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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?
Determine the principal quantum number of the s and p valence electrons in the following chemical elements? Enter your answer with integers separated by the commas and with no spaces, for example3,
Determine how far and in what direction does the object move in 0.200 s, supposing that it moves freely and that the drag force on it from the liquid is negligible?
Determine the numbers of grams of KCl will be required? A student needs to prepare the 181 mL of a 1.98 molar solution of the potassium chloride.
A police officer in a patrol car parked in a 70 km/h speed zone views a passing automobile traveling at a slow, constant speed.
Determine the numbers of grams does it weigh when a standard basketball with a circ of 29.5 has 9 psi of Heat 25 degree C Identify the area of the basketball first or convert psi of He to atm?
Explain in detail that why the binding energy is larger in the crystal? For example, NaCl (g) and NaCl (s) are differing in the binding energy as well as their bond length.
How will the calculated molecular weight be affected if a small amount of an unknown fails to dissolve in benzophenone? Will it be too high, too low, or un-affected? Explain in detail.
Determine the angular speed (the magnitude of angular velocity) of the bacterial motor?
How can obtain all the term symbols for the electron configuration? Calculate which of the term symbols has the lowest energy for this configuration.
By comparing this radiation to the spontaneous radiation that may persist for a long time, discuss why this spontaneous emission of radiation immediately stops.
The mass of moon is 7.4x10^22 kg and it orbits 3.8x10^8 m from the earth. Determine the angular momentum of the moon about the earth?
The top of the 100 foot vertical tower is to be anchored by cables which make the angle of 60 degrees with ground. How long much each cable be? How far from base of tower must anchors be placed?
Calculate the volume of 0.100 M MnO4- solution should be needed to titrate this solution to the endpoint? A student has 10.00 mL of a 0.500 M solution of vanadium in a250 mL flask. He believes