In space, a 4.0 kg metal ball moving 30. m/s has a head-on collision with a stationary 1.0 kg second ball. After the elastic collision, what are the velocities of the balls?
What will be an ideal response?
The first becomes 18. m/s, and the second acquires 48. m/s; both in the direction the first was moving.
Physics & Space Science
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Physics & Space Science
According to the following reaction, which molecule is acting as a base?
H2O + NH3 ? OH- + NH4+ A) H2O B) NH3 C) OH- D) NH4+ E) none of the above
Physics & Space Science
Three examples of a heat mover are __________, __________, and __________
Fill in the blank(s) with correct word
Physics & Space Science
During the Pleistocene ice age
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Physics & Space Science