A shopping cart is given an initial velocity of 4 m/s and experiences a constant acceleration of 4 m/s2. What is the magnitude of the cart’s displacement after the first 4 s of its motion?

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.

second mirror gathers light from a faraway object and reflects it to another mirror. - a.

show the wavelengths of a wave. show the crests of a wave.

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