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1. ### can someone define x=v_x*t?

v_x is velocity in the X direction. A better way to write this is Vx = |V| cos(theta), where |V| is the velocity magnitude (speed) and theta is...

1 Answers · Science & Mathematics · 07/02/2010

2. ### What is A = sqrt(1-(v/c)^2)/sin(phi+theta) an expression for?

sqrt(1-(v/c)^2) = L(v/c) is of course the...relativity. Some cite it as gamma, G(v/c) = 1/L(v/c). We see the transformation...the other must decrease; and vice versa, as long as v/c remains the same. Meaning...

1 Answers · Science & Mathematics · 08/01/2011

3. ### How much charge does a 10 V battery have...?

C=Q/V Q = CV When the two capacitors are ...2e-6*10 = 2.2e-5 C Charge in C2 = Q2 = C2*V = 5.3e-6*10 = 5.3e-5 C Total Q1 + Q2 = 7.5e-5 ...

1 Answers · Science & Mathematics · 15/02/2012

4. ### v = -(r)I + E INTERNAL RESISTANCE HELP!?

V is the potential difference E is the EMF ( Electromotive...whatever it is a bulb a resistor anything ) If we make a equation E = V + Ir If you make V the subject . V = -Ir + E...

1 Answers · Science & Mathematics · 15/07/2008

5. ### A 12.6 V battery is in series with a 30.0 mH inductor and 0.150 ohm resistor connected through a switch. When?

Let V_s = the voltage of the battery = 12.6 V Let i = the current through the... Let L = the inductance of the inductor = 0.03 H Let V_r = the voltage across the resistor = (i)R Let V_l = the voltage across...

1 Answers · Science & Mathematics · 28/10/2013

6. ### What is the corresponding potential function V(x)?

Answer … V(x) = E - ( ħ ² k / m ) [ 1 - 2 k x ²...x ² ) ………………. = - 2 k [ 1 - 2 k x ² ] ψ … V ψ = E ψ + ( ħ ² / 2m ) d ² ψ / d x...

1 Answers · Science & Mathematics · 13/03/2012

7. ### Derive a relation between the potential V and the magnitude of the field E at a radial distance, r, from the a?

Answer ... V = - r E • ln [ r / a ] ... Consider the rod as a very... by S is … …Q = ρ₀ V = ρ₀ ( π a ² ) h … then, according to...

1 Answers · Science & Mathematics · 10/08/2012

8. ### A 2.90μF capacitor is charged by a 12.0-V battery. It is disconnected from the battery and then connected to a?

C = Q / V Initial Charge Q0 = C1 V1 = 2.90μF... = C1 V1 + C2 V2 V1 = V2 = V (Parallel) Q0 = V (C1 + C2) V = ...

2 Answers · Science & Mathematics · 07/07/2013

9. ### Two resistances, R1 and R2, are connected in series across a 12-V battery. The current increases by 0.25 A whe?

I_1s2 = V_S / (R_1 + R_2) R_1 = V_S / (I_1s2..._1 + R_2 = V_S / (I_1s2 + 0.25A) + V_S / (I_1s2 + 0.13A) R_1 + R_2 = V_...

1 Answers · Science & Mathematics · 05/10/2013

10. ### why v=w*r is correct equation explain with diagrame?

Hello Zeeshan, v = r w as we consider only the magnitudes. As we write...r d@/dt By definition ds/dt is the linear velocity v and d@/dt is the angular velocity w Hence v = r w...

4 Answers · Science & Mathematics · 14/11/2012