Points A, B, and C form the vertices of a triangle in a non-uniform electrostatic field. The electrostatic work done on a particle of charge q as the particle travels from A to B is WAB and that done on the particle as it travels from A to C is WAC=−WAB/7.
How much electrostatic work is done on the particle as it travels from B to C?

total distance travelled = 60 miles

total time taken =1.5 hours

average speed = total distance / total time

60 / 1.5

= 40

therefore, average speed = 40 m/h

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the temperature and the pressure affect solubility. temperature affects by changing the properties of the solvent. the increase in pressure increases solubility, the decrease in pressure decreases solubility.

can be answered using momentum.

momentum = p

p1= mass1 * velocity1

p1 = p2

therefore

p1 = 6kg * 4m/s

p1 = 24kgm/s

p2=m2 * v2

24 kgm/s = 7kg * v2

v2 = 24 kgm/s / 7kg

v2= 3.42 m/s