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  1. ...current is 13A, this means (R= V /I) that the contact resistance should be no more than 75x10...) of 75x10^-3x13 = 1W approx. The temperature rise (45K) depends on both he power AND the...

    3 Answers · Science & Mathematics · 29/06/2011

  2. ... it progresses through successive equilibrium states ), then it is an adiabatic and isentropic process. ... by the following relation: P* V ^k = constant where k is the adiabatic index or ratio...

    1 Answers · Science & Mathematics · 05/02/2010

  3. ...g g + kv^2 = (g + kv0^2) exp(-2kx) ... (R) v = v0 when x = 0 FIRST RISE : when x = 0 (ground), v = v0 = vterminal v0^2 = g/k when x = 10, v = 0 eqn (R) gives: g...

    6 Answers · Science & Mathematics · 03/07/2008

  4. ...parabola, except that the problem asks us to state some answers with an unknown "bridge-to-water distance". How long it rises : v - at = 0 t = v /a = 15/9.81 = 1.53 seconds...

    2 Answers · Science & Mathematics · 09/10/2010

  5. ...further, you need to know the equation of state of your system (i.e., how p, T, V and n are related... dealing with a parcel of gas rising in the atmosphere, so it's likely you...

    1 Answers · Science & Mathematics · 03/11/2012

  6. (a) v = u + at v = 5.40 + (-9.81) × 2 v = -14.22m/s in an upwards direction. (velocity is a vector so you must state both magnitude and direction) (b) s = ut + ½at² s = 5.40 × 2...

    1 Answers · Science & Mathematics · 14/10/2008

  7. .../R b) The current rises in an exponential way due to the inductance...equation for current is: I = ( V /R) * (1 - exp[-t / τ] ) c) At steady- state , the inductance acts as a zero-resistance...

    2 Answers · Science & Mathematics · 20/03/2007

  8. Hello Derrick Rose Fan, the problem is to be stated rather in the right way. A car ... its actually velocity? Let v be the velocity. Let it be ...

    1 Answers · Science & Mathematics · 23/09/2012

  9. ...so it begins to expand and rise - taking the entire balloon with... called buoyancy - which states that less dense things will...the density formula is d=m/ v . Density = mass / volume.

    3 Answers · Science & Mathematics · 17/07/2008

  10. ... distance, s, taken to reach the maximum velocity is given by v ^2 = u^2 + 2as, taking a time, t, given by v = u + at. The initial...

    2 Answers · Science & Mathematics · 08/09/2012

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