Suppose a baseball travels 425 ft (130 m) from where the batter hits it to where it lands in the stands. The ball’s velocity makes an angle of 40° with respect to the horizontal as the ball leaves the bat. Suppose we first calculate the ball’s initial speed ignoring drag and find it to be . Including drag might plausibly require a higher initial speed for the ball to travel the same horizontal distance. On the other hand, by slowing down the ball’s vertical motion, including drag will increase the ball’s flight time, allowing the ball the same distance with a slower horizontal velocity. So if we include drag, for the ball to fly the same horizontal distance will we need
A. An initial speed greater than 
.
B. An initial speed less than .
C. An initial speed equal to .
D. More information to answer for sure.
A. An initial speed greater than .
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A tiny object carrying a charge of +3.00 ?C and a second tiny charged object are initially very far apart
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Fill in the blank(s) with the appropriate word(s).
One reason Earth's atmosphere contains substantially less carbon dioxide than Venus because carbon dioxide dissolves in water and is carried by rain to the surface where it reacts with rocks and forms carbonates.
Answer the following statement true (T) or false (F)