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when you drop two balls at once why doesnt only one marble come off the end twice as fast write down the kinetic energy
suppose you are listening to the wkar fm radio station on a car radio the carrier frequency of the transmission is 905
a terrestrial telescope uses an objective and eyepiece with focal lengths of 42cm and 60cm respectivelya what should
a hydrogen atom initially in its ground state n1 absorb a photon and ends up in the n3 statewhat is the energy of the
determine the initial rate of heat transfer from a hot pack to a patient due to thermal conduction through the toweling
a cord of length 10m has two equal-length sections with linear densities of 050 kgm and 100 kgm the tension in the
a proton in a tin nucleus is known to lie with in a sphere whoes diameter is about 12x10-14m what is the uncertainty in
two moles of an ideal monatomic gas expands isothermally at a temperature of 43 c if the heat flow into the gas was 2
a childs toy consists of a spherical object of mass 50 attached to a spring one end of the spring is fixed to the side
when any radioactive dating method is used experimental error in the measurement of the samples activity leads to error
find the wavelength of light emitted by a hydrogen atom when the electron moves from n 7 quantum state to n 5 quantum
a single slit with width 820 nm is illuminated with light of wavelength 555 nm how many minima occur in the angular
the allowed energies of a simple atom are 00ev 35ev and 50ev an electron traveling at a speed of 16times106ms
a grl is strapped to a board that is moving so that gamma along the length of the board is 20 the board and direction
a 235kg ball moving at 420 ms to the right hits a 345kg ball head on that is travelling at 350 ms to the left the
a force gives a 100-kg mass an acceleration of 2 ms2 if the same force acts on a mass of 1000 kg what acceleration does
a car whose initial speed is 40 ms undergoes a constant acceleration of -5 ms2 for 6 s when its brakes are applied how
aaron mass 60 kg catches his running cat mass 5 kg moving horizontally at 15 ms what is the speed of aaron and his cat
the cutoff wavelength for a metal is found to be 300 nma calculate the work function for this metalevb the metal is
a spear fisherman estimates that a trout is 16 m below the waters surface what is the actual depth of the fishdepth
if you lie on the ground at night with no cover you get cold rather quickly much of this is due to energy loss by
a converging lens with a focal length of 880 cm forms an image of a 320cm -tall real object that is to the left of the
a block lies on a horizontal frictionless surface a horizontal force of 100 n is applied to the block giving rise to an
a pendulum of length 787 m is released from rest at an angle of 224 ordm from the vertical what is the maximum speed of
the exhaust fan on a typical kitchen stove pulls 600 cfm cubic feet per minute through the filter given that 100 in