A typical shooting star in a meteor shower is caused by a ________ entering Earth's atmosphere
A) boulder-size particle from an asteroid
B) boulder-size particle from a comet
C) pea-size particle from an asteroid
D) pea-size particle from a comet
E) microscopic particle of interstellar dust
D
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RMS and Peak Quantities: The current through a 50-? resistor is I = (0.80 A) sin(240t). What are (a) the current amplitude and (b) the rms current?
What will be an ideal response?
______ is a website that provides a platform for posting user-created animated GIFs.
A. YouTube B. Tumblr C. Flash D. Pinterest
Transverse waves y1 = A1 sin(k1x??1t) and y2 = A2 sin(k2x??2t), with A2>A1, start at opposite ends of a long rope when t = 0. The magnitude of the maximum displacement, y, of the rope at any point is
A.
B.
C.
D.
.E.
.Find the kinetic energy (in terms of Planck's constant) of a baseball (m = 1 kg) confined to a one-dimensional box that is 25 cm wide if the baseball can be treated as a wave in the ground state
a. 3 h2 b. 2 h2 c. h2 d. 4h2 e. 0.5 h2