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An automobile with a total mass of 1500 kg is placed on a moving flatbed railcar. (There are no additional horizontal forces acting on the system) The flatbed is 1.20 m above the ground. The railcar is moving eastward at a constant speed of 8.2 m/s and has a mass of 38000 kg. The car accelerates westward and when it leaves the flatcar it is traveling at 23.0 m/s relative to the ground.
(a) What is the speed of the railcar when the car leaves?
(b) What is the distance between the car and the west end of the flatcar, when the car touches the ground?
What would happen if electric power were transmitted from the generating plant to your home at 120 V? Why can birds perch on high-voltage power lines and not get hurt?
how does a large electronegativity difference affect molecular properties?1. it makes the bonds stronger and shorter
a 25.00 ml sample of 0.100 m ch3co2h is titrated with 0.100 m naoh. what is the ph of the solution at the points where
This is vital to Jack Daniels- The vapor pressure of ethanol is 115 mmHg at 34.9 degrees C. By means of the fact that: DELTA Hvap of ethanol is 40.5 kJ/mol compute the temperature in Celsius when the vapor pressure of ethanol is 700 mmHg.
Consider the following reaction between aqueous mercury ions and a complexing agent "RWW" also known as a chelating agent.Hg^2+ (aq) + 2RWW (aq) Hg(RWW)2^2+ (aq) Kf=7.91E10
After 273 m3 of ethylene oxide at 748 kPa and 525 K is cooled to 293 K, it is allowed to expand to 1.10 × 103 m3. What is the new pressure?
A solution contains a mixture of 0.25 M Ni2+ and 0.25 M Cu2+. Na2CO3 is slowly added to the solution in order to separate the ions by selective precipitation. What is the [Cu2+] when NiCO3 begins to precipitate
Assume a gasoline is isooctane, which has a density of 0.692 g/mL. What is the mass of 2.5 gal of the gasoline (1 gal = 3.78 L)? Answer in units of kg.
A sample of gas weighs 4.542g and has a volume of 870.0mL at 945.0 torr and 39.0 degrees Celsius. What is the molar mass
If an automobile is able to travel 246 on 10.6 of gasoline, what is the gas mileage in ?
Question- In conducting a titration of 75.00 mL of certain triprotic acid with 0.0800 M NaOH, the following information was recorded: 1) The first equivalence point was observed at pH 4.94 after the addition of 12.40 mL of NaOH.
The period 6 transition metals have greater densities than either the period 4 or 5 transition metals. An explanation concerns the 4f orbitals
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