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1. ### Let A = i – 2j + k, B = i + j – 2k, and C = 2i – j + k. find all the unit vectors that are linear combinations?

... + NB an X..C = 0 or m(A.C) +n (B.C) = 0 or m[2(i.i) + 2(j.j) + k.k] + n[2(i.i) - (j.j) -2(k.k)] = 0 or 5m - n = 0 or n = 5m...

1 Answers · Science & Mathematics · 07/05/2009

2. ### if A(-2, 0), B(0,4) and C(0,k) be three points such that area of triangle ABC is 4 sq units, find the value of?

...) k = 0 unit ============================ A(-2, 0), B(0,4) and C(0,k) First column is the x –values Second column is...

2 Answers · Science & Mathematics · 29/03/2012

3. ### aparticle has kinetic energy K = 60 MeV when its momentum magnitude p = 101 MeV/c, what is the ratio m/me?

... + K^2 -P^2 -2MK = K^2 -P^2 M = (K^2 -P^2) / (-2K) = (60^2-101^2)/(-120) = 55.008 MeV/c^2 M / Me =55.008/0.51 = 107.8 m = 107.8me

1 Answers · Science & Mathematics · 05/05/2015

4. ### Finding velocity and position?

...6cos(3t) k v( t ) = -2e^(-2t) i + t^3 j + 2sin(3t) k + C ------> at t = 0 , v = 2j which means <...e^(-2t) + 2t , (1/4)t^4 + 2t , (-2/3) cos(3t) > + C -----> (0 , 0 ) x ( 0 ) = < e^(-2*0...

2 Answers · Science & Mathematics · 09/09/2011

5. ### Why is the specific heat of water equal in degrees C and K? (4.186J/kgC = 4.186J/kgK)?

Yes, they are equal. one degree C = one degree K. They have a different zero point, but the size of one degree is the same...

2 Answers · Science & Mathematics · 27/06/2012

6. ### consider a system of three equal mass particles moving in space; their postions are given by a i + b j + c k?

...vector for the centre of mass is (2t + 3)i Repeat for j and k.

2 Answers · Science & Mathematics · 03/04/2011

7. ### What is the magnitude of the sum of the following vectors? A = i + 5j -k B = 4i - j - 5k C = -i + j?

...coefficient of i in vector A to coefficient of i in vector B and coefficient of C. Repeat the procedure to coefficients j and k . You get A+B => A+B = 4i +5j -6k ...

2 Answers · Science & Mathematics · 20/02/2013

8. ### A spring with spring constant k = 800 N/m is extended 12 cm from its equilibrium position. A spring with 6.0 c

ans e) 3200 N/m reason : it is bcoz,potential energy of a spring=1/2.k.x^2 for first spring,k=800 N/m , x=12 cm for second spring,k=? , x=6 cm equating & solving the equation,we get 3200 N/m ans.

3 Answers · Science & Mathematics · 12/07/2008

9. ### Physics question, help?

Its very simple.. 0°C = 273.15 K, so to convert for °C to °K add 273.15, and from °K to °C subtract 273.15: Change 50°C...

2 Answers · Science & Mathematics · 27/06/2010

10. ### physics question?

The Answer is 310 K (C). The way to come to this conclusion is to use your ideal gas equation...

1 Answers · Science & Mathematics · 24/02/2008