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a 20cm length of 026mm diameter nichrome wire is welded into a circular loop the loop is placed between the poles of
two strings equal in length and made of the same material are subjected to tensions in the proportion of 1 to 4 the
a 99 cm long spring k 900 nm is compressed by 24 cm what is the potential energy due to the spring in
a cart with mass 310 g moving on a frictionless linear air track at an initial speed of 14 ms undergoes an elastic
calculate the molarity of a solution prepared by diluting 3688 ml of 0284 m potassium chloride to 1500
a conductor in the shapr of a sperical shell of radii 8 and 11 cm is charged to 20 uca find the electric field at the
the present limit of detection of thc in urine is 20 nangrams 1 nanogram 110-9 per milliliter of urine 1milliliter
a 05118 g sample of caco3 is dissolved in 6 m hcl and the resulting solution is diluted to 250 ml in a volumetric
this compund has been measured to be 6847c and 547h the rest is oxygen what is the empirical formula specifically how
write the molecular and net ionic equations for the reaction in aqueous solution of sodium sulfide and sulfuric acid
the only two forces acting on a body have magnitudes f1 and f2 and directions that differ by an angle in radians if
an aqueous solution of iron iii chloride reacts with magnesium solid to give solid iron an aqueous magnesium chloride
for the house in question 3 calculate the infiltration heat losses in btuh when t 40degf assume two air changes per
a car goes around a curve on a road that is banked at an angle of 315 degrees even though the road is slick the car
a conducting spherical shell of inner radius b and outer radius c is concentric with a small metal sphere of radius a
assuming that the electrical conductivity of a fcc unit cell of copper depends on the path of electricity along cube
two blocks attached by a string see figure slide down a 15deg incline block 1 has mass m1 091 kg and block 2 has mass
a thin flexible rod of length l10 cm carries charge q91 nc uniformly along its length the rod is then bent into a
the equilibrium constant kc for the reaction shown below is 417 10-34 at 25degc 2 hclg reverse reaction arrow h2g cl2g
a 50 gram ball enters a a pendulum with mass 200 g the pair then swings up to a height of 12 cmfind the velocity at
a rectangular pipe carries water over a horizontal distance of 10m water enters the pipe through an area of height 19cm
an element consists of 140 of an isotope with mass 203973 amu 2410 of an isotope with 2059745 amu 2210 of an isotope
the cheetah is one of the fastest accelerating animals for it can go from rest to 268 ms in 389 s if its mass is 103 kg
if some of the product contained magnesium nitride rather than magnesium oxide would the experimental mg be higher or
why are there so many animal viruses that carry their genome as rna but almost all bacteriophages