If a Burger’s circuit is performed around a dislocation, the Burger’s _____________closes the circuit.
Fill in the blank(s) with the appropriate word(s).
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A boat loaded with ice is floating in a swimming pool. If the ice is thrown into the pool, the water level in the pool, once the ice stops bobbing and floats steadily,
A) rises. B) falls. C) stays the same. D) There is not enough information to answer this question.
An object weighs 30 newtons on Earth. What is its approximate mass?
A. 12 kg B. 294 kg C. 640 kg D. 3 kg E. 30 g
The mass of the Moon is 7.4 × 1022 kg, its radius is 1.74 × 103 km, and it has no atmosphere. What is the free-fall acceleration at the surface of the Moon? (G = 6.67 × 10-11 N ? m2/kg2)
A) 2.8 × 106 m/s2 B) 9.8 m/s2 C) 4.9 m/s2 D) 1.6 m/s2 E) 0.80 m/s2
In a double-slit experiment, the distance between the slits is 0.2 mm and the distance to the screen is 150 cm. What is the phase difference (in degrees) between the waves from the two slits arriving at a point P when the angular distance of P is 10° relative to the central peak, and the wavelength is 500 nm? (Convert your result so the angle is between 0 and 360°.)
a. 145° b. 155° c. 165° d. 135° e. 95°