Chemistry Quiz June 7‚ 2010 Name:_________________________________________ Score:______ 1. A sample of gas occupies a volume of 7.50 L at 0.988 atm and 28.0 °C. (a) Calculate the pressure of the gas if its volume is decreased to 4.89 L while its temperature is held constant. (b) At what temperature in degrees Celsius is the volume of the gas 4.0 L if the pressure is kept constant. 2. Calcium carbonate‚ CaCO3(s)‚ decomposes upon heating to give CaO(s) and CO2 (g). A sample of CaCO3
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Object Length (cm) Length (mm) Length (M) CD 12cm 120mm .12M Key 5.3cm 53mm .053M Spoon 15.5cm 155mm .155M Fork 19.8cm 198mm .198M Water Temperature C° Temperature F° Temperature K Hot from tap 38 C° 100.4 F° 311K Boiling 93 C° 199.4 F° 366K Boiling 5 minutes 95 C° 203.0 F° 368K Cold from tap 15 C° 59 F° 288K Ice water 1 minute 8 C° 46.4 F° 281K Ice water 5 minutes 5 C° 41.0 F° 278K Object Estimated mass (g) Actual mass (g) Actual mass (Kg) Mechanical pencil 4g 5
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Total Questions 1780 PRINCIPLES OF FLIGHT SUBSONIC AERODYNAMICS - Basics‚ laws and definitions Question The angle between the aeroplane longitudinal axis and the chord line is the: Choices A B C D Ref CPL A Question Answers angle of incidence glide path angle angle of attack climb path angle AND ATPL A Assuming ISA conditions‚ which statement with respect to the climb is correct? Choices A B C D Ref CPL A Question At constant At constant At constant At
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Before looking at river landforms it is important to understand the more general role of rivers and to develop an awareness of the processes at work within rivers. It is through this knowledge that we will better undertand the processes at work in the geomorphology of the drainage basin. The role of rivers can be understood in very simple terms. The river’s role is to balance its load and transport it to the ocean. But this this idea of rivers as merely transporting weathered material to the ocean
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to shrink leaving astronauts weaker and less coordinated. Beyond Low Earth Orbit‚ the protection of the Earth’s atmosphere and magnetosphere are no longer available (NASA). Space radiation may place the crew at significant risk for radiation sickness‚ and increased lifetime risk for cancer‚ central nervous Vaughn 2 system effects‚ and degenerative diseases. Spaceflight associated immune dysregulation persists during exploration flights in conjunction with other factors such as high energy radiation
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defense guns were emplaced in major urban areas in whatever positions they would be most effective. At the beginning of the Vietnam War there were approximately seven-hundred anti-aircraft guns positioned around North Vietnam. However‚ the high altitude threat still remained. B-52 bombers stationed in Guam could take off‚ fly to North Vietnam‚ release their munitions‚ and return to base virtually unrestricted. The North Vietnamese needed to develop their integrated air defense network‚ and assistance
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Boeing B-29 Supperfortress Though it was conceived of before World War II‚ its impact was not felt until the war was close to an end. However‚ in this short amount of time‚ you could argue it had a greater impact on the pacific theater than any other weapon. Without the capabilities of the B-29 Supperfortress there is no doubt the war in the pacific would have carried on for years past its actual end date‚ and would have resulted in the loss of countless more American lives. The effect of the
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HSC PHYSICS: SPACE * 1. “The Earth has a gravitational field that exerts a force on objects both on and around it.” Students learn to “define weight as the force on an object due to a gravitational field.” Mass is the amount of matter in a body whereas weight is the force due to gravity acting on a mass. Mass will not change where the acceleration due to gravity is different but the weight will change. For example‚ bathroom weights are calibrated in kg‚ but actually measure
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Drones’ world Hopefully‚ as technology has improved so much‚ the world has managed to obtain very useful products. One of the brilliant improvements in the robotics‚ the aeronautics and the electronics’ fields is known as a drone. It is also called an unmanned aerial vehicle. A drone is an aircraft‚ which can be controlled by pilots who are on the ground and it can be piloted by a pre-programmed mission. Its use has grown quickly due to its recent ability to stay aloft for many hours. Drones are
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Constellations -stars of a constellation may be at very different distances Ancient times constellations loose grouping of stars based on mythology Now constellations are well-defined regions on the sky. (pgs 12-13) Celestial Sphere – NCP‚ Equator‚ Altitude = to latitude (pgs 17-18) Ecliptic – remember Sun moves 1o per day and highest motion +23.5o above or -lowest‚ 23.5o below Magnitude – bigger number is fainter‚ (pgs 15-16) Factor of 2.512 for each mag‚ (unaided eye limit ~6) Seasons – tilt
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