Pls help hurry

think about the oscillation of the toy shown in the video. when the toy is at the highest point of its motion, its velocity is zero and its acceleration is negative.

an ion is a charged atom or molecule. it is charged because the number of electrons do not equal the number of protons in the atom or molecule. an atom can acquire a positive charge or a negative charge depending on whether the number of electrons in an atom is greater or less then the number of protons in the atom.

pe = weightxheight = 2000x1000=2,000,000joules

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