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a 2 kg-block lifted straight up by a hand applying s force of 22 n has an initial kinetic energy of 15 j if the block
1 calculate the kinetic energy would an electron have a debroglie wavelength equal to that of yellow light lambda 585
an x-ray photon is scattered at an angle theta 180o from an electron that is initially at rest after scattering the
1 what is the maximum amount by which the wavelength of an incident photon could change when it undergoes compton
state why it is necessary to leave an air space in a closed glass bottle of water when it is to be kept in a
state two measurements you would take in an experiment to determine the upthrust of an object which is immersed in a
it takes an elevator 35 minutes to raise a vehicle with a weight of 4198 n from the floor to a height of 8 meters what
the windows in an office tower are coated with a film to minimize reflected light of wavelength 550 nm if the glass has
1 concept simulation 252nbspillustrates the concepts pertinent to this problem a 170-cm-high object is situated 222 cm
state the main reason as to why the magnetic field strength of a magnet is greatest at the
explain why the image formed in a pin hole camera gets blurred when the hole is
assignment circular motion gravitation and work and energyplease solve the following problems you must show all work
gravitational forceeach week you will reply to two discussion forum questions you may submit your answers together or
periodic waves spread out of the surface of a lake where two women jenny and melissa are fishing in separate boats 38
1nbspthe nucleus of a certain atom has a radius of 40 times 10-15 mnbspan electron orbits the nucleus at a radius of 15
a stone is thrown vertically upwards and reaches a height of 100 m determine the initial velocity of the
a 81 kg chunk of ice has a temperature of -30 degrees c the pressure is one atmosphere heat is added to the chunk until
an experiment is set up in a copper calorimeter of mass 82 g containing 841 g of water at 175 degrees c an iron ball
state the number of images formed when an object is between two plane mirror placed in
a 30-cm-wide diffraction grating has 2500 slits it is illuminated by light of wavelength 590 nmpart a what is the angle
a neutron decays into a proton and an electron write the decay reactions of a neutron using both nucleons and quarks
a 800 g aluminum pan is removed from the stove and plunged into a sink filled with 130 l of water at 195c the water
1 the potential at location a is 524 v a positively charged particle is released here from rest and arrives at location
a tube has a length ofnbsp0022nbspm and a cross-sectional area ofnbsp36nbspx 10-4nbspm2 the tube is filled with a
1 what is the minimum potential difference that must be applied to an xray tube to knock a k shell electron completerly