answer in electron volts.eV(e) For photons of energy 7.2 eV, what stopping potential would be required to arrest the current of photoelectrons?V
A rectangular coil of 100 turns measure 40cm by 20cm. This coil is placed next to an electromagnet which is switched on, what are the induced voltage and current in the coil
A box weighing 215 N is placed on an incline plane that makes an angle of 350 with the horizontal. Compute the component of the weight perpendicular the plane
Suppose your favorite FM radio station broadcasts at a frequency of 99.9 MHz. What is the wavelenght of this signal
Of the charge Q initially on a tiny sphere, a portion q is to be transferred to a second, For what value of q/Q>0.5 will the electrostatic force between the two parts have 1/2 of the maximum possible value
Type your question here Working on a bikeup side down, you spin the 70 cm wheel and you notice a pebble stuck in the threads goes by three times every second. What is the pebbles speed
A pump is required to lift a mass of 780kg of water per minute from a well of depth 13.7m and eject it with a speed of 17.9m/s, What must be the power output of the pump
If the image is virtual, what is the object location for which the magnitude of the image distance is one third the magnitude of the object distance
q1. after a tornado a 0.60 straw was found embedded 2.7 into the trunk of a tree. if the average force exerted on the
The magnetic flux through a loop of wire is ?B = 5.7 T · m2. what is the smallest possible value for the area of the loop
A wire of length, L, and mass density, ?, is positioned parallel to and directly over another much longer wire. what is the seperation between the two wires
question1a theory of nuclear astrophysics proposes that all the elements heavier than iron are formed in supernova
150ml of water at 20.0C is placed in the freezer compartment of a refrigerator with a coefficient of performance of 6.00. How much heat energy is exhausted into the room
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