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Angles of elevation to the airplane from two points A and B on level ground and 51 degrees and 68 degrees, respectively. Points A and B are 2.5 miles apart, and airplane is east of both points in s
A syringe consists of an area of 1.0 cm^2 in the barrel and then narrows down to an area of 0.10 mm^2. At the end of needle, when a force of 5.0 N is exerted to the syringe, determine the force gene
Adiabatic expansion against zero external pressure. Determine the final temperature in two ways: (a) assuming argon is an ideal gas, (b)assuming argon is a van der Waals gas.
The mass of the rod might be avoided, compared to the mass of an object fixed to the top of the rod. The rod, beginning from rest, tips over and rotates downward. (i) Determine the angular speed of
The complete combustion of 1.608g of cymene in a bomb calorimeter formed an increase in temperature of 19.35 degrees Celsius. The aromatic hydrocarbon cymene (C10H14) is found in nearly 100 species
The parallel plate capacitor consists of 2*10^-4 m^2 plates which are separated by 5.00*10^-3 m with nothing between them.
Determine the numbers of moles of CO2 is formed when 1 Kg of CaCO3 is used to neutralize acid spill. Equation for reaction at 1atm and 25 degrees Celsius is:
Determine the theoretical yield of lithium nitride in grams when12.3 g of lithium is heated with 33.6 g of nitrogen? If actual yield of lithium nitride is 5.89 g, what is % yield of reaction?
The flute consists of length of 58.0 cm when the speed of sound in air is 343. Determine the fundamental frequency of the flute, supposing that it is a tube closed at one end and open at the other?
Determine the following quantity: Volume of 2.01M calcium chloride that must be diluted with water to prepare 335 mL of a 3.26 X 10^-2M chloride ion solution.
Jim's dog Sparky runs 50.0 m northeast to a tree and then 70.0 m west to the second tree, and lastly 20.0 m south to a third tree. i) Compute Sparky's total displacement vector.
Determine the numbers of mL does a 120 pound adult require to take? A prescription calls for 350 mg/kg of body weight if the density of the medicine is 4.8 g/cm^3
One diver runs off the edge of the cliff, tucks to a "ball", and rotates on the way down with the average angular speed of 1.0 rev/s. Avoid air resistance and find out the number of revolutions she
The person walks part of way at 5 miles per hour, then jogs rest of way at 9 mph. Determine the formula which expresses total amount of time for trip, T, as the function of d, distance walked.
Explain what two side reactions are possible in addition to the major product of cis-norbornen-5,6-endo-dicarboxylic anhydride, in the Diels-alder reaction of cyclopentadiene and maleicanhydride.
Hearing the siren of the approaching truck, you pull over to the side of the road and stop. As the truck approaches you hear a tone of 460 Hz; as the truck moves away, you hear a tone of 410 Hz. Det
Explain why do carboxylic acids generally have higher boiling and melting points than alcohols, ketones, and aldehydes of comparable mass?
Calculate the theoretical yield of 2-chloro2-methylbutane from reacting 10.0 mL of 2-methyl-2-butanol and 25 mL of 12 M HCl.
A bridge is around 3910m long and is constructed of steel. Determine how much longer is the bridge on a warm summer day (30.0 degrees C) than on the cold winter day (-5.0 degrees C)?
An acetic acid buffer which is having .50 M CH3COOH and .50M CH3COONa has a pH of 4.74. Discuss what will the pH be after 0.0020 mol of HCl has been added to 100.0 mL of the buffer?
A spring is suspend from the ceiling. A 0.461 kg block is then joined to the free end of the spring. If free from rest, the block falls 0.153 m before momentarily coming to rest. (i) Determine the s
Decay of Iodine, How long will it take quantity of iodine 131 to decay to 25% of initial amount, suppose that it decays according to function stated by A(t)=A0e-.087t , where t is time in days?
At 34 degrees Celsius exactly 18.4 mL of water are added to a hot iron skillet. All of the water is converted into the steam at 100 degrees Celsius.
150.0 grams of AsF3 was reacted with the 180.0g of CCl4 to form AsCl3 and CCl2F2. The theoretical yield of CCl2F2 formed, in moles should be what?
Approximating the man through a vertical cylinder of radius Rm = 0.205 m, find out an equation (specific expression) for the angular velocity of the platform as a function of time. Determine the ang