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1. ### Calculate the net electric flux?

...-m^2/C^2 so E = 9x10^9*3*10^-9/(0,05)^2 = 1200 N/C Part K  q2 has a radial position of r1 = sqrt(2^2 +(-4)^2) = sqrt(16+4) = sqrt(20...

2 Answers · Science & Mathematics · 10/02/2020

2. ### Pascal's triangle identity?

...fit the defining Pascal's Triangle property: C(m,k) + C(m,k-1) = C(m+1,k) [0 < k <= m].  ...

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

3. ### Pigeonhole principle - hard math problems?

...integer. Therefore, if we choose k (k > ceiling(k/2)) integers from T then at least two ...y∈S such that a≠b, {a,b}≠{x,y} and b−a=y−x. c. Let S = {s1,s2, ... ,sk} and s1<...

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

4. ### Another thermochemistry question to be explained?

find the mass of the sprite m_s = 1.037g/mL * 355mL = 368 g so 368g * 4.10J/g·ºC * (25.0ºC - T) = 6*90.7g * 1.670J/g·ºC * (T - -10.0ºC) T = 11.8º Maybe you missed the sign on the -10.0ºC; or...

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

5. ### Proof of combinatorics identity?

... (x+n+1)Cn .    We know mCk = (m-1)Ck + (m-1)C(k-1) because  mCk  = m! / [(m-k)!k!]  = (m-1)!*m / [(m-k)!k!]  = (m-1)!*((m-k...

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

6. ### pigeonhole principle - prove that, if n>(m+k−1)C(k−1)?

... 6C2 = 15 ways.    In general, there are (m+k-1)C(k-1) ways. So if n > (m+k-1)C(k-1)  then at least 2 ...

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

7. ### True or false about water?

... temperature and has a value of 0.9340 g/cm³ at −180 °C (93 K). Given that density of water varies between 0.9998 and 0.9997 (close to...

2 Answers · Science & Mathematics · 29/01/2020

8. ### A proton moves in the magnetic field B =0.42i^T with a speed of 1.2×107 m/s in the directions shown in the figure ?

...product For both (a) and (b), B = 0.42 i^ T and q = 1.6e-19 C (a) v = 0.71*1.2e7m/s*(i^ + k^) = 8.5e6*(i^ + k^) m/s F = 1.6e-19C * 8.5e6m/s * 0.42T * (i...

1 Answers · Science & Mathematics · 29/01/2020

9. ### Physics Help!!?

...12.7–16 = –28.7 J. ?? 1 electron charge = 1.602e-19 C Potential energy between two charges, in...    r is separation in meters    k = 8.99e9 Nm²/C² (9e9)(1.602e-19)(14•1.602e...

1 Answers · Science & Mathematics · 28/11/2019

10. ### Any good dad/mom/son names for a story, that go with Davis?

... or her story, I'd avoid another name starting with C, K, or J since you already have character names starting with those...

4 Answers · Arts & Humanities · 15/11/2019