A rock is thrown from the roof of a building, with an initial velocity of 10 m/s at an angle of 30° above the horizontal. The rock is observed to strike the ground 43 m from the base of the building
What is the height of the building assuming no air resistance?
96 m
Physics & Space Science
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Which compound is the major component of table salt?
a. HC2H3O2 b. NH4Cl c. MgCO3 d. NaCl
Physics & Space Science
Which of the following occurs during an El Niño year?
A) Fishing catches improve along the South American coast. B) Cold water upwelling increases. C) The Trade winds become stronger. D) Storms increase on the western side of the Pacific.
Physics & Space Science
The speed of the electron in the Bohr theory of hydrogen is
a. proportional to n. b. proportional to n2. c. inversely proportional to n. d. inversely proportional to n2.
Physics & Space Science
The Milankovitch cycles are
What will be an ideal response?
Physics & Space Science