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Question: Given that the density of nitrogen at one atmosphere of pressure and 0 ?C is 1.2506kgm-3 and that of oxygen at the same temperature and pressure is 1.429kgm-3, calculate the relative volumes of the two gases that combine to form the compounds named above. If you do this problem correctly, you will discover what Gay-Lussac discovered. These results are shown in Table.
The mass of cyclist together with the bike is 90 kg. Calculate the increase in kinetic energy if the speed increases" from 6"0 km/h to 12 km/h.
consider a .10kg block being pushed horizontally along a tablewith a force of .10N so that the block moves 2.0m at a constantspeed in the same direction it is pushed. How much work is done by the pushing force
A rail car that weighs 44 N is accelerated at 6.4 m/s/s for 2.9 seconds. How much work is done on the rail car
A small sphere (emissivity = .9, radius = r1) is located at the center of a spherical asbestos shell (thickness = 1cm, outer radius = r2). The thickness of the shell is small compared to the inner and outer radii of the shell.
Two tugboats pull a disabled supertanker. Each tug exerts aconstant force of 1.7×106 N, one at an angle 18.0^\circ west of north, What is the total work done by the twotugboats on the supertanker
You are driving down a straight road at speed of 90 km/h and see another car approaching you at speed of 110 km/h along the road, how fast is the other car approaching you
A sledge loaded with bricks has a total mass of 18.1 kilogram and is pulled at constant speed by a rope inclined at 20.3 degree above the horizontal. Find how much work is done by the rope on the sledge
A gymnast falls from the high bar and lands on a 10 cm thick gymnastics mat. Estimate the peak acceleration of the gymnast's head
A person travels in a car with a speed of 90 m/s. To get the driver's attention, a stationary police officer behind the car shines his spotlight at the car. If the officer is 410 m behind the car when he turns on his spotlight, how long does it take ..
A sample of 10.0 mCi decays 1.2% in a single day. What is the activity after 30 days?
A ball is thrown vertically upward with a speed of +16.0 m/s. How high does it rise? How long does it take to reach its highest point?
A mirror creates an image of magnification ?1/3. (a) Is the image upright or inverted? (b) If the object is 7.75 cm tall, what is the height of the image
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