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the work function for platinum is 635 eva convert the value of the work function from electron volts to joulesjb find
a 230 kg child plays on a swing having support ropes that are 210 m long a friend pulls her back until the ropes are
a meter stick is supported on a fulcrum at the 19 cm mark a 060 kg object is hung from the zero end of the meter stick
electrons are ejected from a certain metallic surface with speeds ranging up to 42 105 ms when light with a wavelength
a spring has a spring constant of 25 nm and a mass of 075 kg is suspended from it if i pull the mass down by 013 m out
in designing a machine part you need a spring that is 845 cm long when no forces act on it and that will store 240 j of
the threshold of hearing is defined as the minimum discernible intensity of the sound it is approximately find the
unpolarized light is incident on a linearly polarizing filter oriented 30o with respect to the horizontal the light
justin moves a desk 480m across a level floor by pushing on it with a constanst horizontal force of 340n it slides for
an illuminated arrow object forms a real inverted image of itself a distance d 40 cm measured along the optic axis of
a 605 n woman climbs a staircase that rises at 47 degrees above the horizontal and is 470 m long her speed is a
an upright object is placed a distance in front of a converging lens equal to twice the focal length f1 of the lens on
a man standing on very slick ice fires a rifle horizontally the mass of the man together with the rifle is 70rm kg and
1 how is the north pole of a compass needle defined based on this do the geographic and magnetic north poles on earth
the brightest star in the night sky is sirius which is at a distance of 83x1016 m when we look at this star how far
the mean distance between the earth and the sun is 15x1011m the average intensity of solar radiation incident on the
chuck ted and sally are roommates and each day one of them must wash the dishes if ted washes dishes one day then
a 025 kg puck is initially stationary on an ice surface with negligible friction at time t 0 a horizontal force begins
in the circuit the inductor is 265h and when connected to a capacitance c it will form a low frequency oscillator of
at the dog track you notice that there are 10 dogs racing you place a bet that you can guess the top three finishers
martin commutes to work each day he either drives his car takes the bus or takes a taxi he never drives his car two
each edge of the complete graph with 11 vertices is colored either red or blue we then look at the graph consisting
for a promotion a store offers to pay the sales taxes on any item you buy you are really paying taxes but they are on
a capacitor is charged with a 120v battery and is then connected to a 265 h inductor at t0sec to form an oscillator
a nucleus of mass number a initially at rest absorbs a neutron which is moving very slowly of negligible kinetic energy