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Three charges sit at the corners of an equilateral triangle with sides of length d = 3cm. Calculate the electric potential at the centre of the triangle
For each of the following states described in the following list, calculate the final pressure, as well as q, w, ?U, and H. a) the gas is expanded isothermally and reversibly until the volume double
At 25 °C and 765 Torr, carbon dioxide has a solubility of 0.0342 M in water. What is its solubility at 25 °C and 1470 Torr
The Hall voltage across a conductor in a 44mTmagnetic field is 1.9?V. What is the strength of the second field
What is the de Broglie wavelength in cm, of a 12.7 g hummingbird flying at 1.15 multiplied by 102 mph (1 mile = 1.61 km.)
Determine the linear regression line relating Y to X and compute the F statistic and its associated P-value and the 95% confidence intervals for the slope and intercept.
What is the maximum work that can be obtained from a 340 L tank of compressed air at 4350 PSI
A solution of 75.0 g of benzene (C6H6) and 75.0 g of toluene (C7H8) has a total vapor pressure of 80.9 mmHg at 303 K. Another solution of 100.0 g benzene and 50.0 g toluene has a total vapor pressur
Consider a parallel plate capacitor with plates of size 2 cm times 2 cm, with a distance of 2 mm between the plates. find the speed with which the proton hits the negative plate
What statement below best describes the graph representing the integrated 1st order rate law plot of ln[a] vs t having a straight line negative slope equal to -k
A catapult on a cliff launches a large round rock towards a ship on the ocean below. calculate the value of the angle theta
The energy for the 5s valence electron in rubidium (Z=37) has energy ?4.18 electron volts. What is the effective nuclear charge Zeff experienced
If 10.00 mL of 0.050 M KI solution is mixed with 40.0mL of other reagents what would be the the diluted concentration of KI
A boy uses a slingshot to launch a pebble straight up into the air. The pebble reaches a height of 24.0 m above the launch point 2.3 seconds later, What was the pebble's initial speed
A solution of ammonia and water contains 2.70×1025 water molecules and 8.50×1024 ammonia molecules. How many total hydrogen atoms are in this solution
A circuit employs a silicon solar cell to detect flashes of light lasting 0.25 s. what is the minimum power of a flash of light of wavelength
cylinders of compressed gas are typically filled to a pressure of 200 bar. for oxygen, what would be the molar volume at this pressure and 25 degrees Celsius based on the van der waals equation
Identify and describe two examples of U.S. federal government expansion of authority between the beginning of the U.S. Civil War and the end of the Civil Right Era.
Heavy rains have flooded your professor's basement to a depth of 6 cm. This basement is 12 m by 10 m in area. find the speed of the stream of water leaving the hose
A one kilogram textbook drops from a one-meter high table in a room at 250C temperature. Find the change in entropy after the system has reached equilibrium
The balanced equation for trans-1,2-dibenzoylethylene in ethanol to give the product cis-1,2-dibenzoylethylene
In a first order decomposition in which the rate constant is 0.201 sec-1, how long will it take (in seconds) until 0.131 mol/L of the compound is left, if there was 0.566 mol/L at the start
Radio astronomers often study the radiation emitted by a hydrogen atom from a transition between the two hyperfine levels associated with the ground state
What benefits does one provide over the other and what pitfalls must the professional be aware of?