Quick and Simple Physics Questions for Urgent Help

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To receive help with physics questions, it's essential to pay attention in class, study diligently, and avoid procrastination. When seeking assistance, common courtesy is important, and individuals should not expect others to complete their work for them. Participants are encouraged to show their thought process and any work done so far to facilitate effective guidance. The forum emphasizes that answers will not be provided outright; instead, users should engage in a collaborative learning process. Following these guidelines will enhance the likelihood of receiving helpful support.
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URGENT Easy Physics Questions

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1. Pay attention in class.

2. Study.

3. Don't procrastinate.

4. Use common courtesy when asking others for help.

5. Don't expect people to do your work for you, especially after failing to follow 1-4.
 
Welcome to the PF, dollafield. Please click on the "Rules" link at the top of the page to familiarize yourself with how the PF Homework Help works. We do not provide answers here -- you must do the work. In fact, you must show your thoughts and work so far, in order for us to provide tutorial help.

So tell us what your approach and work so far are on each of the problems, and we'll try to guide you along a bit.
 

Thread 'Magnitude of buoyant force in fluids of different densities'

The book claims the answer is that all the magnitudes are the same because "the gravitational force on the penguin is the same". I'm having trouble understanding this. I thought the buoyant force was equal to the weight of the fluid displaced. Weight depends on mass which depends on density. Therefore, due to the differing densities the buoyant force will be different in each case? Is this incorrect?
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