Aresistor is placed in a circuit. the voltage of the circuit is changed and the current is measured. the graph seen here shows the data that was collected. determine the resistance of the resistor in this circuit. a) 0.5 ohms b) 1 ohm c) 2 ohms d) 3 ohms

The answer is C. 2 Ohms

Explanation:

The slope of this graph is the resistance within the circuit. Ohm's law states that V=IR. When this is solved for resistance, R =

V

I

. The slope in any graph is defined as the

change in Y

change in X

. Picking the first and last point, change in Y is voltage and change in X is current. m =

Y

X

=

12 V

6 A

= R = 2 Ohms.

frequency, z, and the collision density, z, in carbon dioxide (co2), r 180 pm at 30 °c and 120 kpa

most historians agree that gabriel mouton, the vicar of st. paul’s church in lyons, france, is the “founding father” of the metric system. he proposed a decimal system of measurement in 1670. mouton based it on the length of one minute of arc of a great circle of the earth (now called a nautical mile, 1852 meters). he also proposed the swing-length of a pendulum with a frequency of one beat per second as the unit of length (about 25 cm). a pendulum beating with this length would have been fairly easy to produce, thus facilitating the widespread distribution of uniform standards. over the years, his work was revised, improved, and extended by a number of french scientists.

the political sponsor of weights and measures reform in the french revolutionary national assembly was the bishop of autun, better known as talleyrand. under his auspices, the french academy appointed several committees to carry out the work of developing a usable system of weights and measures for france. one of the committees recommended a decimalized measurement system based upon a length equal to one ten-millionth of the length of a quadrant of the earth’s meridian (i.e., one ten-millionth of the distance between the equator and the north pole).