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A 1200 kg aircraft going 30 m/s collides with a 2000 kg aircraft that is parked and they stick together after the collision and are going 11.3 m/s after the collision. If they skid for 77.6 m before stopping, how long (in seconds) did they skid? Hint: Are the aircraft moving at a constant velocity after the collision or do they experience an acceleration?
A typical bathtub can hold 100 gallons of water. Calculate the mass of the natural gas that would need to be burned to heat the water for a tub of the is size from 65 degrees farenheight to 108 degrees farenheight. Assume that natural gas is pure m..
A 36.5 g sample of the metal is taken from a boiling water bath at 100.0°C and placed in the calorimeter. The equilibrium temperature of the water and sample is 32.5°C. The calorimeter constant is 1.87 J/°C. Calculate the specific heat of the meta..
A certain substance, intially present at 0.500 M, decomposes by second-order kinetics with a rate constant of 4.00 x 10-1 L/mol min. Calculate the time (in minutes) required for the system to reach a concentration of 0.370 M.
What gas escaped during the sodium bicarbonate washing? Write balanced equations for two reactions that took place during this operation. Experiment: Preparation of synthetic banana oil
Question- 18.7 L N2 at 25 °C and 125 kPa and 31.1 L O2 at 25 °C and 125 kPa were transferred to a tank with a volume of 4.00 L. What is the total pressure at 37 °C
Initially a mixture contains 0.601 mol each of N2 and O2 in an 7.65-L vessel. Find the composition of the mixture when equilibrium is reached at 3900°C. For the reaction below, the Kc = 0.0123 at 3900°C. N2(g) + O2(g) 2 NO(g)
The density of air at ordinary atmospheric pressure and 25°C is 1.19 g/L. What is the mass, in kilograms, of the air in a room that measures 12.5 x 15.5 x 8 ft
Draw the structure of the organic product(s) of the reaction between (R)-3-phenylbutan-2-one and ethylmagnesium bromide, followed by acidification.
Is a solution made by diluting 0.10mole of CH3COOH (Ka = 1.8 x 10-5) in 100 mL of H2O a buffer? What is the pH of a solution made by diluting 0.052 moles of NH3 (Kb = 1.8 x 10-5) in 221 mL of water?
a 3.46 liter sample of a gas was collected over water on a day when the temperature was 21 degrees celsiusand the
A student prepared a stock solution of the assigned compound by weighing 2.345 grams of Cu(NO3)2. 6H20 and diluting it with water to a final volume of 25.00mL.
A plastic cup is heated past its melting point,then remolded and cooled. Based on thisinformation, we can say this polymer
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