19-um trem 200 m de comprimento move-se com velocidade escalar constante de 72 km/h. calcule o tempo decorrido para esse trem passar completamente:
a)por uma pessoa parada à beira da ferrovia; b)por um túnel de 100 m de extensão.

i sometimes feel that way too. i feel that i should hurt someone because they hurt me, but i wouldnt do it. that would make things so much worse i have so much experience with this stuff

explanation:

current and voltage can both be different in different parts of a circuit so it matters where you place the ammeter and voltmete

iron would move it is magnetic there is a mag field around the current in the wire

firearm identification is the process of analyzing the bullets and cartridge cases left at a crime scene to determine if they came from a particular firearm. marks on the bullets and cartridges may be common to every firearm of that type. these are called class characteristics.