devrimci_kürt

Senior Members

180

1. a basketball ball

A Basketball ball is dropped onto the floor.What force causes the ball to bounce?
2. Speed of the earth's rotation

If all the people in the world started running to the East side of the Earth; would the Earth's rotational speed change? ?
3. Moment and Torque

What is the difference between Moment and Torque ?
4. sicar

what does sicar mean? sicar=half tuition scholarship is it true?
5. rigid and solid

elasticmodulus = stress/strain is it true?
6. A and B barrels

Two similiar barrels A and B with the same radius and mass roll down the same slope starting at the same instant.Barrel A is filled with liqued water, and barrel B is filled with ice of equal mass(Barrel B slightly longer than barrel A to compensate for the slightly larger density of liquid water) which barrel reaches the bottom of the slope first? and why?
7. rigid and solid

what is the difference between solid and rigid (in physics) for example, a rigid object ..a solid object
8. rain

I know its a dumb question but I wonder.. Which keeps you drier , walking or running in the rain? in other words, do you get wetter if you run or walk in the rain? .(the distance stable) and why?
9. String theory

why not dot or comma why not circle et cetera.. why string?
10. The Physical Basis of the Direction of Time

well, What does - t stand for in physics ? -t , travel back in time ?
11. The Physical Basis of the Direction of Time

we go any further, it's important to get a clear idea of what time reversal symmetry really means. At the simplest level, we may think of the laws of physics as equations involving a time variable , and say that they are symmetric under time reversal if given any solution, and making the substitution , we obtain another solution. http://math.ucr.edu/home/baez/time/time.html What does t (and - t) stand for in physics ? only time ?
12. Novikov self-consistency principle

I understand, that is, this principle says that if an event exists that could give rise to a paradox, then the probability of that event happening is zero.. Is it logic ?
13. Novikov self-consistency principle

what is Novikov self-consistency principle?
14. yang-mills

what does Yang-Mills field(and Yang-Mills particle ) mean? and also, what does Its Renormalization mean?
15. vectors

why different nouns?
16. vectors

what is difference?
17. vectors

dot products, scalar products and inner products... are they same thing?
18. Cultural Events

Poem club Environmentalism( like greenpeace)
19. A truck driver and chickens

let's say , a fly bird
20. A truck driver and chickens

Does it make any difference if the truck is open or closed? I think , they are different..open truck is light.. right?
21. A truck driver and chickens

A truck driver carrying chickens to market is stopped at a weighing station.He bangs on the ide of the truck to frighten the chickens so that they will fly up and make the truck lighter.Will his scheme work?Does it make any difference if the truck is open or closed?
22. The gravitational and the electromagnetic forces

now I understand
23. energy dissipative

0.080 kg soccer ball is released from rest at a height of 1.24 m above the floor and after one bounce reaches a maximum height of 0.70 m. determine the amount of energy dissipated? commentary:my questions are not homework..because, I am not a student:)
24. The gravitational and the electromagnetic forces

The gravitational and the electromagnetic forces are inverse-square forces.. but, why?
25. conspiracy theory

some researches say ;conspiracy theory adherents claim that a small group of international elites(a.k.a Secret societies) controls and manipulates states , economy and media organizations worldwide. what do you think? Thanks in advance.
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