Consider a velocity with components 36. m/s Westward and 22. m/s Northward. What is its magnitude and direction?
What will be an ideal response?
42. m/s at 31.° North of West
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A rock sample from the moon includes a mineral that contains small amounts of the radioactive isotope Potassium-40 and its daughter element Argon-40 (half-life of 1.3 billion years). This mineral would not form with any Argon-40
Consider a crystal with 7 atoms of Argon-40 for every 1 atom of Potassium-40. How many atoms of Potassium-40 were present when the crystal formed for each atom of Potassium-40 that exists today? A) 1 B) 7 C) 8 D) None
A wave front is not a surface of constant phase within a wave
Indicate whether the statement is true or false
A hydrogen atom in the ground state absorbs a 12.75-eV photon. To what level is the electron promoted? (The ionization energy of hydrogen is 13.6 eV)
a. n = 2 c. n = 5 b. n = 3 d. n = 4
Identify the locations of Earth's water, both oceanic and fresh
What will be an ideal response?