Hey, I'm having problems with this question:
According to Newton's law of cooling, what cools faster, a person from 150 degress celcius to 100 degrees celcius or 100 degrees celcius to 50 degrees celcius in a laboratory environment? Why?
I' not really sure where to start.
I know the...
I completely agree with you! I'm a university student taking introductory physics and I've never been really strong with the conceptionalization and the thinking process that goes along with this course. I find memorizing formulas as comforting because I think that I've leaned something when in...
so from the vf^2 = 2ad equation, I can find the height by isolating d getting vf^2/2a
But now where I'm confused at with this is how do i find the height if i do not know the final velocity?
the question that i have just states that they wasnt to know what heights the 3 ball bearings should be dropped from so that at impact all 3 have the same velocity.
I don't think that it matters whether or not they land at the same time, just the same velocity, or that's what it seems like to me
Homework Statement
Consider 3 ball bearings, one with a mass of 8g, one with 16g, and one with 32 g. What heights should the 3 ball bearings be dropped from so that all 3 ball bearings have the same velocity?
Homework Equations
I think that the relevant equation would be:
vf^2= vi^2...
okay, I'm starting to see how it's done and how I've mixed up my FBD. I think I just need to practice some more problems.
I rearanged the m1a=usm1g to a=usm1g/m1
i then substituted this value for a into:
Fapplied=m2a+usm1g
Thanks so much for your help, I really appreciated it! Now...
okay, I'm starting to see how it's done and how I've mixed up my FBD. I think I just need to practice some more problems.
I rearanged the m1a=usm1g to a=usm1g/m1
i then substituted this value for a into:
Fapplied=m2a+usm1g
Thanks so much for your help, I really appreciated it! Now...
okay, I'm starting to see how it's done and how I've mixed up my FBD. I think I just need to practice some more problems.
I rearanged the m1a=usm1g to a=usm1g/m1
i then substituted this value for a into:
Fapplied=m2a+usm1g
Thanks so much for your help, I really appreciated it! Now...
okay, I'm starting to see how it's done and how I've mixed up my FBD. I think I just need to practice some more problems.
I rearanged the m1a=usm1g to a=usm1g/m1
i then substituted this value for a into:
Fapplied=m2a+usm1g
Thanks so much for your help, I really appreciated it! Now...
okay, I'm starting to see how it's done and how I've mixed up my FBD. I think I just need to practice some more problems.
I rearanged the m1a=usm1g to a=usm1g/m1
i then substituted this value for a into:
Fapplied=m2a+usm1g
Thanks so much for your help, I really appreciated it! Now...
okay so would this make the horizontal component of the FBD for the board:
max=Fapplied,x - Ffriction,x
(m1+m2)a=Fapplied,x-usm2g,x
a=Fapplied,x-usm2g,x/(m1+m2)