Select the correct answer. Which two atoms are isotopes of each other?
O A. si and 25 mg
OB. Z. Mg and 7 AI
Oc 7, Mg and 23 Mg
OD. 73 Na and 22 Mg
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Charge is distributed along the entire x-axis with uniform density λ. how much work does the electric field of this charge distribution do on an electron that moves along the y-axis from y = a to y = b? (use the following as necessary: a, b, ε0, λ, and q for the charge on an electron.)

Which of the following statements correctly describes a transformer?

Use the ratio form of kepler’s third law, = , and the data provided to determine the time it takes mars to orbit the sun. round your answer to the nearest tenth. earth’s orbital period = 1.0 earth year earth’s distance from the sun = 1.0 au mars’s distance from the sun = 1.5 au it takes mars about ⇒ 1.8 earth years to orbit the sun.