apakah teori mengenai listrik statis itu benar atau salah? Dimana teori tersebut berkata bahwa elektron pada suatu benda yang netral dapat berpindah dari satu benda ke benda yang lain ketika terjadi kontak (dengan cara konduksi, digosokkan dan induksi), sehingga benda yang mendapatkan elektron akan bermuatan negatif. Benda yang bermuatan negatif dapat menarik benda lain yang bermuatan netral.

waves moving from a fast medium to a slow medium will experience a reflection as light travels more slowly than red light. total internal reflection occurs when the critical angle is.

continuous conducting path for current, power supply

answer: the potential energy decreases from 379 j to 243 j

explanation:

for the law of conservation of energy, the total energy in a system must be conserved. the total energy of the system is given by the sum of kinetic (k) and potential (u) energy:

e = k + u

the total energy is e=675 j, and this does not change.

initially, the kinetic energy is k=296 j, so the potential energy is

at the end, the kinetic energy is k=432 j, so the potential energy is

so, we see that the potential energy has decreased from 379 j to 243 j.