Physics, 01.11.2019 06:31 Fangflora3

Which of the following might be measured in
square meters?
a. the length of a pendulum string
b. the volume of an atom
c. the mass of a book
d. the area of a desk top

Answers: 1

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Answer from: sandovalito

The correct answer to this question is D. The area of a desk top.

Explanation:

Square meters, or m^2, are the units that represent area, or the product of two lengths. This is because the length and the width both have the units meters, so when multiplied to calculate area, the resulting units are square meters or m2. Thus, the answer for this question is D.

The length of a pendulum string would be measured in meters.

The volume of an atom would be measured in m^3 (volume is the product of the length, width, and height, giving it a cubic power). However, the volume would probably be measured in a much smaller unit because atoms are very small.

The mass of a book would likely be measured in grams or kilograms.

Answer from: tyhe

A. The length of a pendulum string . . . No. Square meters is not a unit of length. That would be multiples or fractions of a meter.

B. The volume of an atom . . . No. Square meters is not a unit of volume. That would be multiples or fractions of a cubic meter.

C. The mass of a book . . . No. Square meters is not a unit of mass. That would be multiples or fractions of a kilogram.

D. The area of a desk top . . . YES ! Square meters is a unit of area.

Answer from: Quest

If there was no gravity then their would be no downword force on the football to have it return the the grownd, and if there was no friction (mainly air friction) then there would be no opposing force the stop the ball from moving through the air allowing the ball to travle ∞.

Answer from: Quest

Ohm's law tells you that i = v/r where v is equivalent voltage and r is equivalent resistance of the circuit
since all circuits have the same voltage, your question is really asking which circuit has the lowest total resistance, since the lower the resistance, the higher the current
circuit a has a resistance of 5 ohms; circuit c is in series so has a resistance of 10 ohms; circuit b is in parallel and therefore has a resistance of 2.5 ohms (review your notes on adding resistances in parallel and series); therefore b has the highest current

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Which of the following might be measured in
square meters?
a. the length of a pendulum...

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