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The horizontal distance of point X from the base of cliff (directly below the point of release) is 30 times the radius of the circle on which the stone is whirled. Find out the angular speed of the
Determine the numbers of energy is contained in one mole of photons (electromagnetic quanta) of frequency 6.3E+16 Hz?
Determine the maximum value possible for the magnetic quantum number if n, the principal quantum number, has a value of 4.
An hour later temperature of the potato is 160°C. Under (unreasonable) supposition that potato's temperature is always uniform, how long it took potato to reach 50°C.
How do you determine the number of moles of NaOH present and the number of moles of HCl when 2.00 grams of solid NaOH are reacted with the 55 mL of 1.0 M HCl.
The length of each and every rod is 0.70 m, and the angular speed is 4.6 rad/s. Determine the kinetic energies of rod A with its joined particle and of rod B.
Illustrate the skeletal structure of the compound with molecular formula C3H4Cl4 whose proton NMR spectrum contains a downfield triplet and an up field triplet with relative integration of 2:2.
Planet X consists of five times the diameter and six times the mass of the earth. Determine the ratio gx:ge of the gravitational acceleration at the surface of Planet X to the gravitational accelera
Liquids A which is having the molar mass 100g/mol and B which is having the molar mass 110g/mol form an ideal solution. A has a vapor pressure of 96mmHg and B a vapor pressure of 42 mmHg at 55oC.
A square current-carrying loop is positioned in a uniform magnetic field B, having the plane of the loop perpendicular to the direction of the field. The dashed line is the axis of rotation. The mag
In resulting photograph, spokes of bicycle were blurred through the angle of about 5°. How fast was bicycle travelling?
A sample which is having 5.0 g of Cu(NO3)2 * nH2O is heated and 3.9 g of the anhydrous salt remains. Describe the value of n?
If 29.98 mL of sodium hydroxide was used to reach the end point*, calculate the molarity M of the sodium hydroxide solution? 0.150 grams of Potassium Hydrogen Phthalate (KHP), MW=204.2, was titrate
The coefficient of static friction among the ladder and the ground is 0.36. When your mass is four times that of the ladder, determine how high can you climb before the ladder starts to slip?
Determine the osmotic pressure of a solution prepared by mixing the equal volumes of these two solutions at the same temperature? Two aqueous urea solutions have osmotic pressures of 2.4 atm and 4.
A mass of 1 kg is situated on the x-axis 1m to the left of the origin. A mass of 3 kg is 2m to the right of the origin. A mass of 2 kg is 3m above the origin on the y axis. Determine the center of m
At a certain temperature and pressure, 1.2 L of N2 reacts with the 3.6 L of H2. If all the N2 and H2 is consumed, explain the volume of NH3, at the same temperature and pressure will be formed?
(i) Determine the constant angular acceleration? (Point out direction by the sign of the angular acceleration.)
At -10.3°C 26.40 g of ice is placed in the 37.37 g of water at 95.1°C in a perfectly insulated vessel. Suppose that the molar heat capacities for H2O(s) and H2O(l) are 37.5 J/K/mol and 75.3J
Find the angular speed of the wheel. (Suppose that there is no slipping of the surfaces in contact throughout the rolling motion.)
Use the following reaction for the decomposition of magnetite (a mineral) to answer the following questions. MgCO3(s) → MgO(s) + CO2(g) ΔHrxn = 117.3 kJ
Assume that the electric potential energy lost through the system is carried off by a photon which is emitted throughout the process. Determine its wavelength?
Calculate the partition coefficient of benzoic acid in the water and methylene chloride? Is it constant value? If not what are the variables?
A block of 1.10 kg is joined to a spring having spring constant 17 N/m. While the block is sitting at rest, a student strikes it with a hammer and almost instantaneously gives it a speed of 46 cm/s
Explain how would you determine the number of moles of "M" (an unknown metal) from this equation if 9.250 x 10-4 mol ofH2 was formed and 0.0165g of the metal reacted?