Early human culture, involving villages and a sense of history, could best be described as a(n)
A) industrial culture.
B) migratory culture.
C) hunting culture.
D) scientific culture.
E) agri-culture.
E
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Energy in Capacitors: An air-filled parallel-plate capacitor is constructed with a plate area of 0.40 m2 and a plate separation of 0.10 mm. It is then charged to a potential difference of 12 V? (?0 = 8.85 × 10-12 C2/N ? m2)(a) How much charge is stored on each of its plates?(b) How much energy is stored in it?
What will be an ideal response?
A multiple-slit diffraction grating has a slit separation of 1.75 × 10^?6 m. Find the wavelength of the monochromatic light that will have its second-order bright fringe diffracted through an angle of 36.0°. (1 nm = 10?9 m)
a. 389 nm b. 868 nm c. 514 nm d. 343 nm e. 257 nm
Simple Pendulum: A pendulum of length L is suspended from the ceiling of an elevator. When the elevator is at rest the period of the pendulum is T. How does the period of the pendulum change when the elevator moves upward with constant velocity?
A. The period does not change. B. The period increases. C. The period decreases. D. The period becomes zero. E. The period increases if the upward acceleration is more than g/2 but decreases if the upward acceleration is less than g/2.
How much power is theoretically available from a mass flow of 1 000 kg/s of water that falls a vertical distance of 120 m?
a. 1.18E+6 kW b. 1.20E+5 kW c. 1.18E+3 W d. 8.17E+1 W e. 1.18E+6 W