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The position of the projectile fired with the initial velocity vo feet per second and at the angle alpha to horizontal. Get the rectangular equation of trajectory an identify curve.
At the local swimming hole, a preferred trick is to run horizontally off a cliff which is 8.3 m above the water. One diver runs off the edge of the cliff, tucks to a "ball”, and rotates on the
The slow step in the conversion of alchohol to alkyl halide is the loss of water from the protonated alcohol to form the carbocation intermediate.
The surface on which the object moves is frictionless and the spring is in its elastic regime. Determine the mass of the object when it oscillates having a frequency f = 2.90 Hz if it is released?
Determine the numbers of grams of each product are produced if 200.g of Fe, 300.g sulfuric acid, and 700.g of potassium chlorate are reacted? Determine the numbers of grams of each reactant remain?
A force of 15.3 N lies in this plane and is exerted to the square. Determine the magnitude of the maximum torque which such a force could generate?
Determine the ratio of J=1 to J=0 rotational energy level populations at the 200 K and 600 K for N_2, the rotational constant B = 5.96*10^10 s^-1.Calculate the limiting value of this ratio as T app
What is the temperature of the sample if B = 1.9227 cm^-1 for CO? In a rotational spectrum of CO, the maximum-intensity line is associated with the J=8.
The vibration of tympanic membrane in the human ear (eardrum) can be explained as a harmonic motion. Supposing a mass of 20.6 mg and a period of vibration of 1.72 ms, determine the natural vibration
Suppose the diameter of a hydrogen atom to be 100 pm. Interstellar space has an average temperature of about 10 K and an average density of hydrogen atoms of about one hydrogen atom per cubic meter.
At time t = 0 the object is pulled to a distance of 28.1 cm from its equilibrium position (which you might select conveniently at x = 0). The surface on which the object moves is frictionless.
Determine the pressure at which the mean free path of a hydrogen molecule well be 1.0 mm, 100 mm, and 1.00 m at 20 C.
Compute the overlap of two s atomic orbital, an s and an atomic orbital, and two p atomic orbital. Construct sketches of the newly produced molecular bonding and the anti-bonding orbital.
A 2.38 g sample of the compound at 41.1 °C exerts a pressure of 655 torr in a 0.569 L container. Analysis of a compound containing only phosphorus and fluorine was found to be 24.1% by mass phos
Determine the radius of the ball by assuming the Stake's Law and using that the viscosity (n) = 0.891 x10-3 kg m-1 s-1 @ 298 K.
Sketch a Born-Haber cycle and then summarize it by writing what ΔH of dissolution is equal to and how is the heat of dissolution of the salt NH4Cl(s) related to the lattice energy of N
Cl2FCCF2Cl(Freon 113, containing a C-C bond) Chloro-fluro-carbons (CFCs) are linked to the depletion of stratospheric ozone. They are also greenhouse gases.
Dichlorine oxide (Cl2O) is used in the manufacture of bleaching agents. Chlorine combines with oxygen in several proportions. Potassium chlorate (KClO3) is used in oxygen generators aboard aircraft.
Pyrazine (C4H4N2) and pyridine (C5H5N) have structures similar to benzene. Both compounds have structures with 6 atoms in a ring. Illustrate the Lewis structures for pyrazine and pyridine showing a
Which investment is more attractive, 5 and 1/8% (mixed fraction) compounded annually or 5% compounded continuously?
Provide a short justification for your answer and show all calculations? Joe Cool phase titrated a 25 mL solution containing an unknown concentration of weak base with 0.10 M HCl strong acid and for
The building is prepared with the ramp to make it wheelchair accessible. If ramp is inclined 6degrees with ground and requires to rise 3ft, how long ramp needs to be?
Calculate the energy required to raise the temperature of 250.0g of zinc from the 24.0 degrees C to 150 degrees C. where the specific heat of Zn=0.402J/g C.
determine how long does it take to fully unwind the hose from the reel? Avoid the mass of the hose, and suppose which the hose unwinds devoid of slipping.
What mass of O2 will dissolve in a 1.0x10 to the third power Liter fish tank at the 20*C if the Henery's law constant for O2 in water at 20*C is 1.3x10 to the negative third power mol/L.atm?