...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

... 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

...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

...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

...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

(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

.../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

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

...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

... 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