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A fish takes the bait and pulls on the line having a force of 2.2 N. The fishing reel that rotates without friction is a cylinder of radius 0.052 m and mass 0.88 kg. (i) Determine the angular accele
At a temperature of 28.33 Celsius a sample of chromium weighing 34.5 g was initially. It needed 945 Joules of heat energy to increase the temperature to 31.75 Celsius.
Standing on a roof on July 4, you view a burst of distant fireworks. You hear the explosion 8.25 s later. Determine how far (in km) are you from the point of the explosion? Suppose that the temperat
Assume the mixture is ideal. A mixture is formed form 5 mol of liquid benzene and 5 mol of liquid tolulene at 25C and 1atm. Use Δf G (benzene, l)=90kJ/mol and Δf G(toluene)=100kJ/mol.
If capacity of radiator is 3.6L, how much coolant must be drained and replaced with water to decrease antifreeze concentration to suggested level?
Explain how would you write the balanced equation for the reaction of the acetaldehyde, CH3CHO with Toller's reagent, Ag(NH3)2+ (aq).
Assume that the G-string of a guitar is 3.6 m long and consists of a linear density of 78.9 mg/m. The thumb screw joined to the string is adjusted to give a tension of 3.5 kN. Determine the basic wa
Illustrate the lew is structure for the molecule, including all the resonance structures. The formulas for Nitryl chloride is NO2Cl. Explain the electron pair and the molecular geometries, and g
Assume that we have tube which is closed on one end and open on the other similar to what you employed in Standing Waves lab. When this tube consists of plunger at the position 147.7 cm and 11 nodes
Determine the buffer capacity of an acetate buffer with concentrations of HAc and NaAc are 0.1 m mole per liter? Explain what equation to use and how to work the problem.
Briefly explain why this is atonable assumption given the experimental conditions. An implicit assumption of the Dumas Method is that the gas in question behaves ideally.
When the elastic limit of steel is 5.0 X 10* Pa, find out the minimum diameter a steel wire can have if it is to support a 70 kg circus performer devoid of its elastic limit being exceeded.
Explain what effect does this error have on the reported value for the molar mass of the compound? Briefly explain. The barometer reading is recorded to be higher than the actual value.
The two skydivers were in free fall till they reached terminal velocity of 115 miles per hour (due to the air resistance) at 1.542 kilometers above the surface of the Earth.
Determine the base salt for ethyl p-amino benzoate and the formula for it? Calculate the reaction for ethyl p-amino benzoate with concentrated 3M HCl?
Determine the percentage of nitrogen and oxygen in the air dissolved in the water at 25 deg C. The air in equilibrium with the water at 1bar may be considered to be 20% oxygen and 80% nitrogen.
When H-I dissociates, the H atoms move away rapidly, whereas the relatively heavy I atoms move little. By using photons of specific wavelengths, chemists can dissociate gaseous H-I to produce H atom
Calculate the SI units of a time-independent wave function for a particle-in-a-one-dimensional box and a particle-in-a-three dimensional box? Ψ (wave function)
Determine equation for line tangent to function at indicated point. Confirm by drawing the graph of function showing tangent line: f(x)= x^2-4 (-4,12) .
Newton had an incorrect theory of gases in which he assumed that all gas molecules repel one another and the walls of their container.
A typical nuclear radius is around 4.0 fm. A typical energy of a neutron bound within the nuclear potential well is En = -20 Mev.
Determine the final temperature of the part to one decimal place when a 343 g aluminum engine part at an initial temperature of 23.3°C absorbs 3,635 J of heat.
A curve having radius 57.1 m is banked so that a car of mass 1.8 Mg traveling with the uniform speed 58 km/hr can round the curve with no relying on friction to keep it from slipping on the surface.
If 1.8 moles of nitrogen gas and 5.0 moles of hydrogen gas are brought together to react according to the following equation: 3 H2 + N2 -----> 2 NH3
A computer disk drive is turned on beginning from rest and consists of constant angular acceleration. It took 0.606 s for the drive to make its second complete revolution.