As an artillery shell travels from the gun to the target, the projectile's vertical speed changes, but its horizontal speed stays constant
a. True
b. False
Indicate whether the statement is true or false
True
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Process of Science: Explain the varied ways in which we continue to explore the Solar System
What will be an ideal response?
A black hole may be visible because electromagnetic radiation is emitted from an ________ surrounding it, heated up enough to emit X-rays
Fill in the blank(s) with correct word
Kepler's third law relates the square of the planet's orbital period in years to the cube of its average distance from the Sun in astronomical units
Indicate whether the statement is true or false
Along with the pH scale, there is the pOH scale, which indicates the level of "basicity" in a solution. Accordingly, pOH = -log[OH-]. What is the sum of the pH and the pOH of a solution always equal to?
A) the negative of the product of the hydronium and hydroxide ions B) the negative log of KW, which is 14 C) The sum would equal 7, since that would be neutral for pH and pOH. D) It is not constant because it depends on the acid/base solution in question.