A balance uses small metal weights of known mass to determine the mass of a substance. Where would a balance NOT function correctly? A balance scale.
A.
in a vacuum on Earth
B.
on the Moon's surface
C.
on the Earth's highest mountain
D.
in a zero-gravity environment

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The experiment done in lab is repeated, using a ball that has unknown mass m. you plot your data in the form of f 2 versus m/l, with f in rev/s, m in kg, and l in m. your data falls close to a straight line that has slope 3.19 m/(kg · s2). use g = 9.80 m/s2 and calculate the mass m of the ball.

Apropagating wave in space with electric and magnetic components. these components oscillate at right angles to each other. it may travel in a vacuum. determine the term.