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1. ### The graph v -t represents the movement of two particles A and B that start from the same initial position and the same straight path.?

...m A2 ...t from 4 to 8 sec acceleration a2 = (30-30)/4 = 0 space SA2 = V *(8-4) = 30*4 = 120 m A3 ...t from 8 to 12 sec acceleration a3 = (0-30)/4...

2 Answers · Science & Mathematics · 14/06/2020

2. ### El grafico v -t representa el movimiento de dos particulas A y B que parten de una misma posicion inicial y la misma trayectoria rectilinea.?

...m A2 ...t from 4 to 8 sec acceleration a2 = (30-30)/4 = 0 space SA2 = V *(8-4) = 30*4 = 120 m A3 ...t from 8 to 12 sec acceleration a3 = (0-30)/4...

1 Answers · Science & Mathematics · 14/06/2020

3. ### a bus starts its journey from rest with a constant acceleration 5m/s^2 find its velocity at t=2sec.and draw v -t graph?

v (t) = 5t When t = 2, we have: v (2) = 10 ms⁻¹ A sketch is below. :)>

2 Answers · Science & Mathematics · 13/09/2020

4. ### A racquet ball with mass m = 0.225 kg is moving toward the wall at v = 15.5 m/s and at an angle of θ = 29?

...momentum of the racquet ball? This one is clear Δp = mΔ v = 0.225(-10.5 - 15.5) = 5.85 kg•m/s 5) What is the time the ball...

3 Answers · Science & Mathematics · 19/08/2020

5. ### What is the resistance of a toaster if 120 V produces a current of 5.0 A?

Ohm's law: V = IR Then, R = V /I Resistance, R = 120/5.0 = 24 Ω

5 Answers · Science & Mathematics · 17/02/2020

6. ### This figure shows a combination of capacitors across which a potential difference of V = 12.5 V is applied by a battery.?

... = 17.3*4.5 /(17.3+4,5) = 3.57 μF Q = C123* V = 12.5*3.57 = 44.64 μC V3 = Q/C3 = 44.64/3.57 = 9...

3 Answers · Science & Mathematics · 26/09/2019

7. ### Points A and B have electrical potentials of 6 V and 17 V respectively. How much energy will a proton gain in moving from point A to point B?

Δ V = 17 - 6 = 11volts ΔE = qΔ V = 1.6*10^-19 * 11 = 1.8*10^-18J (rounded to 2 sig. figs.) Don't forget units (or lose a mark)!

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

8. ### the potential difference across two plates is 1.50 V . If the plates are 8.22*10^-4 m apart, what is the electric field between them?

The field can be expressed in V /m (or N/C), so one might reasonably guess that field = potential / distance here E = 1.50V / 8.22*10^-4m = 1.82*10*3 V /m (or N/C) 1820 N/C

1 Answers · Science & Mathematics · 17/01/2020

9. ### if two points in an electric circuit have a potential difference of 24 V between them...?

V = E/Q rearranged gives E = QV E = 6*24 = 144J

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

10. ### Two particles of masses m and 4m are moving toward each other along the x-axis with the same speed v .?

...momentum is the same before, during, AND after the collision -- p = (4m - m)* v = 3mv ← #1 Q2/ For an elastic head-on collision, the relative velocity of...

1 Answers · Science & Mathematics · 17/06/2020