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the gas-phase reaction of no and f2 to form nof and f has an activation energy of 63 kjmol and a frequency factor a 60
an 760-cm-diameter 310 sphere is released from rest at the top of a 170-m-long 200 incline it rolls without slipping to
1 when a metal at a higher temperature is added to water at a lower temperature heat is inevitably lost to the
a long wire carries current of 300 a parallel to the positive x-axis except for three of the four segments that follow
a 150-g metal cylinder is placed on a turntable with its center 74 cm from the turntables center the coefficient of
2no2g ltgt n2o4 gan empty 10l flask at 1000 c is filled with 46 g of no2 g and allowd to come to equilibrium according
a 560-kg ice skater is moving at 394 ms when she grabs the loose end of a rope the opposite end of which is tied to a
predict whether the nuclear isotopes below will be stable if they are not stable be sure to choose the correct decay
thermal expansion increases the length of a clocks pendulum by a fractional increase of 41times10-5under these
some simple elemental superconductors called type i are perfect diamagnets meaning that their internal magnetic field
a mining lift with a 80kg cage should be able to pull up to the surface ten 90kg miners from a 20m deep well in 20s if
a simple harmonic oscillator with m 0665kg and total energy e 130j has amplitude 155m find the spring constant period
i have the apparent magnitude of the unknowns in the u-b bandwith and have charted the main sequence stars in relation
a hall sensor made from silicon is 040 nm thick and has a charge carrier density of 20 x 10 19 m-3 when it is placed in
a block of ice rests across the whole of a rectangular table a wire on which we attach a 10 kg weight surrounds the ice
the density of a 50-m long rod can be described by the linear density function x 125 gm 145x gm2 one end of the rod
a system consists of two particles particle 1 with mass 20 kg is located at 20 m 60 m and has a velocity of 26 ms 41 ms
the warm source of a carnot cycle has a temperature off 100 c while the cold source consists of melting ice when the
a toy car of mass 10 kg is stationary and a child rolls a toy truck of mass 47 kg straight toward it with a speed of 32
a commercial airliner is undergoing its initial ascent while the pilot maintains a cabin environment of t 23c r 035
a basketball player makes a jump shot the 0603 kg ball is released at a height of 207 m above the floor with a speed of
on a frozen pond a 131 kg sled is given a kick that imparts to it an initial speed of v0 242 ms the coefficient of
westerly winds coming off the pacific ocean rise over the rocky mountains which rise to a height of approximately 15000
the great pyramid of cheops at el gizeh in egypt had a height h 185 m before its topmost stone fell its base is a
a small lead ball attached to a 150-m rope is being whirled in a circle that lies in the vertical plane the ball is