According to Pascal\'s principle, if you increase the pressure enough so that th

Question

According to Pascal's principle, if you increase the pressure enough so that the force at one end of an oil-filled lube increases by 10 N, the force will increase at all points in the tube by 10 N. True False Water flows through a pipe having a varying width. More water flows pet second through the wide section than through the narrow section because there is more room for it to flow. True False At the speed of a moving fluid increases, the pressure in the fluid increases. remains constant. decreases. may increase or decrease, depending on the density of the fluid A board that is 20.0 cm wide, 5.00 cm thick and 3.00 m long has a density 650 kg/m^3. The board is floating partially submerged in water of density 1000 kg/m^3. What fraction of the volume of the board is above the surface of the water? 0.350 0.650 zero 0.200 The answer depends on which edge of the board is vertical. Water flowing through a pipe suddenly comes to a section of pipe where the pipe diameter decreases to 75% of its previous value. If the speed of the water in the larger section of the pipe was 36 m/s. what is its speed in this smaller section? 75 m/s 64 m/s 49 m/s 42 m/s none of these The graph in the figure shows the force on an object as a function of the elongation caused by that force. Which statement about this object is true? The object obeys Hooke's law at all points from A to C. The object obey s Hooke's law at all points from B to C. The object obey s Hooke's law at all points from A to B. The elastic limit occurs at point C. The region of elastic behavior occurs front B to C. A restoring force of magnitude F acts on a system with a displacement of magnitude x. In which of the following cases will the system undergo simple harmonic motion? F squareroot x F sin x F x^2 F x F 1/x

Explanation / Answer

1. A)True

2. B)False

3. A) increases

4.

5. e) NONE OF THESE

6. C) the object obeys Hooke's law at all point from A to B

7.d) F proportional x

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