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A girl of 28 kg is bouncing on the trampoline. Throughout a certain interval after leaving the surface of the trampoline, her kinetic energy reduces to 220 J from 450 J. Determine how high does she
Discuss how much boiling water you would require in the order to raise the bath to body temperature suppose there is no heat is transferred to the surrounding environment.
At what pressure at 25 d C would these two forms of CaCO3 be in equilibrium? At 25 deg C the change in Gibbs energy for the conversion of aragonite to calcite is -1046J/mol. The density of aragonit
i) Determine how much work is done on the ball by its weight? Determine the gravitational potential energy of the basket-ball, relative to the ground, if it is (ii) released and (iii) caught? (iv) D
Discuss how would you show presence of chloride and carbonate in this mixture, assume you had a mixture of solid Na2CO3 and NaCl. Assume you had a mixture of solid Na2CO3 and NaCl. Could you
She utilize the protractor to measure the angle of 38 degrees from level ground to kite string. If she utilized the full 100 yard spool of string, how high, in feet, was kite?
Calculate the mass of sodium acetate must be added to one liter of 0.125 M acetic acid to form a buffer with pH=4.75. Suppose the volume change due to the addition of solid sodium acetate is neglig
Juggles increases to a height of 3.3 m above the ground, at which point he has the similar amount of gravitational potential energy as Bangles had before he jumped, supposing both potential energies
Determine the activation energy, Ea, from this data when heated, cyclopropane is converted to propane. Rate constants for this reaction at 470 degrees Celsius and 510 degrees Celsius are k1
Suppose charge builds up on the cloud and on the ground till a uniform electric field of 2.0 x 106 N/C all through the space between them makes the air break down and conduct electricity as a lightni
Demonstrate the monohalogenated alkenes produced when the trans-1-chloro-4-iodocyclohexane is reacted with 1equivalent of sodium tert-butyl oxide (NaOC(CH3)3).
Describe the total number of lone pairs in the NCl3. Could you please show me how this is arranged in the Lewis Structure.
An adult of 86.0 kg employs a spiral staircase to climb to the second floor of his house, his gravitational potential energy rises by 1.70 x 103 Joules. Determine by how much does the potential ener
Describe the work for the compression of CO2 gas from 3.0 to 1.5 liters against a pressure of 2.0 atm at constant temperature.
The decomposition of N2O5 in CCl4 is a first-order reaction. Describe the value of the rate constant, k if 2.56 mg of N2O5 is present initially, and 2.50 mg is present after 4.26 min at 55degrees
The element tungsten freezes at 3422 degrees C, and its molar enthalpy of fusion is ΔH fus=35.2 kJ/mol Discuss when the molten tungsten solidifies to the tungsten at its normal melting point, is
Consider the Earth and a cloud layer of 900 m above the planet to be the plates of a parallel-plate capacitor.
Determine the de Broglie wavelength of one of these alpha particles. Alpha particles emitted from the radioactive radium have energy of 4.8 MeV.
Discuss at what radius in the Angstroms does the probability of finding an electron at a point in the ground state H atom fall to 80 per cent of its maximum value?
To that mixture, suppose you add AgNO3(s) and mix well. Calculate what changes would take place. Suppose that you began with an aqueous solution of CoCl2.6H2O, to which you add 12 M HCl until the so
Discuss what effect does an increasing concentration of Na2O have on the flow properties of a silica-based glass? When a glass modifier like Na2O is added to SiO2, does the oxygen: silicon ratio inc
The plane is headed due south with the air speed of 192 mph. The wind from the direction of 78.0 degrees is blowing at 23 mph. Determine groundspeed and resulting bearing of plane.
A skier slides horizontally all along the snow for a distance of 13.0 m before coming to rest. The coefficient of kinetic friction among the skier and the snow is 0.0575. Primarily, how fast was th
Describe the numbers of grams of hydrogen gas are produced? Calculate the value of ΔH for the reverse of the previous reaction?
The potential difference among the accelerating plates of a TV set is around 20 kV. When the distance between the plates is 1.9 cm, determine the magnitude of the uniform electric field in the regi