Physics of Everyday Phenomena
9th Edition
ISBN: 9781260048469
Author: Griffith
Publisher: MCG
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Chapter 9, Problem 14E
A stream moving with a speed of 3.5 m/s reaches a point where the cross-sectional area of the stream decreases to one half of the original area. What is the water speed in this narrowed portion of the stream?
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A collection of electric charges that share a common magnitude q (lower case) has been placed at the corners of a square, and an additional charge with magnitude Q (upper case) is located at the center of that square. The signs of the charges are indicated explicitly such that
∣∣+q∣∣∣∣+Q∣∣=∣∣−q∣∣==∣∣−Q∣∣=qQ
Four unique setups of charges are displayed. By moving one of the direction drawings from near the bottom to the bucket beside each of the setups, indicate the direction of the net electric force on the charge with magnitude Q, located near the center, else indicate that the magnitude of the net electric force is zero, if appropriate.
A number of electric charges has been placed at distinct points along a line with separations as indicated. Two charges share a common magnitude, q (lower case), and another charge has magnitude Q(upper case). The signs of the charges are indicated explicitly such that
∣∣+q∣∣∣∣+Q∣∣=∣∣−q∣∣==∣∣−Q∣∣=qQ
Four different configurations of charges are shown. For each, express the net electric force on the charge with magnitude Q (upper case) as
F⃗E=FE,xî
where the positive x direction is towards the right. By repositioning the figures to the area on the right, rank the configurations from the most negative value to the most positive value of FE,x.
Chapter 9 Solutions
Physics of Everyday Phenomena
Ch. 9 - Is it possible for a 100-lb woman to exert a...Ch. 9 - If we measure force in pounds (lb) and distance in...Ch. 9 - The same force is applied to two cylinders that...Ch. 9 - A penny and a quarter are embedded in the concrete...Ch. 9 - Prob. 5CQCh. 9 - The fluid in a hydraulic system pushes against two...Ch. 9 - If the output piston in a hydraulic pump exerts a...Ch. 9 - When a mercury barometer is used to measure...Ch. 9 - Could we use water instead of mercury to make a...Ch. 9 - Prob. 10CQ
Ch. 9 - Could we use water instead of mercury to make a...Ch. 9 - If you climbed a mountain carrying a mercury...Ch. 9 - If you filled an airtight balloon at the top of a...Ch. 9 - When you go over a mountain pass in an automobile,...Ch. 9 - The plunger of a sealed hypodermic syringe...Ch. 9 - Helium is sealed inside a balloon impermeable to...Ch. 9 - Is it possible for a solid metal ball to float in...Ch. 9 - A rectangular metal block is suspended by a string...Ch. 9 - Is it possible for a boat made of concrete to...Ch. 9 - A block of wood is floating in a pool of water. a....Ch. 9 - A large bird lands on a rowboat that is floating...Ch. 9 - Is it possible that some objects might float in...Ch. 9 - A rowboat is floating in a swimming pool when the...Ch. 9 - If an object has a smaller density than water,...Ch. 9 - A steady stream of water flowing in a narrow pipe...Ch. 9 - Why does the stream of water flowing from a faucet...Ch. 9 - Does a stream of liquid with a high viscosity flow...Ch. 9 - If the speed of flow in a stream decreases, is the...Ch. 9 - Why is the flow of smoke from a cigarette often...Ch. 9 - If you blow between two limp pieces of paper held...Ch. 9 - A wind gust blows sideways across an...Ch. 9 - A hair dryer can be used to create a stream of...Ch. 9 - Prob. 33CQCh. 9 - Does the path of a curveball really curve? (See...Ch. 9 - A force of 60 N pushes down on the movable piston...Ch. 9 - A 150-lb woman puts all of her weight on one heel...Ch. 9 - A 270-lb man supports all of his weight on a...Ch. 9 - Prob. 4ECh. 9 - In a hydraulic system, a force of 540 N is exerted...Ch. 9 - The load-bearing piston in a certain hydraulic...Ch. 9 - A column of water in a vertical pipe has a...Ch. 9 - With the temperature held constant, the pressure...Ch. 9 - With the temperature held constant, the piston of...Ch. 9 - A 0.52-kg block of wood is floating in water. What...Ch. 9 - A block of wood of uniform density floats so that...Ch. 9 - A certain boat displaces a volume of 8.3 m3 of...Ch. 9 - A rock with a volume of 0.3 m3 is fully submerged...Ch. 9 - A stream moving with a speed of 3.5 m/s reaches a...Ch. 9 - Water emerges from a faucet at a speed of 1.5 m/s....Ch. 9 - An airplane wing with an average cross-sectional...Ch. 9 - Suppose the input piston of a hydraulic jack has a...Ch. 9 - Prob. 2SPCh. 9 - A copper block with a density of 8960 kg/m3 is...Ch. 9 - A flat-bottomed wooden box is 2.8 m long and 1.3 m...Ch. 9 - A pipe with a circular cross-section has a...
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