A large pipe (diameter = 0.080m) is coupled by a watertight fitting to a smaller pipe (diameter = 0.025m). If the water velocity in the large pipe is equal to 0.50 m/s, what is the water velocity in the small pipe? Choices:
-3.7 m/s

-4.4 m/s

-5.8 m/s

-5.1 m/s

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What causes the formation of ocean currents?

Astone is dropped from the upper observation deck of a tower, 250 m above the ground. (assume g = 9.8 m/s2.) (a) find the distance (in meters) of the stone above ground level at time t. h(t) = (b) how long does it take the stone to reach the ground? (round your answer to two decimal places.) s (c) with what velocity does it strike the ground? (round your answer to one decimal place.) m/s (d) if the stone is thrown downward with a speed of 2 m/s, how long does it take to reach the ground? (round your answer to two decimal places.) s

On mars a rock falls an unknown vertical distance from a resting position and lands in a crater. if it takes the rock 2.5 seconds to fall, how high is the cliff the rock fell from? mars' surface gravity is 3.8 m/s2. a. 9.5 m b. 11.9 m c. 15.2 m d. 23.8 m