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Every year, there is a foot race to the top of the Empire State Building. The vertical distance traveled (using the stairs!) is about 440 m. what was his average power output during the race
Eugenol can also be isolated from cloves using extraction with CO2. discuss the advantages and disadvantages of distillation versus CO2 extraction.
A projectile is launched at an angle of 34^{\circ} above the horizontal. The projectile has a mass of 1.50 kg and is given an initial speed of 20.0 m/s. What is the initial kinetic energy of the pro
Normalize the following wave function for a particle that can only exist between theta= 0 and pi. Then calculuate the probability of finding the particle within the range theta= pi/4 and pi/2.
The energy of the first excited state of a hydrogen atom is -0.34 eV ± 0.0003 eV. What is the average lifetime of for this state
The density of water in Earth's hydrosphere and the density of rocks in the crust are both lower than the average density of the planet as a whole
The reaction below might be a suitable coupled reaction reaction to provide the energy for which of the reaction ( a-e)
An electromagnetic wave in a vacuum has a magnetic field with a magnitude of 1.4 10-6 T. What is the intensity S of the wave
100g of metal x (csp=.21 j/gC) at 200C is put into 55g of water (Csp=4.184j/gC) at 24C. what is the final temperature
To measure the static friction coefficient between a 2.2-kg block and a vertical wall, the setup shown in the drawing is used. What is the coefficient of static friction
the pressure is found to be 1atm. 3 g of gaseous substance B are then added to the 2g of A, and the pressure is now found to be 1.5 atm. Assuming ideal gas behavior. calculating the ratio of molecul
An LC circuit is built with a 20 mH inductor and an 8.0 microF capacitor. After what time is the capacitor fully charged
A small light has a 1.0 V, 4.8 W bulb that is powered by a transformer concocted to a 120 V dc power source. How many turns does the primary coil have
the two flask are filled with nitrogen gas and when both are immersed in boiling water the gas pressure inside the system is .5 atm. one of the flask is then immersed in an ice water mixture, keepin
A conductive loop of radius r = 1.0 cm falls towards a stationary solenoid of 100 turns per cm carrying a current of I = 2.00 A. What is the direction of the current induced in the loop
Given that the density of air is 740 torr and 27C is 1.145g/l, calculate the mole fraction and partial pressure of nitrogen and oxygen assuming
a boeing 747-8 with wingspan of 65.5 m is cruising at 289 m/s over northern canada, What is the potential difference between the tips of the wings
compare the length of a column of mercury to that of a column of water required to produce a pressure of 1.0 bar. the densities of mercury and water at 0C are 13.459g/cm^3 and .99987g/cm^3
A child ties a rock to a string and whirls it around in a horizontal circle. Find the period of its uniform circular motion
If you measured absorbances of a product in different solutions at 470 nm and used a molar extinction coefficient of 4234 M^-1 cm^-1 in your calculations.
When iron chloride FeCl3 is dissolved in water the solution becomes acidic. The preparation of the Fe(NO3)3 solution and the KSCN solution used 0.5 M HNO3 as the solvent instead of water. Explain wh
A 2.5 kOHM and a .5kOHM resistor are connected in parallel; this combination is connected in series with a .583kOHM resistor. find the maximum voltage that can be applied by the battery
The electric field of an electromagnetic wave in a vacuum isEy = (17.0 V/m)cos((6.28 ×108)x??t), where x is in m and t is in s. What is the wave's magnetic field amplitude
For the following reaction, 21.9 grams of sodium chloride are allowed to react with 67.0 grams of silver nitrate. sodium chloride (aq) + silver nitrate (aq) silver chloride (s) + sodium nitrate (aq)
A 10-cm-diameter parallel-plate capacitor has a 1.0 mmspacing. What is the magnetic field strength on the axis