What are the chief types of metamorphic rocks?
What will be an ideal response?
Answer: Metamorphic rocks are defined by texture: foliated and nonfoliated. The kind of rock produced depends on the parent rock and the grade of metamorphism. Foliated rocks include slate, schists, and gneisses. Nonfoliated rocks include marble and quartzite.
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A 110-V hair dryer is rated at 1200 W. What current will it draw?
A) 0.090 A B) 1.0 A C) 5.0 A D) 11 A E) 12 A
Light of wavelength 575 nm passes through a double-slit and the third order bright fringe is seen at an angle of 6.5° away from the central fringe. What is the separation between the double slits?
A) 5.0 µm B) 10 µm C) 15 µm D) 20 µm E) 25 µm
A uniform linear charge of 2.0 nC/m is distributed along the x axis from x = 0 to x = 3 m. What is the x component of the electric field at y = 2 m on the y axis?
a. ?5.0 N/C b. ?4.0 N/C c. ?5.7 N/C d. ?6.2 N/C e. ?9.0 N/C
The path of totality for a solar eclipse is swept out by the tip of the Moon's umbra as the umbra moves over Earth
a. True b. False Indicate whether the statement is true or false