The reason a fired cannonball maintains its horizontal component of velocity, barring air resistance, is that
A. the absence of a vertical component of velocity.
B. no forces act on it.
C. no horizontal forces act on it.
D. all of the above
Answer: C
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Why might increasing the concentration of a set of reactants increase the rate of reaction?
A. You have increased the ratio of reactants to products. B. You have increased the chances that any two reactant molecules will collide and react. C. The concentration of reactants is unrelated to the rate of reaction. D. The rate of reaction depends only on the mass of the atoms and therefore increases as you increase the mass of the reactants. E. none of the above
Our solar system is located towards the middle of the Milky Way galaxy
Indicate whether the statement is true or false
How are the landforms common to North America's intermontane physiographic province different from those that are visible in the Great Plains province?
What will be an ideal response?
What do we call someone who makes maps?
a) Geographer b) Surveyor c) Cartographer d) Engineer