Homework Answers
Option B the water level el in the pitcher remains same
A floating object displaces an amount of water equal to its own weight. Since water expands when it freezes, one ounce of frozen water has a larger volume than one ounce of liquid water
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A waiter in a restaurant fills a pitcher full of water and ice so that water...
2. One student at a restaurant asks for water with lots of ice, while another asks...
2. One student at a restaurant asks for water with lots of ice, while another asks for only a little ice. The waiter uses bottled water from the same bottle and ice from the same ice bucket to fill the order. There is still ice in both glasses when the water comes to thermal equilibrium Will the temperature of the water in the glass with only a little ice be (a) greater than (b) less than, or (c) the same...
ROUND ALL NUMERICAL ANSWERS TO 3 SIGNIFICANT FIGURES UNLESS OTHERWISE 15. Waiter is moving with a...
ROUND ALL NUMERICAL ANSWERS TO 3 SIGNIFICANT FIGURES UNLESS OTHERWISE 15. Waiter is moving with a speed of 12.0 m's through a normal ylindrical pipe with cross-sectional radius of 1 W π cm. The water gradally falls 10 m and at that point the pipe has become square, i.e. having a square cross section, with side of 7.5 mm (a) What is the speed at the lower level? (pay very careful atention to the unitst) (b) If the pressure at...
QUESTION 8 How does the internal energy of the ice and water mixture change if the...
QUESTION 8 How does the internal energy of the ice and water mixture change if the temperature does not rise while the ice is melting? It decreases, because you need to use energy to make a freezer run, but ice melts spontaneously. No enough information to determine. It increases, because it takes more energy for water molecules to be disordered than to be ordered. It remains the same, because both are at the same temperature. QUESTION 9 Suppose you start...
You drop an ice cube into an insulated container full of water and wait for the...
You drop an ice cube into an insulated container full of water and wait for the ice cube to completely melt. The ice cube initially has a mass of 80.0 g and a temperature of 0°C. The water (before the ice cube is added) has a mass of 660 g and an initial temperature of 20.0°C. What is the final temperature (in °C) of the mixture? (Assume no energy is lost to the walls of the container, or to the...
For the following questions, use the equation below for the water pressure as a function of...
For the following questions, use the equation below for the water pressure as a function of depth: P = (9800 Pa/m)*d + 101,300 Pa PART A: A cube of plastic that has dimensions of 1.8 m x 1.8 m x 1.8 m, is submerged in a tank of water such that the top surface of the cube is 1.8 m below the surface of the water. First, let's determine the water pressure acting on the top and bottom of the...
A tank is full of water. Find the work W required to pump the water out...
A tank is full of water. Find the work W required to pump the water out of the spout. (Use 9.8 for g.) W = J Enter an exact number. a=4 b = 4 C = 15 d = 4 | Om dm † a m 1 Cm When gas expands in a cylinder with radius r, the pressure P at any given time is a function of the volume V: P = P(V). The force exerted by the gas...
2. A container of ideal gas has a movable frictionless piston. This container is placed in a very large water bath and slowly compressed so that the temperature of the gas remains constant and equal to the temperature of the water. Which of the following
2. A container of ideal gas has a movable frictionless piston. This container is placed in a very large water bath and slowly compressed so that the temperature of the gas remains constant and equal to the temperature of the water. Which of the following statements about this gas are true for this process? (There may be more than one correct choice.) A) Heat leaves the gas during the compression. B) Since the gas and water are at the same...
3. (3 points) A tank of diameter D is filled with water up to a height...
3. (3 points) A tank of diameter D is filled with water up to a height h above the bottom of the tank (Figure 3). At the bottom of the tank is a hole of diameter d. Assume that the water flows out of the hole with a laminar flow and that the difference in atmospheric pressure between the top and the bottom of the tank is negligible Figure 3: A lank draining a) What speed will the water have...
EI. A Watched Pot... When heating water on a stove, a full pan of water takes...
EI. A Watched Pot... When heating water on a stove, a full pan of water takes longer to reach the boiling point than if the pan is half full. Why? Explain using the appropriate formula. E2. A Pressing Matter! We viewed a video of Rodrigo smacking the top of a bottle full of water with his palm. Then, the BOTTOM of the bottle broke and the water rushed out. WHY? did this happen? a. (10) Name and State the important...
.. .. .......... ............................................................................. LEARN MORE REMARKS Because a force on the eardrum of this magnitude...
.. .. .......... ............................................................................. LEARN MORE REMARKS Because a force on the eardrum of this magnitude is uncomfortable, swimmers often "pop their ears" by swallowing or expanding their jaws while underwater, an action that pushes air from the lungs into the middle ear. Using this technique equalizes the pressure on the two sides of the eardrum and relieves the discomfort. QUESTION Why do water containers and gas cans often have a second, smaller cap opposite the spout through which the...
2. One student at a restaurant asks for water with lots of ice, while another asks for only a little ice. The waiter uses bottled water from the same bottle and ice from the same ice bucket to fill the order. There is still ice in both glasses when the water comes to thermal equilibrium Will the temperature of the water in the glass with only a little ice be (a) greater than (b) less than, or (c) the same...
ROUND ALL NUMERICAL ANSWERS TO 3 SIGNIFICANT FIGURES UNLESS OTHERWISE 15. Waiter is moving with a speed of 12.0 m's through a normal ylindrical pipe with cross-sectional radius of 1 W π cm. The water gradally falls 10 m and at that point the pipe has become square, i.e. having a square cross section, with side of 7.5 mm (a) What is the speed at the lower level? (pay very careful atention to the unitst) (b) If the pressure at...
QUESTION 8 How does the internal energy of the ice and water mixture change if the temperature does not rise while the ice is melting? It decreases, because you need to use energy to make a freezer run, but ice melts spontaneously. No enough information to determine. It increases, because it takes more energy for water molecules to be disordered than to be ordered. It remains the same, because both are at the same temperature. QUESTION 9 Suppose you start...
A tank is full of water. Find the work W required to pump the water out of the spout. (Use 9.8 for g.) W = J Enter an exact number. a=4 b = 4 C = 15 d = 4 | Om dm † a m 1 Cm When gas expands in a cylinder with radius r, the pressure P at any given time is a function of the volume V: P = P(V). The force exerted by the gas...
3. (3 points) A tank of diameter D is filled with water up to a height h above the bottom of the tank (Figure 3). At the bottom of the tank is a hole of diameter d. Assume that the water flows out of the hole with a laminar flow and that the difference in atmospheric pressure between the top and the bottom of the tank is negligible Figure 3: A lank draining a) What speed will the water have...
EI. A Watched Pot... When heating water on a stove, a full pan of water takes longer to reach the boiling point than if the pan is half full. Why? Explain using the appropriate formula. E2. A Pressing Matter! We viewed a video of Rodrigo smacking the top of a bottle full of water with his palm. Then, the BOTTOM of the bottle broke and the water rushed out. WHY? did this happen? a. (10) Name and State the important...
.. .. .......... ............................................................................. LEARN MORE REMARKS Because a force on the eardrum of this magnitude is uncomfortable, swimmers often "pop their ears" by swallowing or expanding their jaws while underwater, an action that pushes air from the lungs into the middle ear. Using this technique equalizes the pressure on the two sides of the eardrum and relieves the discomfort. QUESTION Why do water containers and gas cans often have a second, smaller cap opposite the spout through which the...
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