Question
Two sections of a train track are 1 mile each. They are attached to each other forming a straight line. Each track expands 1.00 ft in length under the hot sun causing the track to buckle. If each ...
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General Physics 3 years 1 Answer 488 views

Question
A sign is to be hung from the end of a thin pole, and the pole supported by a single cable. Your design firm brainstorms the six scenarios shown below. In scenarios A, B, and D, the cable is attached ...
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General Physics 3 years 1 Answer 8083 views

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Learning Goal: To understand and apply the formula τ =Iɑ to rigid objects rotating about a fixed axis. To find the acceleration ɑ of a particle of mass m, we use Newton’s second law: , where 
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General Physics 3 years 1 Answer 6397 views

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Six automobiles are initially traveling at the indicated velocities. The automobiles have different masses and velocities. The drivers step on the brakes and all automobiles are brought to rest. A) Rank these automobiles based on their momentum before the brakes are ...
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General Physics 3 years 1 Answer 6368 views

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The figure shows a simple model of a seesaw. These consist of a plank/rod of mass mr and length 2x allowed to pivot freely about its center (or central axis), as shown in the diagram. A small sphere of mass m1 is attached to ...
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General Physics 3 years 1 Answer 5251 views

Question
A 6.0-cm-diameter horizontal pipe gradually narrows to 4.5 cm. When water flows through this pipe at a certain rate, the gauge pressure in these two sections is 33.5 kPa and 22.6 kPa, respectively.What is the volume rate of flow?
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General Physics 3 years 1 Answer 4702 views