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The cord's un-stretched length is around 30.0 m. (i) Supposing that the bungee cord follows Hooke's law if it stretches, determine its spring constant.
Determine the numbers of grams of ammonium chloride must be added to 100.00 mL of 0.23M NH3 to prepare a pH 8.70 buffer solution?
In this equation, d(t) is distance of plane to airport (in miles), and t is time (in minutes) after plane enters holding pattern. During first 11 minutes after plane enters holding pattern, when wil
Calculate the amount of work done in the joules enough isooctane is burned with a stoichiometric amount of oxygen to form the 2.680 kJ of heat
At what rate is the gravitational potential energy lost by the water of the Niagara River? The rate of flow is around 5.5 106 kg/s.
Initially a mixture contains 0.809 mol each of N2 and O2 in an 6.33-L vessel. Discuss the composition of the mixture when the equilibrium is reached at 3900°C. For the reaction below,
The 10 capacitor initially charged to 30 is discharged via a 2.7 resistor. Determine how long does it take to decrease the capacitor's charge to 1.0?
Determine the numbers of milliliters of 2.5 M NaHCO3 must be poured on the spill to react totally with sulfuric acid? An auto technician spills 85 mL of 2.6 MH2SO4 so
Without computations, which vehicle undergoes a greater change in velocity throughout the collision? Determine how do you know?
Determine the number of moles of gas present. A sample of nitrogen gas kept in a container of volume 2.0 L and at a temperature of 55°C exerts a pressure of 4.7 atm.
When the Merry-go-round is spinning at 0.2 revolutions per second before the child jumps onto its rim, determine the final angular speed of the merry-go-round and child?
The reaction caused the temperature of the water to rise from 21.0to 24.70 C. What is the enthalpy of this reaction? A total of 2.00 mol of a compound is allowed to react in a foam coffee cup t
At local swimming hole, a favorite trick is to run horizontally off a cliff which is 6.5 m above the water. One diver runs off the edge of the cliff, tucks to the "ball," and rotates on the way down
Consider a process in which an ideal gas changes from state 1 to state 2 in such a way that its temp changes from 300K to 200K.
What can be said about the surroundings after the process is reversed? Assume a reversible process is reversed, restoring the system to its original state.
A gun of 1200 Kg mounted on wheels shoots an 8.00 Kg projectile having a muzzle velocity of 600 m/s at an angle of 30.0 degrees above the horizontal. Determine the horizontal recoil speed of the gun
Illustrate the two chair structures of 1,1,2-trimethylcyclohexane. Then calculate the approximate percentage of each isomer that would be present. Make sure to include all the possible energy.
Remember that the radius of a sphere is equal to half its diameter! How does your calculated density (in grams per cubic centimeter) compare to the density of water? Would you expect this asteroid t
Determine the specific heat of the sample when 13 grams of a sample cools from 56 C to 34.4C it loses 25.8Joules of heat.
A small piece of zinc reacts with dilute HCl to form H2, at 16 degree C which is collected over the water into a large flask. The oral pressure is adjusted to barometic pressure, and the volume is 1
Determine the greatest acceleration of the mass and when does it take?
Determine the tension in the wire if the temperature drops by 11.0°C? (The coefficient of expansion of copper is 1.7 x 10-5 (°C)-1. Utilize 11 x 1010 Pa as the Young's modulus for copper.)
The farmer with 1,000 meters of fencing wishes to enclose the rectangular plot which borders on the straight highway. If farmer doesn't fence side along highway, find largest area which can be encl
In the boiling water to 98.3ºC a piece of chromium metal with a mass of 24.26g is heated and then dropped into a coffee cup calorimeter which is having the 82.3 g of water 23.3ºC.
A piece of copper which is having 192 g is heated to 100º C in a boiling water bath and then dropped into a beaker which is having 751 g of water have density= 1.00g/cm^3 at 4.0ºC.