Do you think that this experiment confirms the validity of the series resistor equation used in Procedures 2(f), 3(f), and 4(f)?
Yes, these results are well within the errors inherent in the reading accuracy of the
electrical meters used.
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A CD has a diameter of 12.0 cm. If the CD is rotating at a constant frequency of 4.00 cycles per second, then the period of the rotational motion is
A. 0.250 s. B. 0.500 s. C. 0.750 s. D. 1.00 s. E. 1.25 s.
A ray of light, which is traveling in air, is incident on a glass plate at a 45° angle. The angle of refraction in the glass
A) is greater than 45°. B) is less than 45°. C) is equal to 45°. D) is unknown because it all depends on the index of refraction of glass.
We can describe a location on Earth's surface by stating its
A) altitude and direction (or azimuth). B) meridian and longitude. C) latitude and direction. D) latitude and longitude.
If the interplanar spacing of NaCl is 2.814 × 10^?10 m, what is the predicted angle at which X-rays of wavelength 0.140 nm will be diffracted in a first-order maximum?
a. 31.3° b. 7.20° c. 20.5° d. 14.4° e. 29.8°