Can we just take a moment to thank this awesome person! Going into Physics as older student who hasn't taken physics yet, I looked at the first few chapters of Kaplan and nearly ripped my hair out. I even said I'll just roll with luck and hope I won't have much physics on my C/P section. You made that dry textbook make sense! Thank you!
I am glad you are making these videos. I remember when i was studying for the MCAT, the Fluids Topic (and knowing all the equations in that topic) was never covered in my undergraduate first semester physics course. So i had to self study for the Fluids Topic. It really is just knowing few extra formulas and the units are a MUST!
yooo omg van so I was doing the guided examples in the kaplan book for fluids and before i was confused bout the concept i watched ur video and drew the same system example u gave in this video it was beautiful because after watching i was legit able to answer the guided example question on MY OWN AND GOT IT CORRECT. it felt soo good cause physics is legit my weakest subject i guess what I'm tryna say is keep up the good work and fr you outchea saving ppl caus this physics book without ur videos is like tryna read mandarin
For anyone confused as to why Fg = the buoyant force here is why: Think of it in terms of net force. Say an object is less dense than water, which means it will float and sit still on top of the water. The forces acting on the object is the force of gravity pulling it down (Weight or Fg) and the Buoyant force (Fb or pvg). Since the object is floating, the buoyant force is greater than the weight force. Since the object is floating in the water, Fb is greater than W. So, in terms of the net force of the object, the equation will be F=Fb-W. Now, since the object is not moving it has an acceleration of zero and since F=mass*acceleration, F in the equation above is zero. So now we have 0=Fb-W. Moving the W over gives us... W = Fb, or the weight of the object is equal to the buoyant force. If you wanted to calculate it, just sub in W and Fb with what they are equivalent with: mg = pvg Hope this helps!!!
Math in physics is my enemy, I never can understand the relationship just by reading it. BUT, I love your videos, its super concise and straight to the point and it really helps. Thank you for doing this!
Hi, I don't know if you'll be able to answer this (if not its totally okay), I was just wondering what it means that the continuity equation is a conservation of mass (as opposed to energy)? I know that bernoulli's equation takes into account the conservation of energy so Im just wondering what the difference is. Also love your vids!
These videos are a game changer. I'm writing at the end of July and have had such a hard time with physics, but you make it so easy! I've been doing much better in my practice since I started watching. Thank you so much!!!
