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a sodium-vapor lamp has power output of 100 w using 5893 nm as the average wavelength of this source calculate the
if ammonia is obtained in 90 yield based on hydrogen how many tons of hydrogen are necessary to produce 100 mg of
a bowler throws a bowling ball of radius r 11 cm down a lane the ball slides on the lane with initial speed vcom0 65
a researcher is studying the relationship between earnings for major electronic firms and research and development
a solution is prepared by adding 324 grams of an unknown compound to 217 g of cyclohexane c6h12 this solution freezes
how many liters of antifreeze ethylene glycol ch2ohch2oh would you add to a car radiator containing 650 liters of water
t-test for two samples a drug company is measuring levels of oxygenation in patients after receiving a test medication
calculate the molality of a 0055 m solution of ethyl alcohol of in water at 25 c assume the density of the solution at
bond j is a 3 percent coupon bond bond k is a 9 percent coupon bond both bonds have 15 years to maturity make
two ideal inductors 0124 h 0433 h are connected in series to an ac voltage source with amplitude 517 v and frequency
exercise 1 the sedimentation of bovine serum albumin dbsa 1106 gcm3 was measured in water at 298 k at a spinning speed
assuming the density of acetic acid solution is 10 gml determine the volume of the acetic acid solution necessary to
given the reactants and products write balanced net ionic equations fr the following reactions supply h2o h or oh- as
a square box contains he at 25 degrees celsius if the atoms are colliding with the walls perpendicularly at the rate of
1 what is the formula of a compound that crystallizes with fluoride ions occupying all of the tetrahedral holes in a
a different nonscientist is going to make a new semiconductor iii-v solid but for reasons to discussed later the
a 0182 f capacitor is connected to a 240-v rms ac source at 454 hz find the reactance of the capacitorwhat is the rms
a diver makes 20 revolutions on the way from a 98-m-high platform to the water assuming zero initial vertical velocity
at what speed in meters per second must a 145 baseball be traveling to have a de broglie wavelength of
what happens to these physical properties as the strength of intermolecular forces london dispersion forces
a a man weighing 704 n lies on a bed of nails find the average pressure exerted by a nail on his skin if there are 1010
20 ml of 40 acetone 10ml 10 m hcl 10 ml 00050 m i2 10 ml h2owhat is the initial concentration of acetone h and i2 in
the motor of an electric drill draws a 811 a current at the power line voltage of 120 v rms what is the motors power in
how do you determine what region the electromagnetic spectrum lamda 867x10-7 m corresponds to uv visible or
the 650 nm590 nm intensity ratio for tetraphenylchlorin is 7 while the ratio for tetraphenyl porphyrin is 45 predict