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Two stars in a binary system orbit around their center of mass. The centers of the two stars are 7.53x1011 m apart. What is the mass of the smaller star
what is the wavelength emitted due to an electron moving from an infinitely far orbit (n=infinity) to n=2? in what region of the electromagnetic spectrum is this wavelength
How long could the rocket hover just above the earth's surface and sHOW THE VELOCITY OF THE PARTICLE ALFA IS RHO ALFA OMEGA in the phi direction.
For the reaction Na2CO3(aq)+2HCl(aq)= 2NaCl(aq)+CO2(g)+H2O(l), suppose you have 100 mL of 3.80M Na2CO3. How many milliliters of 0.920 M HCl would you have to add to the sodium to consume the Na2CO3
Silver metal has a density of 10.5 g/cm3. how many silver atoms are in a cube that measures 5.00cm on each side
Determine the differential equation of motion for the damped oscillations and find the time (in term of M) it takes for the system to settle down to oscillations of only 25% of the initial amplitude;
While looking through the Mt. Palomer telescope, you discover a large planetary object orbited by a single moon. calculate the density of Planet Hephaestus
a piece of iron with a mass of 350g at 300 C is added to 1.00kg of water at 20 C. what is the final temperature of the iron
A piece of iron with a mass of 350g at 300 C is added to 1.00kg of water at 20 C. what is the final temperature of the iron
A small space telescope at the end of a tether line of length L moves at linear speed v about a central space station. What will be the linear speed of the telescope
The bismuth-cadmium phase diagram is of interest in metallurgy, and its general form can be estimated from expressions for the depression of freezing point
A 500 mL buffer solution containing 0.2M fomic acid and 0.25 sodium formate is mixed with 100ml of 0.05M HCl. What will be the pH of this new solution
Iron(II) chloride (melting point 677°C) and potassium chloride (melting point 776°C) form the compounds KFeCl3 and K2FeCl4 at elevated temperatures.
Chloropropionic acid, ClCH2CH2COOH is a weak monoprotic acid with Ka = 7.94 x 10-5 M. Calculate the pH at the equivalence point in a titration 38.2 mL of 1.05 M chloropropionic acid with 0.90 M KOH
Draw the product that is formed when 1-pentyne is treated with an excess of hydrogen gas and a nickel catalyst
After a hard rain, you walk out into the parking lot and notice an oil sheen on top of a puddle of water. What is the minimum thickness of the oil
Normal fasting levels of blood glucose in human are around 800mg/L. What is the molarity of glucose in the bloodstreem
A luggage conveyor belt is inclined at at an angle 15.6 degrees and has length 350m. Estimate the power required to operate the luggage conveyor
If each Halloween snack-sized candy bar is 15 g, how many Calories are consumed once you polish off a handful (6 candy bars) of Trick-or-Treating loot? (1 Calorie = 1 kcal)
What is dry THF. And can we use it as a general solvent in synthesis of ionic reactions of alkyl halides.
If you wanted to make 150mL of a NaCl solution at a concentration of 1.5%, how would you dilute a 1.0 M solution
How would you use an experimental distillation curve to determine the percent, by volume, composition of an unknown mixture
Will the recorded temperature change for an exothermic reaction performed in a glass calorimeter be greater or less that that in a styrofoam "coffee cup" calorimeter? Explain. Assume glass to be a b
Borrowed from a bank $34,327.08 - The interest rate was 6.50% from July1st 2006 until June 2010 when it was refinanced to 4.75%. The monthly payment paid to bank each month was $480.00 what is amou