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a block of mass m 0828 kg is fastened to an unstrained horizontal spring whose spring constant is k 913 nm the block
a 1299g sample of copper that is at 70celsius is added to 100g of hot water is initially at 932 celsiusa from the first
a roller coaster cart with a mass of 116 kg is originally moving at 22 ms at a height of 24 meters above the ground on
a 100-coil spring has a spring constant of 560 nm it is cut into four shorter springs each of which has 25 coils one
the free energy change delta gt at 2400 k is equal to 122105 jmol calculate the equilibrium constant at 2400
a motorcyclist is traveling along a road and accelerates for 698 s to pass another cyclist the angular acceleration of
how would the value of the atomic mass of the metal calculated be affected if the hot metal sample cooled off before it
a current of270ma is maintained in a single circular loop of340m circumference a magnetic field of0410t is directed
under some circumstances a star can collapse into an extremely dense object made mostly of neutrons and called a
when thallium chloride tlcl dissolves in water and forms a saturated solution it establishes the equilibriumtlcls
musicians can use beats to tune their instruments one flute is properly tuned and plays the musical note a at exactly
a the enthalpy of combustion for c6h12o6s is -2830kjmola write a balanced equation for the combustion of c6h12o6 in
an object is placed directly between a large planet and a star find the distance from the planet for which the net
a current of 180 ma is maintained in a single circular loop of 220 m circumference a magnetic field of 0690 t is
a playground merry-go-round has radius 220m and moment of inertia 2800 kgm2 about a vertical axle through its center
1 define the terms ldquocoefficient of static frictionrdquo and ldquocoefficient of kinetic frictionrdquo2 what is
a conductor carrying a current i 147 a is directed along the positive x axis and perpendicular to a uniform magnetic
a what is the rms current in a series rc circuit if r 54 k-ohms c 095 microf and the rms applied voltage is 110 v at
a 300-kg block starts from rest at the top of a 350deg incline and slides 200 m down the incline in 150 sa find the
calculate the ph of 100 ml of 031 m nh3 before and after the addition of 45 g of nh4no3 and account for the change
by means of a rope whose mass is negligible two blocks are suspended over a pulley as the drawing shows the pulley can
a string is wrapped several times around the rim of a small hoop with radius 800 cm and mass 0180 kg the free end of
a 048 m long guitar string of cross-sectional area 10 10-6 m2 has youngs modulus y 190 109 nm2 by how much must you
a beam of unpolarized light shines on a stack of five ideal polarizers set up so that the angles between the
a heat pump has a coefficient of performance of 375 and operates with a power consumption of 713 103 wa how much energy