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the wheels of an automobile are locked as it slides to a stop from an initial speed of 300 ms if the coefficient of
a pendulum has a mass of 37 kg a length of 17 meters and swings throughhalfarc of 281 degrees what is its amplitude to
a very long solenoid with a circular cross section and radius r 810 cm with n 150e 4 turnsm has a magnetic energy
a 1000 kg car is moving at a constant speed of 7ms when it hits the back bumper of another car with 1200 kg of mass
two co-centric hollow spheres have radii of r1 and r2 and have uniform surface charge densities s1 and s2 the two
one and one-half moles of an ideal monatomic gas expand adiabatically performing 7910 j of work in the process what is
a heavy but uniform rope of length l is suspended from a ceiling a particle is dropped from the ceiling at the instant
a steel rod of mass m and length l has the linear expansion coefficient x it is standing vertically and supports a box
a 1000kg car is moving at a constant speed of 7 ms when it hits the back bumper of another car with 1200kg of mass
for which of the following equilibria does kc correspond to an acid-ionization constant ka nh3aq h3oaq nh4aq h2ol
suppose a buffer solution is made from formic and hcho2 and sodium formate nacho2 what is the net ionic equation for
a child makes a ramp to push his toy dump truck up to his sand boxif he uses 5 newtons of force to push his 12 newton
a horizontal force of 80n acts on a mass of 6 kg resting on a horizontal surface the mass is initially at rest and
04 mol of a gas is heated at constant pressure so that its temperature increases from 21deg c to 7983 deg c as a result
block sliding into spring a block of mass m 55 kg is released from rest at a height of h 30 m on a curved
one end of a metal rod is in contact with a thermal reservoir at 691 k and the other end is in contact with a thermal
what is the ph of a solution that is 029 m in acetic acid hc2h3o2 and 074 m in sodium acetate nac2h3o2 at 25degc ka of
a 127-kg block initially slides at 131 ms on a flat rough surface and eventually stops if the block cools to the
an outboard motor for a boat is cooled by lake water at 147degc and has a compression ratio of 149 assume that the air
consider the following chemical equation na3po4aq caoh2aq ca3po42s naohaq how many grams of calcium hydroxide must
although the mechanism of the acid catalyzed ring opening polymerization of sigma-decalactone is slightly different
with each cycle a 2550-w engine extracts 2180 j from a thermal reservoir at 877degc and expels 1570 j into a thermal