Coronal holes are cooler parts of the corona from which the solar wind escapes.
Answer the following statement true (T) or false (F)
True
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DNA is coiled into a tight spiral and makes up the ____ that are the genetic material in a cell
a. genes b. amino acids c. enzymes d. nucleus e. chromosomes
Light of wavelength 105 nm falls on a metal surface for which the work function is 5.00 eV. What is the minimum de Broglie wavelength of the photoelectrons emitted from this metal?
(h = 6.626 × 10-34 J ? s = 4.14 × 10-15 eV ? s, c = 3.00 × 108 m/s, mel = 9.11 × 10-31 kg, 1 eV = 1.60 × 10-19 J) A) 0.24 nm B) 0.33 nm C) 0.47 nm D) 0.66 nm E) 0.94 nm
If the magnitude of vector is less than the magnitude of vector , then the x component of is less than the x component of
Indicate whether the statement is true or false
If you face a cliff and give a shout, you will hear an echo. Are the sound waves of the echo inverted (A) or upright (B) compared to the waves of your original shout?
A. Inverted B. Upright