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Determine the wavelength associated with a 20Ne+ ion moving at a velocity of 2.0 x 105 m/s. The atomic mass of Ne-20 is 19.992 amu.
A piece of chromium metal with a mass of 24.26 g is heated in boiling water to 98.3 degrees Celsius and then dropped into a coffee-cup calorimeter which is having the 82.3 g of water at 2
Two loudspeakers produce sound waves all along the x-axis. The sound consists of maximum intensity if the speakers are 20 apart. The sound intensity reduces as the distance among the speakers is rai
She stayed in City B 10 hours, and on the trip back averaged 40 mi/h. She was back home 46 hours after leaving. How many miles is City A from City B.
Moving a charge from point A, where the potential is 320 , to point B, where the potential is 150 , takes 4.2x 10-4 of work. Determine the value of the charge?
At 22oC a sample of gas is held in a 3.00L container connected to a mercury manometer. The mercury level in the manometer is13.2 cm and the pressure of the atmosphere is 9.87 x 104 Pa higher on
If the temperature and pressure are such that Vm=10b, calculate the numerical value of the compression factor? Derive an expression for the compression factor of a gas that obeys the equation of st
Explain how far does the spring compress when the bullet becomes embedded in the block? Suppose that a spring constant of 500 N/m.
At 298K a quantity of N2 (g) is compressed adiabatically and reversibly from a volume of 20.0 L to5.0 L. Assuming ideal behavior, determine the final temperature of the N2 (g). Take C bar v = (5/2)
A particle of 3.0 kg having velocity v = (5.0 m/s) ihat - (6.0 m/s) jhat is at x = 3.0 m, y = 8.0 m. This is pulled by a 7.0 N force in the negative x direction. (i) Determine the angular momentum
Holly can run 60 yards in fifteen seconds. Jamie can run same distance in 18 seconds. If Jamie is 25 yards ahead of Holly when they both begin running, how long it takes for Holly to catch Jamie?
A toothpaste which is having 0.24 by mass sodium fluoride used to prevent the dental caries and 0.30 by mass triclosan , a preservative and ant gingivitis agent.
The two vehicles are approaching an intersection. One is a 2500 pickup traveling at 13.0 from east to west (the -x direction), and another is a 1600 sedan going from south to north (the +y directio
Determine the numbers of moles of H+ are present in 140 ml of HCL solution with PH of 3.10? Determine the PH of 350.0 of an aqueous solution containing .713 g of HCL?
A -6.2 C charge enters a magnetic field which points to the north having a magnitude of 0.003 T and experiences a force of 3.2N to the east. The charge was moving perpendicular to the magnetic field
If a weak acid like HA added to water, which statement is true? Determine the concentration of OH Ion in a 8.8 x10^-3 M HCL solution.
Kathryn can paint the room in 10 hours. Zoe can paint same room in six hours. How long does it take for both Kathryn and Zoe to paint room it they are working together.
carrying a current of 10A to the east. The force acting on the wire is 0.6N to the screen. Determine the direction of the magnetic field supposing it is perpendicular to the wire?
A bullet of mass 41.0 g is shot horizontally to the stationary block of kauri of mass 2.30 kg that lies on a horizontal table with µk = 0.413. The bullet is then embedded a distance d = 6.50 c
Discuss the composition of a brass alloy if 12.15g of the alloy reacts with HCl(aq) to yield 2.305 g ofZnCl2?
The plane can fly 800 miles in same time as it takes the car to go 250 miles. If car travels 110 mph slower than the plane, determine speed of plane.
Calculate the pH of the solution at the equivalence point when a 20.00-mL sample of 0.220 M triethylamine,(CH3CH2)3N is titrated with 0.544MHCl(Kb(CH3CH2)3N= 5.2 × 10-4).
A charge of 5.3 is moving to the west having a velocity of 3 m/s. It enters a uniform magnetic field of 0.3T out of the screen. Determine the direction of the force which acts on the charge once it
Determine the numbers of moles of NaOH must be added to the buffer to increase its pH to 5.74 when a buffer composed of 0.50 mol acetic acid and 0.50 mol sodium acetate is diluted to a volume of 1.
A converging lens having f = 11.9 cm is situated 30.6 cm to the left of a diverging lens of f = -5.94 cm. A postage stamp is positioned 32.4 cm to the left of the converging lens. Determine the on t