Is it really true that the Big Bang theory completely refutes God, and the theory of evolution as well? If so, who or what triggered the Big Bang, and how did the universe become what it is today? It can't be pure chance, can it? Can one completely rule out a creator?
“Name the regularities found in the electronegativity values in the PSE” Where can I find this? Please help me
I'll keep it short, I have to calculate an equation with explanation on the board on Friday, and I wanted to ask if anyone of you could calculate one for me like eg Y = 6x -2 with explanation (calculation method)
In chemistry class at school, we were given a question: If you put a candle under a balloon, it will burst but not explode. I found this question very confusing. Can someone explain why this is the case?
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because the beginning and end point of the movement are identical.
Once positive (from the starting point to the turning point) and once negative work (from the turning point to the end point) is performed, which are mutually cancelled and result 0.
If you only look at the first part, it is mechanical work that is done. The potential energy of weight is raised. In the second part, the weight itself does work and loses its potential energy.
The total is zero.
” Physically, work is stored in the form of energy and energy is released again in the form of work. For example, when lifting up a body, the work done is stored as potential energy in the body. When falling down, he releases this energy again and can do work.”
https://www.google.com/search?channel=fs&client=ubuntu&q=Work+ and+Energy
Where did you get the acceptance?
Clearly work is done.
Work = Force * Way
Or: work = performance * time (no muscles have a certain lifting capacity. Depending on the height and weight of the weight, it goes fast or slow.)
Or: Work = Energy Difference (You give potential energy when lifting)
(The argument that the weight after lowering is again where it was before lifting does not count: if you drive by car from A to B, the tank will not be filled again if you return to A:))
You also notice this: this is associated with effort. You’re sweating. :
If your assumption were correct, you would have invented the long-awaited perpedum mobile:D.
you can either physically explain how ant8eart, or economically: for weightlifting, go to the fitness center and have to pay membership fee, you get no money for it – that can be no work, that must be pleasure.
You also pay for money for railing…
yes, this is for masochists
Best answer XD.
When lifting the weights, mechanical work is done according to the equation work = mass times 9.81 times height.
The stable holding of the weight in height may strain the athlete and bring blood pressure and circulation to wear. But where nothing is raised, no work is done.
This assertion is not true.
It goes without saying that work is being done, namely lifting work. This lifting work increases the potential energy of the weight. The weight lifter then drops the weight and epot is converted into Ekin. When the weight strikes the ground, Ekin is converted into sound and deformation work that increases the internal energy of the weight and the environment.