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Throughout the motion a safety clamp exerted a constant force 17000n frictional force to the elevator. Determine the constant force of the spring must be.
Under the identical conditions, this pinhole will allow the 0.017 moles of argon gas to effuse every hour. Explain how long should you let the oxygen escape from the pinhole in order to reduce the p
The molar enthalpy change of vaporizing ethanol is 38.6 kJ/mol at the boiling point (78.4 °C); likewise, at-33.34 °C it takes 23.35 kJ/mol for ammonia to boil.
Describe the sub shell corresponding to the following sets of quantum numbers? An example of a sub shell is 2s.
In a RLC circuit, a second capacitor is joined in series with the capacitor before in the circuit. Determine the effect of this change on the impedance of the circuit?
The concentration of hydrogen peroxide in a solution is determined by titrating a 10.0 mL sample of the solution with permanganate ion under the acidic conditions, forming the manganese (II) ion and
Then the force (in Newton) applied by the expanding gas on the bullet is 15000 + 10000x – 25000 x2, where x is in meters. (i) Find out the work done by the gas on the bullet as the bullet travel
A mixture of butane and ammonium nitrate are placed into a steel cylinder and detonated. The product gases (CO2,H2O, N2) reach a temperature of 725oC. Determine the average kinetic energy per molecule
For the person at rest, velocity v (in liters per second) of airflow during the respiratory cycle. Determine time for one full respiratory cycle. B) Compute number of cycles per minute.
Determine the numbers of grams of each of the following substances will dissolve in 100 ml of cold water? Consult your hand book. Ce(IO3)4, RaSO4, PB(NO3)2, (NH4)2SeO4.
You encompass three mass arranged: M1 is 2kg at (-4m, 0), M2 is 2.5kg at (0, 2m) and M3 is 1.5kg at (4m,-2m). Where is the center of mass of the system? (Determine both the xCM and yCM.)
Explain how rapidly would the following particle be moving if it had the same wavelength as a photon of green light (λ = 500.0nm)? where an electron of mass 9.10939 x 10-28 g
The mass of Li2O produced when the 2.00 g of lithium reacts with the 2.00 g of oxygen is 3.02 g. Determine the percent yield? Where atomic weights: Li = 6.94, O = 16.00. 4Li + O2 --> 2Li2O
Determine the velocities of each of the masses after the band breaks. (Make a draw and point out the directions in terms of your coordinate system.)
Theoretically determine the numbers of moles of water should be formed if 0.3818 moles of C3H8 and 1.718 moles of O2 are allowed to react, and this is the only reaction which occurs.
Suppose that the star is a uniform sphere at all times (i) Suppose that the thrown-off mass carries off no angular momentum,
Graph f(x)= 3x^2+9x+2 to find out whether graph opens up or down? Determining the vertex, axis of symmetry, x and y intercepts, domain, range and whether function is rising or reducing?
Explain how IR, NMR, and the Mass Spec can be used to differentiate among the starting material and the product. Discuss which peaks would indicate the presence of the starting material, and which
At1100K a 1.00 L vessel initially contains 0.777 moles of SO3. Determine the Kc for the following reaction, if 0.520 moles of SO3remain at equilibrium?
If it required 27.92 mL of NaOH to reach the equivalence point, explain what was the concentration of the acetic acid solution? 20.00 mL of an acetic acid, CH3COOH solution of unknown concentration
A vat contains 2.93 M sulfuric acid solution. Determine the number of kg of KOH will be need to react totally with neutralize 864 L of the solution?
How much more acidic is water with pH 8.1 compared to water atp H 8.2? Discuss why a change in pH of the ocean water is likely to affect the many biochemical reactions taking place in the ocean wat
Determine the mass of iron would be needed to cover a football playing surface of 120 y ds x 60. Yds to a depth of 1.0 mm when the iron has a density of 7.87 g/cm3.
Resulting motion of weight is described by function y=(1/2)e^(-t/4)cos(4t), t > 0 where y is distance (in feet) and t is time (in seconds). Determine displacement when: a) t= 0 secs b) t= 3 secs
Naturally occurring silver consist of only two isotopes. 107Ag (atomic mass=106.91amu, abundance=48.16%) and the 109 Ag. Determine the percentage abundance of 109 Ag and calculate