uses more energy. Answer: There is no definitive answer to this question because beef is not a homogenous substance like iron or water or salt or oxygen or whatever. Question: I'm sorry to bother you but this is something that has been bothering me for a while and I'd really appreciate your help. But the gravitational force between two laboratory-sized masses, say a couple hundred kilograms, is very difficult because gravity is nature's weakest force. Is that even possible? Thompson were able to measure the ratio of the charge to the mass, but to get either you had to measure one independently which is what Millikan's experient did. Answer: What you describe will double the mass of the earth. ( I have conducted an experiment exactly like the example above, and I see that the more mass we put on the cart, the longer time we will get) answer: Simple physics would say that there should be no difference if there were no friction. Question: Please can you explain what happens to the energy released by the shattering of a glass on a hard surface?
Before the collision, E 1 mv 12 and after the collision, E 2(2 mv 22). The electron's charge being negative is a arbitrary; it simply must be opposite that of the proton. Is the aluminum not as hot as the oven? Answer: Imagine that you are in empty space where angular momentum must be conserved.
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The reason the air thins out at higher altitude is as follows. There is no reference in my remarks above about how you get from 1 to 2, so your expectation that the temperature change depends on how rapidly your compress the gas is not right; when you go slowly you give the molecules many little kicks. If electrons and protons were not of identical charge, the universe would be a very different place since atoms would not be electrically neutral. A megarad would be 106 rad. Question: my question concerns the hypothesized constant expansion of the universe. Now, presumably the volume of the gas in the tire decreases a little bit; therefore, the pressure must increase a little bit to keep the product PV equal to the constant NRT. More exactly, in being a finite speed, is there anything particular about a photon that makes it travel at this speed in a vacuum, and not another speed, faster or slower? Question: Light, radio signals, and audio are all types of waves which can be measured in Hertz. Answer: The component of the ruler along the direction of motion is shortened from ( l 0/ 2) what is a lead statement in an essay to ( l 0/ 2)1-( v 2/ c 2) while the component perpendicular remains ( l 0/ 2). I would recommend that you focus your project on something like the empirical observation that the force of friction when something slides is proportional to the normal force (the force a horizontal surface exerts upward on the sliding object).