Question
PRemastered
Learning Goal: To make the connection between intuitive understanding of a seesaw and the standard formalism for torque. This problem deals with the concept of torque, the “twist” that an off-center force applies to a body that tends to make it rotate.
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General Physics 7 years 1 Answer 3900 views

Question
I have been thinking about gravity and magnetic force, and seeing that these two forces have a field, does their field ever finish. For example, the Earth’s gravity field weakens the further you go from the Earth, but ...
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General Physics 7 years 1 Answer 888 views

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Question
PRemastered
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 7 years 1 Answer 11020 views

Question
PRemastered
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 7 years 1 Answer 8596 views

Question
PRemastered
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 7 years 1 Answer 8184 views

Question
PRemastered
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 7 years 1 Answer 7498 views

Question
PRemastered
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 7 years 1 Answer 6941 views