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related to: K.C

1. ### An honor card is a face card or an ace. How many bridge hands contain exactly k honor cards for k = 1,...13.?

...16 honor cards, pick k - From the 36 non-honor cards, pick 13- k C (16, k ) * C (36,13- k ) You can calculate that value for k =0 to 13, though...

1 Answers · Science & Mathematics · 09/01/2020

2. ### A freezer sits in a large room. A container of liquid water, with a volume of 4.7 L and at a temperature of 0° C ?

...heat is taken=  ΔS =Q/T = 5.75kJ/ K c ) COP = 4  = Q/(Qr-Q) =4 1569.8 / (Qr- 1569.8...

1 Answers · Science & Mathematics · 14/08/2020

3. ### What is the capacitance of two metal plates each of area 0.96 m^2 and separated by 0.5 mm using aluminum oxide as the material?

C = k *e*A/d, where C = capacitance in Farads k = relative permittivity e... relative permittivity of 99.5% Alumina is 9.8. So: C = 9.8 * 8.854e-12 * 0.96/0.0005 C = 1.666e-7 F = 166.6 nF

1 Answers · Science & Mathematics · 08/02/2020

4. ### At what temperatures will a reaction be spontaneous if ΔH = -12.7 kJ and ΔS = +135 J/ K ? (Multiple Choice)?

ΔG = ΔH - TΔS At equilibrium, ΔG = 0 0 = -12700 - (T)(+135) 12700 = - (T)(+135) Do you see how T will wind up to be a negative value. Which is, of course, an impossible value. Hence, answer...

1 Answers · Science & Mathematics · 06/02/2020

5. ### For which of the following values of x is the equation (sin x + cos x)^2 = k true, for 1< k < 2 ?

(sin x + cos x)^2 = k sin x ^2 + cos x ^ 2 + 2*sin x * cos x = k (sin x ^2 + cos x ^ 2) + 2*sin x * cos x = k 1 + 2*sin x * cos x  = k 1 + sin 2x = k sin 2x = k - 1 let k - 1 = j find sin 2x = j where  0<...

1 Answers · Science & Mathematics · 02/08/2020

6. ### A sample of a gas occupies 17 mL at -112 C . What volume does the sample occupy at 70 C ?

-112 C is 161 K . 70 C is 343 K V2 = V1 (343/151) I get 36 mL.

2 Answers · Science & Mathematics · 31/05/2020

...gt;2⁺ g(x) = 3 Something to watch out for is that lim x--> c ⁻ k (x) = lim x--> c ⁺ is necessary for k to be continuous at c , but not sufficient...

1 Answers · Science & Mathematics · 23/08/2020

8. ### Can you solve it?

(1 + x/2)^n = ∑ C (n, k ) (x/2)^ k        . . . . sum from k =0 to n The x^3 term... the only feasible result. Test: C (n, 3)/2^ k = C (6, 3) / 8 = 20 / 8 = 5/2 5n / 12 = 5*6 / 12 = 5/2 Yep...

3 Answers · Science & Mathematics · 23/02/2020

9. ### can someone help?

... of n people chosen k at a time. C (n, k ) = n! / ( k ! (n- k )!) C (10,3) = 10! / (3! 7!) = 120 I have trouble remembering the formula, so...

4 Answers · Science & Mathematics · 07/10/2019

10. ### Need help finding magnitude of K .?

from the arrhenius equation .. k = Ao exp(-Ea / RT) for 2 conditions of different ...

1 Answers · Science & Mathematics · 09/02/2020