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the original ferris wheel built by george ferris had a radius of 38 m and a mass of 19 x 106 kg assume that all of its
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an estimated 3kg-gromit was tied to a bungee cord to clean the windows of wendolene ramsbottoms wool shop the other end
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an electron is located on a pinpoint having a diameter of 190 microm what is the minimum uncertainty in the speed of
a 520 kg object falls from a height of 29 m to the ground if all the gravitational potential energy of this mass could
a pesky 17 mg mosquito is annoying you as you attempt to study physics in your room which is 45m wide and 25 m high you
a 0954 kg toy car is powered by four aa batteries 600 v total connected directly to a small dc motor the car has an
the proper length of one spaceship is three times that of another the two spaceships are traveling in the same
an electron is in the sixth excited orbit of hydrogen corresponding to n 7a find the radius of the orbitnmb find the
red light of wavelength 6710 nm produces photoelectrons from a certain photoemissive material green light of wavelength
when light of wavelength 360 nm falls on a lithium surface electrons having a maximum kinetic energy of 115 ev are
a what is the surface temperature of betelgeuse a red giant star in the constellation of orion which radiates with a
the cookie you will eat after this exam will have a mass of 186 grams how much energy would this cookie give you if it
a neighborhood transformer on the top of a utility pole transforms 140 kv 600 hz alternating voltage down to 1200 v to
a what is the magnitude of the electric force between a proton and an electron when they are at a distance of 191
the magnetic field due to a 2-a current flowing in a long straight wire is 8 t at a point p a certain distance away
two point charges of magnitude 40 c and -40 c are situated along the x-axis at x1 20 m and x2 -20 m respectively what
prior to launching a stone from a sling a bolivian native whirls the stone at 30 revolutions per second around a circle
engineers have proposed that large flywheels be used for the temporary storage of surplus energy generated by electric
a transformer has 330 primary turns and 1340 secondary turns the input voltage is 120 v and the output current is 150 a
the big bang theory suggests leftover background radiation this corresponds to the baseline temperature of space which
the nearest star to earth is proxima centauri 43 light years awaya at what constant velocity must a spacecraft travel
suppose you decide to travel to a star 85 light years away at a speed that tells you the distance is only 25 light