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a 1500 kg car has a speed of 35 ms if it takes 7 s to stop the car what is the impulse and the average force acting on
a add 006g of naoh mw40gmol to 1 l of acid solution to 001 m of carboxylic acid at ph3 what is final ph no volume
two identical uniform bricks of length 26 m are stacked over the edge of a horizontal surface what maximum overhang is
a water sample is found to contain 23ppm iodinei if you drank 1399ml of this water how many moles of iodinei would you
inside a sealed wooden box of mass m there hangs by a thread of negligible mass a lead pellet also of mass m at some
once the chromatographic column has been prepared why is it important to allow the level of the liquid in the column to
two astronauts are at rest in outer space one 197 m from the space shuttle and the other 394 m from the shuttle using a
the half-life of a reaction is the time it takes for the reactant concentration to decrease by half for example after
a tuning fork vibrating at 513 hz falls from rest and accelerates at 980 ms2 how far below the point of release is the
a 129-f capacitor a 221-k resistor a switch and a 250-v battery are connected in series what is the rate of change of
the ionization energy for sodium is 496 kjmol the electron affinity for chlorine is -349 kjmol use these values and
suppose the wheel is rotated at a constant rate so that the mass has an upward speed of 467 ms when it reaches a point
suppose that charges on a dipole antenna oscillate slowly at a rate of 1 cycles and the antenna radiates
a solution containing 130 sodium hydroxide by mass has a density of 1131 gml sodium hydroxide has a density of 2130 gml
1 for your most exact titration record the followinga volume of naoh solution in the burette at the start mlb volume of
if 0420 mol of a nonvolatile nonelectrolyte are dissolved in 320 mol of water what is the vapor pressure prm h2o of the
the second orbit for the only electron in a he ion has a radius of 529 x 10-11 m what is the speed of an electron in
use the gibbs-duhem relation to solve the following problem a gas has n 1025 particles contained in a cubic meter at
two particles of equal but unknown charge are held 45 cm apart if their electrostatic repulsion is 22 x 105 newtons
two equal but oppositely-charged particles are placed 100 m away from each other if the magnitude of the electric field
calculate the expectation values of x and x2 for a particle in the state n2 in a square-well
a 27 cm long solenoid 18 cm in diameter is to produce a 028 t magnetic field at its center if the maximum current is 57
what type of alkane matches in molecular formula an alkene give a specific example for a particular alkane and a
the magnetic field perpendicular to a single 137 cm diameter circular loop of copper wire decreases uniformly from 0600
an ac power generator produces 50a rms at 3600v the voltage is stepped up to 100000v by an ideal transformer and the