A negatively charged particle (m 2.67 x 10-26 kg, g 3.2 x 10-19 C) has a speed o

Question

A negatively charged particle (m 2.67 x 10-26 kg, g 3.2 x 10-19 C) has a speed of 532 m's at point A and moves to point B where it momentarily stops. Only electric forces act on the particle during this motion. Determine the electric potential difference VB VA + 12 mV 12 mV +5.4 V 5.4 V eating coil in an electric kettle generates enough power to raise Properties of Water 0.45 kg of water from 20.0°C to the boiling point in 125 seconds. Cwater 4186 J/(kg C) Assume none of the water vaporizes. The electric kettle is connected to a 110 V emf source. What is the resistance of theCice heater coil? 2090 J/(kg. °C) Csteam 2010 J/(kg.°C) L 3.33 x 10 J/kg L. 12.26 x 100 J/kg a. 5.0 10.0 1200 ? d. 15 Two equally charged particles exert a force on each other with magnitude 100.0 N. The charge on each particle is +5.0 uC. What is the separation between the particles? S- 9.3 mm 4.7 cm 8.0 cm

Explanation / Answer

14) we know

change in potential (V) = Vb - Va = work/ charge

here, work = 1/2*m*v2 = 0.5*2.67*10-26*(532)2

work = 377837.04*10-26

now, V= work/ charge =  377837.04*10-26/ -3.2*10-19

V = -11.8 mV

Hence B is the correct answer

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