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Re: The Educative Game by biolabee(m): 9:58pm On Nov 16, 2008 |
apocalypse: i go with the apocalypse on this, spikedcylinder: spiked, the q is not complete,,,, there are 11 numbers if the numbers are paired up there will be one more number. morenike im fine tx |
Re: The Educative Game by spikedcylinder: 11:32am On Nov 17, 2008 |
An elf wrote the numbers 5 through 15 in a straight line. On adding any two numbers next to each other, the elf found the sum to be an odd number. That was the question Correct. And that was the answer. What part did you not get biolabee? |
Re: The Educative Game by Nobody: 11:49am On Nov 17, 2008 |
@spike There was this thread I made a few remarks which were , to say the least , derogatory but am happy you have taken it in good stride. can you believe that I was actually waiting for your location to load. |
Re: The Educative Game by victor1(m): 9:40pm On Nov 17, 2008 |
Barrier constructed across a stream or river to hold water and raise its level is called? a. Bridge b. Lighthouse c. Dam d. Levee Please does a bridge hold water and raise its level? |
Re: The Educative Game by victor1(m): 9:42pm On Nov 17, 2008 |
The second question asked. the answer should be a dam. |
Re: The Educative Game by RichyBlacK(m): 11:18pm On Nov 17, 2008 |
If f(0) = -1 and f(1) = 2, what is f(x)? A. 2x B. 2x - 1 C. (1/2)*2x D. 3x - 1 E. -2x |
Re: The Educative Game by DarkRxn(f): 12:08am On Nov 18, 2008 |
D. . . .right? |
Re: The Educative Game by RichyBlacK(m): 12:22am On Nov 18, 2008 |
Dark_Rxn: Correct! |
Re: The Educative Game by RichyBlacK(m): 12:35am On Nov 18, 2008 |
Let, I = increase D = decrease C = remain constant. So, x=I,D,C means x increases, then remains constant and finally decreases. Einstein's theory of relativity tells us that nothing can travel faster than the speed of light. From Newton's laws of motion, we know that applying a force F to a body of mass m will increase the acceleration a of the body. Imagine a situation where we apply a sustained amount of force on a given body. Question 1: Using the IDC notation given above, explain the effect of this sustained application of force on the body's mass m and acceleration a, given that the body is initially at rest. Example solutions: i. m=C and a=D implies that mass remains constant and acceleration decreases ii. m=D,I,C and a=I,C implies that mass decreases, then increases and finally remains constant and acceleration increases and then remains constant. Question 2: Based on the IDC notation given above, what is the total possible number of explanations of the behavior of the body's mass m and acceleration a? |
Re: The Educative Game by DarkRxn(f): 12:57am On Nov 18, 2008 |
R.B, will answer you later Elos Agos:Wrong! Light Rxn takes place in the thylakoids. Dark Rxn takes place in the stroma |
Re: The Educative Game by biolabee(m): 6:36pm On Nov 18, 2008 |
spikedcylinder: 5n6 = 11 7n8 = 15 9n10 = 19 11n12 = 23 13n14 = 27 theres one number left 15? richy 1)a = I,C 2) a) a = 0 the force is not enuff ` b) a = I,C increase from 0 and stay constant (inertia) c) a = D decelerations occurs steadily |
Re: The Educative Game by RichyBlacK(m): 6:59pm On Nov 18, 2008 |
biolabee: a = I,C means acceleration increases and then remains constant. This description for the acceleration is incorrect. In addition, you didn't outline a solution for mass, m, e.g. m = C which means mass will remain constant.
You outline three possible solutions. The number of possible solutions is much greater than that. Also, you didn't give any description for the mass m. There has to be a description for both acceleration and mass. Good attempts! |
Re: The Educative Game by Phemour: 2:32pm On Nov 19, 2008 |
Re: The Educative Game by RichyBlacK(m): 4:39pm On Nov 19, 2008 |
PHEMOUR: I know . I'll post the solution later today. I hope someone will give a correct solution by then. |
Re: The Educative Game by RichyBlacK(m): 4:49pm On Nov 19, 2008 |
RichyBlacK: Restrict the length of the explanation to three. So the following are valid explanations: i. m = I,D and a = D,I,C ii. m = I,C,D and a = C Explanations of length greater than 3 are not valid, e.g.: i. m = I,D,C,D,I and a = I,C,D,I ii. m = D,I,D,I and a = D,C,D,I,C This hint decreases the size of the set of possible explanations. Without restricting the length, the size of the set of all possible explanations using the IDC notation above would be infinite! |
Re: The Educative Game by DavidDylan(m): 4:50pm On Nov 19, 2008 |
Richy don come with his hopelessly difficult math questions. |
Re: The Educative Game by spikedcylinder: 4:56pm On Nov 19, 2008 |
apocalypse: Ah! I don't take anything on here seriously o. . . You were waiting for it to load? |
Re: The Educative Game by spikedcylinder: 5:03pm On Nov 19, 2008 |
biolabee: I didn't ask you to pair up the numbers. I only asked if on adding any two numbers next to each other, your resulting answer would be an odd number. Read the question well o. |
Re: The Educative Game by RichyBlacK(m): 5:06pm On Nov 19, 2008 |
DavidDylan: David, you dey craze o! But really, it's not that hard. Q1 is physics and Q2 is combinatorics (math). More hints: Assume F = ma (Newton's second law of motion) So, whatever happens we want F to remain constant (very useful hint). Using classical (Newtonian) physics, the solution is m = C and a = C. But constant acceleration guarantees that the velocity will ultimately exceed the speed of light, which goes against the theory of relativity. |
Re: The Educative Game by spikedcylinder: 5:16pm On Nov 19, 2008 |
There are 13 balloons in the red box, 39 balloons in the blue box, 25 balloons in the green box, and 50 balloons in the yellow box, children can decorate a party room for Christmas with 114 balloons from only three boxes. True or False? |
Re: The Educative Game by RichyBlacK(m): 5:39pm On Nov 19, 2008 |
spikedcylinder: True, from the blue, green and yellow boxes (39 + 25 + 50 = 114). |
Re: The Educative Game by spikedcylinder: 6:01pm On Nov 19, 2008 |
RichyBlacK: Correct. No balloons are needed from the red box. |
Re: The Educative Game by biolabee(m): 10:41pm On Nov 19, 2008 |
spiky i don hear |
Re: The Educative Game by RichyBlacK(m): 11:20pm On Nov 20, 2008 |
RichyBlacK: Solution Q1 F = ma (Newton's 2nd law). Applied force F is constant (given). Initial velocity v of the body = 0 (given; body at rest). Sustained F implies constant acceleration. Constant acceleration increases v, the body's velocity. From theory of relativity, the body's velocity v cannot be greater than the speed of light c. So, v increase and asymptotically reaches c. As v approaches c, the body's acceleration decreases and approaches zero (recall that at constant speed, acceleration is zero). If applied force is sustained and the acceleration begins to decrease (so that v respects the bound placed by the speed of light), then the relativity theory predicts that the mass of the body increases! Theoretically, if the speed of the body reaches the speed of light and remains constant at that speed, then the body will possess infinite mass! Also, at such a speed the body acquires the properties of a wave. Solution: m = C,I and a = C,D (if body does not reach the speed of light; this is the more likely scenario) |
Re: The Educative Game by RichyBlacK(m): 12:31am On Nov 21, 2008 |
Q2 All possible explanations for mass m: 1. C 2. D 3. I 4. C,D 5. C,I 6. D,C 7. D,I 8. I,C 9. I,D 10. D,C,D 11. D,C,I 12. D,I,D 13. D,I,C 14. I,C,D 15. I,C,I 16. I,D,C 17. I,D,I 18. C,D,I 19. C,D,C 20. C,I,D 21. C,I,C So, the number of possible explanations = 21 x 21 = 441 |
Re: The Educative Game by Gamine(f): 4:54pm On Nov 23, 2008 |
What Colour is the Amoeba? A, Black B, Brown |
Re: The Educative Game by biolabee(m): 5:10pm On Nov 23, 2008 |
i think brown gamine nice profile pix |
Re: The Educative Game by Gamine(f): 5:37pm On Nov 23, 2008 |
You are still thinking! gamine nice profile pix Thanks |
Re: The Educative Game by ayobase(m): 4:03pm On Nov 24, 2008 |
Who is very good in Control system here I have some probs, oK,let me shoot with this to know who is who, What is another name for an open loop system? |
Re: The Educative Game by jaybee3(m): 4:11pm On Nov 24, 2008 |
zero feedback system |
Re: The Educative Game by thetruth90: 11:56am On Nov 25, 2008 |
what walks on three legs, jumps on four legs and stands on seven legs? |
Re: The Educative Game by neowelsh(m): 12:11pm On Nov 25, 2008 |
oboy, that 1 hard o0o0o hope i got it right |
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