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find the frequency of revolution of an electron with an energy of 500 ev in a magnetic field of 410 microt hz b
a 430-kg ball is dropped from a height of 145m above one end of a uniform bar that pivots at its center the bar has
a transformer with a turns ratio secondaryprimary of 180 is used to step down the voltage from a 120-v wall socket to
the average speed of blood in the aorta is 0294 ms and the radius of the aorta is 104 cm there are about 197 times 109
a 885 g block oscillates on the end of a spring whose force constant is k 56 nm the mass moves in a fluid which offers
you create a plot of t2 in s2 vs l in m and the linear fit of your graph gives a slope of 37484 plusmn 00069 what is
consider 1 cubic meter of dry at the surface with a temperature of 300 k and a pressure of 1000 mb problem 19 how much
yellow-gold is an alloy that is 7500 gold1600 silver and 900 copper by mass calculate the cost of the gold in a cube of
a rectangular coil 21 cm by 40 cm has 105 turns this coil produces a maximum emf of 65 v when it rotates with an
a 475turn circular-loop coil170cm in diameter is initially aligned so that its axis is parallel to earths magnetic
an optical fiber for something is made sio2 glass density 22 mgm3 how many si atoms and how many o atoms are present
a motor has coils with a resistance of27and operates from a voltage of242v when the motor is operating at its maximum
a coil with 150 turns a radius of 50cm and a resistance of 12 ohms surrounds a solenoid with 200 turnscm and a radius
each square meter of an actively growing forest fixes on a average each year 1 kg of carbon from the atmosphere into
shells of mussels clams are mainly of calcium carbonate usually the shell is stable and its content is in equilibrium
determine the total impedance phase angle and rms current in an lrc circuit connected to a 90 khz 800 v rms source if l
two bumper cars moving on a frictionless surface collide elastically the first bumper car is moving to the right with a
iron has a density of 787 gcm3 what mass of iron would be required to cover a football playing surface of 120 yds times
a current of 4 a flows in a copper wire 8 mm in diameter the density of valence electrons in copper is roughly 9 times
a 55-kg vampire and 171-kg werewolf clash during the feat of strength part of the annual celebration of festivus the
calculate the concentrations of acetic acid and sodium acetate necessary to produce a ph 55 solution that is 05 m in
hold a rubber band between your right and left hands pull with your left hand does your right hand experience a force
a rocket with mass m is fired vertically upward at the instant it reaches an altitude of 800m and a speed of v350 ms it
a 500 ml sample containing ni2 was treated with 250 ml of 050 m edta to complex all of the ni2 and leave some excess
a 1000 ml aliquot of a dibasic compound with kb1 110-4 and kb2 110-8 was titrated with 100 m hcl calculate what the ph