The position of an object that is oscillating on a spring is given by the equation x = (18.3 cm) cos[(2.35 s-1)t]. What are the (a) frequency, (b) amplitude, and (c) period of this motion?
What will be an ideal response?
(a) 0.374 Hz (b) 18.3 cm (c) 2.67 s
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Photoelectric Effect: A photocathode that has a work function of 2.4 eV is illuminated with monochromatic light having photon energy 3.5 eV. What is the wavelength of this light? (c = 3.00 × 108 m/s, h = 6.626 × 10-34 J ? s, 1 eV = 1.60 × 10-19 J)
A. 350 nm B. 330 nm C. 300 nm D. 380 nm E. 410 nm
Adiabatic processes occur in Earth's
A) atmosphere. B) oceans. C) mantle. D) all of the above E) none of the above
What evidence did probes to Mars find that makes it a prime candidate for life?
What will be an ideal response?
If the power rating of a 400-? resistor is 0.800 W, what is the maximum voltage that can safely be connected across the resistor?
A) 1.80 V B) 170 V C) 110 V D) 17.9 V