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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An object is dropped from a tower, 400 ft above the ground. the object's height above ground t seconds after the fall is s(t)equals400 minus 16 t squared. determine the velocity and acceleration of the object the moment it reaches the ground. the velocity of the object the moment it reaches the ground is nothing ft/s.

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Under the action of a constant force an object accelerates at 7.8 m/s2. what will the acceleration be if (a) the force is halved? (b) the object's mass is halved? (c) the force and the object's mass are both halved? (d) the force is halved and the object's mass is doubled?