How does metamorphic rock form?
What will be an ideal response?
Formed when rock is exposed to heat and pressure
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Answer the following statement(s) true (T) or false (F)
1. Consider an infinite solenoid. Imagine placing a mirror so that mirror’s plane contains the solenoid’s central axis. Such a mirror would satisfy the conditions of the mirror rule. 2. An infinite solenoid’s magnetic field is uniform everywhere in the solenoid’s hollow interior.
The Metonic cycle is
A) used to keep lunar calendars approximately synchronized with solar calendars. B) used to predict the future orientation of the Earth's axis in space. C) the ancient Greek name for the cycle of lunar phases that repeats every 29 1/2 days. D) the 18-year, 11-day period over which the pattern of eclipses repeats.
A 120-V rms voltage at 1000 Hz is applied to a series LRC circuit with an equal value of inductive and capacitive reactance and a 200-? resistance. What is the impedance of this circuit?
A) 100 ? B) 0 ? C) 240 ? D) 120 ? E) 200 ?
Uniform Circular Motion: In order to simulate weightlessness for astronauts in training, they are flown in a vertical circle. If the passengers are to experience weightlessness, how fast should an airplane be moving at the top of a vertical circle with a radius of 2.5 km?
A. 79 m/s B. 310 m/s C. 260 m/s D. 160 m/s E. 510 m/s