A thin rectangular piece of wood floats in

A thin rectangular piece of wood floats in water. You slowly pour oil with a density equal to that of the wood on the surface of the water until the height of the oil above the water is three times larger than the height of the piece of wood. Which statement is correct? Select the correct answer. 1. The wood floats on top of the oil, so it sticks up in the air The wood does not change its position The wood sinks below the surface of the water The wood is half in the water and half in the oil The wood floats in the oil just above the water 2. 3. 4. 5. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

An empty spice bottle has an inner volume of 1. 38 x 10 -4 m 3. It has a mass of 110 g when filled with air, and it displaces 1. 63 x 10 -4 m 3 of water when fully submerged. What fraction of the total volume of the bottle will be beneath the surface when it is placed in a tank of water? (ρwater = 1. 00 x 103 kg/m 3) Select the correct answer. 1. 2. 3. 4. 5. 0. 67 0. 60 0. 87 0. 94 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

People can snorkel down to a depth of 0. 8 meters. This means that the maximum pressure their lungs can exert on the air they expel is roughly _____. (ρwater = 1. 00 x 103 kg/m 3) Select the correct answer. 1. 2. 3. 4. 5. 7, 800 N 7, 800 Pa 7, 800 ATM 15, 600 N/m 2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

Air within the funnel of a large tornado may have a pressure of only 0. 4 ATM. What is the approximate outward force on a (7. 0 x 11. 0 m) wall if a tornado suddenly envelops the house? (1 ATM = 105 N/m 2) Select the correct answer. 1. 2. 3. 4. 5. 5 x 106 N 4 x 108 N 9 x 105 N 5 x 107 N 5 x 102 N 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

A waiter in a restaurant fills a pitcher full of water and ice so that water would spill out if any more were added. As the ice starts to melt _____. Select the correct answer. 1. 2. 3. 4. 5. the water level in the pitcher falls the water level in the pitcher remains the same water starts to flow out the spout of the pitcher the pressure on the bottom of the pitcher decreases the pressure on the bottom of the pitcher increases 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

When water freezes, it expands about 9 percent. How much would be the pressure increase inside your automobile engine block if the water in there froze? The bulk modulus of ice is 2. 0 x 109 N/m 2, and 1 ATM = 1 x 105 N/m 2. Select the correct answer. 1. 2. 3. 4. 5. 1. 800 ATM 18 ATM 1. 580 ATM 970 ATM 560 ATM 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

The pressure inside a commercial airliner is maintained at 1 ATM (105 N/m 2). What is the outward force exerted on a 1. 3 m x 1. 0 m cabin door if the outside pressure (at an altitude of 10 km) is 0. 29 ATM? Select the correct answer. 1. 2. 3. 4. 5. 0. 9 x 105 N 0. 9 x 1010 N 0. 9 x 104 N 0. 6 x 106 N 1. 9 x 102 N 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

What is the total mass of the Earth's atmosphere? The radius of the Earth is 6. 4 x 106 m, and 105 N/m 2 = 1 ATM. Select the correct answer. 1. 2. 3. 4. 5. 5 x 1018 kg 5 x 1014 kg 5 x 1021 kg 1 x 1016 kg 1 x 1018 kg 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

The siphon shown is used to transfer liquid from a higher level to a lower level. If the fluid is drawn up and is continuous through the tube, determine the velocity of flow of gasoline if the vertical distance from the liquid surface to the outlet is 1. 0 m. Select the correct answer. 1. 2. 3. 4. 5. 4. 4 m/s 3. 3 m/s 2. 2 m/s 7. 8 m/s 3. 9 m/s 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

Two identical fish, both at sea level, float in two identical aquariums with identical quantities of water. Fish A is in Alaska, so it weighs more than fish B at the equator, since g is larger at sea level in Alaska. Which statement is correct. Select the correct answer. 1. A comparison is impossible unless they are both floating at the same level Fish A displaces a greater quantity of water than fish B Fish B displaces a greater quantity of water than fish A They both displace the same quantity of water Fish A has a smaller acceleration than Fish B when equal horizontal forces are applied to each, because Fish A weighs more 2. 3. 4. 5. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

How much power is theoretically available from a mass flow of 900 kg/s of water when it falls a vertical distance of 110 meters? Select the correct answer. 1. 2. 3. 4. 5. 970 k. W 97 k. W 770 W 920 W 970 W 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

All people come very close to being able to float in water. What therefore is the volume (in cubic meters) of a 67 kg woman? Select the correct answer. 1. 2. 3. 4. 5. 0. 067 0. 082 0. 008 0. 107 0. 084 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50