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1. ### find a. given that y = k / (ax +2) and that y = 10 when x = 5 and y = 3.75 when x = 14?

k/(5a + 2) = 10 k/(14a + 2) = 3.75 k = 10 (5a + 2) k = 3.75 (14a + 2) 50a + 20 = 52.5 + 7.5 2.5a = 12.5 a = 5

4 Answers · Science & Mathematics · 09/06/2011

2. ### Find the center (h, k) and radius r of the circle with the given equation.?

If a circle has centre (h,k) and radius r, then (x-h)² + (y-k)² = r²...9)² = 81. Similarly, y² + 8y + k is a perfect square if k = (-8/2)² = (-4)²...

1 Answers · Science & Mathematics · 18/10/2010

3. ### In Hooke's Law, is the elastic constant (k) meant to stay the same number no matter what the force is?

k will stay the same until it passes a certain point which destroys the elasticity of an object and it will not return to normal k the new k will be weaker also the larger your width it will have a MUCH greater k value

3 Answers · Science & Mathematics · 27/10/2008

4. ### n = 2.75 mol of Hydrogen gas is initially at T = 324 K temperature and pi = 2.20×105 Pa pressure. The gas is t?

...n = 2.75 moles R = 8.31 J/(mol.°K) Ti = 324 °K Pf = 6.76 x 10^5 ...5)) lnT2 = 5.7807 - 0.3115 T2 = 237.3 °K <=== is the final temperature Hope...

2 Answers · Science & Mathematics · 08/04/2013

5. ### What is i,j,k in the 3D coordinate system?

The î, ĵ, k are unitary vectors. Unitary vectors are...+bĵ+ck /= 0 for all real numbers a,b,c. The î, ĵ, k basis is an orthonormal basis, meaning that the basis vectors ...

5 Answers · Science & Mathematics · 12/12/2012

6. ### the value of k and the velocity of the particle when x=-2m?

a = k(1-e^-x) Since acceleration is the derivative of velocity, therefore we can write it as dV/dt = k(1-e^-x) dV = k(1-e^-x)dt integral dV = integral [k(1-e^-x)]dt ...

1 Answers · Science & Mathematics · 26/01/2010

7. ### Which atom would be the strongest reducing agent. K Ca?

K is stronger. K has one redundant electron while Ca has 2 redundant electrons which makes K more active.

2 Answers · Science & Mathematics · 28/07/2009

8. ### Isothermal compression? n = 2.62 mol of Hydrogen gas is initially at T = 336 K temperature and pi = 3.43?

n = 2.62 T = 336 K pi = 3.443 bar pf = 9.01 bar A) pV = nRT........ (1) Hydrogen is diatomic gas, cp/cv = k = 1.4 Isentropic process, pv^k = constant = c p1v1^k = p2v2...

1 Answers · Science & Mathematics · 21/06/2013

9. ### what is the si unit of Ks show yor answer in terms of base units using correct symbols.Show how worked it out

... usual (and clearer) way to write this relation is: E = 1/2 k x^2 Note that E is energy (and therefore has ...

5 Answers · Science & Mathematics · 12/03/2008

10. ### Find the electric potential at point P due to the dipole shown. a) (10 pts) Give your answer in terms of q, k,?

...part is easy, just write down the potential... V = k q [1/a-1/b] b) Notice that the extra distance from...1/(1+x) = 1 - x + ... for |x| < 1. V ≈ k q [1/r-1/r (1 - d/r cosθ)] = k q [d cosθ/r²]

1 Answers · Science & Mathematics · 25/07/2013