Two point charges of 30 nC and – 40 nC are held fixed on an x-axis at the origin and at x = 72 cm, respectively. A particle with a charge of 10 μC is released from rest at
x = 30 cm. If the initial acceleration of the particle has a magnitude of 12.5 × 103 m/s
2
,

find the mass of the particle.

Aspecified volume of space contains an electric field for which the magnitude is given by e=e0cos(ωt). suppose that e0 = 20 v/m and ω = 1.0 × 107 s−1. part a what is the maximum displacement current through a 0.80 m2 cross-sectional area of this volume? express your answer with the appropriate units. idisp,max i d i s p , m a x = nothing nothing request answer part b how would this area have to be oriented relative to the electric field to get this maximum displacement current?

5400 j of energy are given off when a 50 g of aluminum pan changes temperature. does the temperature of the pan increase or decrease and by how much?

Which of the following has the greatest impact on an ecosystem migratory animals predation human inference