(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A block of unknown material weighs 50 N in air and 20 N in water. What is the buoyant force of water?

2. Relevant equations

I know how to calculate density etc. I thought the formula to use was -density x V x g but it's not correct.

1. The problem statement, all variables and given/known data

A x Kg mass is attached to a horizontal spring of constant 20 N/m and set into harmonic motion with an amplitude = 0.2m. What is the total mechanical ernergy of the system?

I have no idea what to do... Some help would be greatly appreciated. Thanks!

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# Homework Help: Buoyancy and mechanical energy

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