Whether that be reactants disappearing or products appearing; the rate of reaction is affected by the temperature. However, the chemical equation does not tell us how fast things happen, for this we use a rate equation. Yes No I need help [A] means the concentration of A, k is the rate constant and m and n are the order of the reaction.
When the satellite is outside the atmosphere there are only conservative forces gravity acting and, if the satellite is in a circular orbit, its [speed] is constant. When it starts to enter the atmosphere there is a small drag force, since the atmosphere is thin high up.
This force always opposes the motion and I would have guessed that it would slow the satellite down. Can you help me in figuring out why the satellite actually speeds up? Indeed, as long as the drag force remains small, the satellite will gain speed, because speed increases as altitude decreases.
A drag force cannot change that trend unless it's large enough. The key point is that a spacecraft loses altitude at a steady rate during reentry. It's fairly easy to work this out quantitatively: Let's call M the mass of the satellite, V its speed and z its altitude.
Therefore, the above relation translates into: For proper re-entry the angle of reentry a cannot be too small, or else the spacecraft could "bounce" off the atmosphere and be back into outer space after losing just a little bit of energy. As the atmosphere becomes denser at lower altitudes, the drag force F will eventually exceed the above threshold and the spacecraft will slow down.
What happens when the monkey decides to climb up the rope? He was a professor of mathematics at Oxford from to The above picture once illustrated a discussion of the puzzle by the mathematical columnist Sam Loydwho called the problem "Lewis Carroll's Monkey Puzzle", while stating that it was not known whether Lewis Carroll originated the question.
Unfortunately, the solution given by Loyd happens to be erroneous. Thus, if the monkey and the weight are initially motionless at the same height, they will always face each other no matter what the monkey does. For example, they will both be in free fall if the monkey lets go of the rope, and both falls stop when the monkey grabs the rope again.
The reason for this is simply that all the forces that are acting on either the monkey or the balancing weight are always equal. There are only two such forces for each body; the downward weight and the upward tension of the rope. The weights are equal because the two bodies have the same mass and the rope also exerts the same force on either body because of the numerous "ideal" assumptions made here, including the absence of swinging on the monkey's side so that the rope exerts only a vertical force in either case.
It's also essential to assume not only the lack of any friction, but also the absence of mass for both pulley and rope otherwise the rope's tension would not be the same on either side of an accelerating pulley and it would vary along the length of an accelerating rope.
Note also that a "perfect" rope retains its length and transmits instantly any change in its tension.The rate law or rate equation for a chemical reaction is an equation that links the reaction rate with the concentrations or pressures of the reactants and constant parameters (normally rate coefficients and partial reaction orders).
mathematical relationship that shows how rate of reaction depends on concentrations of reactants For a _ order rxn, a plot of ln[A] vs. time will yield a straight line with slope of . This list of eponymous laws provides links to articles on laws, principles, adages, and other succinct observations or predictions named after a torosgazete.com some cases the person named has coined the law – such as Parkinson's torosgazete.com others, the work or publications of the individual have led to the law being so named – as is the case with Moore's law.
e is NOT Just a Number. Describing e as “a constant approximately ” is like calling pi “an irrational number, approximately equal to ”. Sure, it’s true, but you completely missed the point.
This study originally arose out of an e-mail discussion with Rafael Capurro at the artefactphil discussion group in I am therefore indebted to him for important impulses.
Cf. Rafael Capurro's analogous article Beiträge zu einer digitalen Ontologie (Contribution to a Digital Ontology), from which the present study deviates considerably in both content and scope of presentation.
Thermodynamics and the Properties of Gases. Thermodynamics concerns itself with the statistical behavior of large collection of particles, a substantial quantity of matter for example.