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a what is the surface temperature of betelgeuse a red giant star in the constellation of orion which radiates with a
an object of mass m 44 g and charge q 32 microc is attached to a string and placed in a uniform electric field that
two small plastic balls hang from threads of negligible mass each ball has a mass of 019 g and a charge of magnitude q
chris jumps off a bridge with a bungee cord a heavy stretchable cord tied around his ankle as shown in the figure he
a 1500 kg blue car was travelling at 90 kmh a 1200 kg red car was traveling behind the blue car at 108 kmhwhen the two
this problem is in a beaker the large container shown in the picture above is filled with a liquid of density 11e3 kgm3
1 describe a wave pulse and a continuous progressive traveling wave2 describe and give examples of transverse and
an insect trapped in a circular groove of radius 12 cm moves along the groove steadily and completes 7 revolutions in
an astronaut accidentally gets separated out of his small spaceship accelerating in inter stellar space at a constant
you want to lift a 500-lb object with a lever you can place a falcrum under a long board a distance of 15 ft from the
the element x occurs naturally to the extent of 200 superscript 12x and 800 superscript 13x the atomic mass of x is
in a headon collision without friction a 4000 kg truck going 10ms due east strikes a 2000kg car gong 40ms west after
2000 ml of 0750 m calcium nitrate is added to 1000 ml of 0500 m ammonium sulfate what is the mass in grams of
the titanic was found in 1985 lying on the bottom of the north oceanthe pressure that the titanic felt at that depth
a cat with mass 45 kg is sitting on top of a turntable of mass 20 kg and radius 14 m both the cat and the turntable are
using data from appendix d calculate oh- and ph of a mixture 010 m in nano2 and 020 m in
a baseball is thrown from the roof of a 220 m tall building with an initial velocity of mag 120 ms and directed at an
without belaboring the fact food is just a mixture of chemicals the pleasant fruity odor from some foods is often due
magnetic field lines can be entirely confined within the core of a toroid but not within a straight solenoid
two air hockey pucks moving with identical speeds v collide on a level table with respect to the table puck 1 is moving
coulombrsquos law for electrostatic force between two point charges and newtonrsquos law for gravitational force
a sound pulse emitted underwater reflects off a school of fish and is detected at the same place 001 seconds later how
consider these aqueous solutions 020m nh4cl 020m cacl2 025m nacl and 030m sugar assume these are all ideal solutions
an early model for an atom considered it to have a positively charged point nucleus of charge ze surrounded by a
for a given first order reaction the rate constant is 000035 s-1 how many minutes will it take for a reactant