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Problem 1. Part (a) You are in deep outer space, far away from any massive objects. You have two boxes, one of which is filled with lifesaving food while the other is empty. Unfortunately, you only have the means to open one of the boxes! But luck is on your side: you took PHYS 102! Using your conceptual understanding of physics, how will you determine which box to open? Part (b) An office has a 4-m x 5-m floor. If the total downward force on the floor is 2.2×106 N, then what is the air pressure in the room? Part (c) In which of the following scenarios is the total mechanical energy of the system conserved? Any objects that are underlined are included the system. There may be more than one correct answer, circle all that apply. (a) A plastic ball submerged in water floats to the surface. (b) A ballistic collides with and sticks to a pendulum. The two objects move together. (c) The Moon completes a full revolution around the Earth. (d) A ball sitting on the bottom of an incline compresses a spring. It is released and rolls without slipping up the ramp. Part (d) You put oil (p = 850 kg/m³) and water (p = 997 kg/m³) in the same container. After enough time passes, which liquid will be on top? Defend your reasoning. Part (e) A uniform rod is able to rotate freely about a its pivot point. A rope is attached to the other end of the rod and holds it up perfectly vertical, as shown in the picture below. If the rod is in static equilibrium, draw a qualitatively correct free body diagram for it. 20 Pivot Point 75 cm

Problem 1. Part (a) You are in deep outer space, far away from any massive objects. You have two boxes, one of which is filled with lifesaving food while the other is empty. Unfortunately, you only have the means to open one of the boxes! But luck is on your side: you took PHYS 102! Using your conceptual understanding of physics, how will you determine which box to open? Part (b) An office has a 4-m x 5-m floor. If the total downward force on the floor is 2.2×106 N, then what is the air pressure in the room? Part (c) In which of the following scenarios is the total mechanical energy of the system conserved? Any objects that are underlined are included the system. There may be more than one correct answer, circle all that apply. (a) A plastic ball submerged in water floats to the surface. (b) A ballistic collides with and sticks to a pendulum. The two objects move together. (c) The Moon completes a full revolution around the Earth. (d) A ball sitting on the bottom of an incline compresses a spring. It is released and rolls without slipping up the ramp. Part (d) You put oil (p = 850 kg/m³) and water (p = 997 kg/m³) in the same container. After enough time passes, which liquid will be on top? Defend your reasoning. Part (e) A uniform rod is able to rotate freely about a its pivot point. A rope is attached to the other end of the rod and holds it up perfectly vertical, as shown in the picture below. If the rod is in static equilibrium, draw a qualitatively correct free body diagram for it. 20 Pivot Point 75 cm

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Problem 1. Part (a) You are in deep outer space, far away from any massive objects. You have two boxes, one of which is filled with lifesaving food while the other is empty. Unfortunately, you only have the means to open one of the boxes! But luck is on your side: you took PHYS 102! Using your conceptual understanding of physics, how will you determine which box to open? Part (b) An office has a 4-m x 5-m floor. If the total downward force on the floor is 2.2×106 N, then what is the air pressure in the room? Part (c) In which of the following scenarios is the total mechanical energy of the system conserved? Any objects that are underlined are included the system. There may be more than one correct answer, circle all that apply. (a) A plastic ball submerged in water floats to the surface. (b) A ballistic collides with and sticks to a pendulum. The two objects move together. (c) The Moon completes a full revolution around the Earth. (d) A ball sitting on the bottom of an incline compresses a spring. It is released and rolls without slipping up the ramp. Part (d) You put oil (p = 850 kg/m³) and water (p = 997 kg/m³) in the same container. After enough time passes, which liquid will be on top? Defend your reasoning. Part (e) A uniform rod is able to rotate freely about a its pivot point. A rope is attached to the other end of the rod and holds it up perfectly vertical, as shown in the picture below. If the rod is in static equilibrium, draw a qualitatively correct free body diagram for it. 20 Pivot Point 75 cm
Transcribed Image Text:Problem 1. Part (a) You are in deep outer space, far away from any massive objects. You have two boxes, one of which is filled with lifesaving food while the other is empty. Unfortunately, you only have the means to open one of the boxes! But luck is on your side: you took PHYS 102! Using your conceptual understanding of physics, how will you determine which box to open? Part (b) An office has a 4-m x 5-m floor. If the total downward force on the floor is 2.2×106 N, then what is the air pressure in the room? Part (c) In which of the following scenarios is the total mechanical energy of the system conserved? Any objects that are underlined are included the system. There may be more than one correct answer, circle all that apply. (a) A plastic ball submerged in water floats to the surface. (b) A ballistic collides with and sticks to a pendulum. The two objects move together. (c) The Moon completes a full revolution around the Earth. (d) A ball sitting on the bottom of an incline compresses a spring. It is released and rolls without slipping up the ramp. Part (d) You put oil (p = 850 kg/m³) and water (p = 997 kg/m³) in the same container. After enough time passes, which liquid will be on top? Defend your reasoning. Part (e) A uniform rod is able to rotate freely about a its pivot point. A rope is attached to the other end of the rod and holds it up perfectly vertical, as shown in the picture below. If the rod is in static equilibrium, draw a qualitatively correct free body diagram for it. 20 Pivot Point 75 cm
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