I apologize in advance if some of my answers don't quite make sense. I'm generally articulate, but not when it comes to physics I'm barely grasping.
I did a lab and part of it was dropping a magnet through a coil, which produced a Voltage vs Time graph using LabPro. For trial 1 we had the N...
Homework Statement
A moving proton has 6.4x10^-16 J of kinetic energy. The proton is accelerated by a potential difference of 5000 V between parallel plates.
http://members.shaw.ca/barry-barclay/Self-Tests/test09/elecst17.gif
The proton emerges from the parallel plates with what...
Thanks for the help. Not sure I followed it all exactly, and it was long past when it had to be handed in. I kind of gave him two papers and told him, "Take this one, no this one, wait, maybe this one" and he just took both so we'll see what happens. I don't know why my grasp of vectors is...
Ok so I found the difference in momentum for ball 1(.400kg) is 0.280kg m/s. Then I used that to find that ball 2's velocity is that divided by the mass (.500kg) to get 0.560m/s. Now I just need the direction. I know in a different question we assumed the y components were the same, so can I...
Yes I used the squared 0.500kg. Should I be using the 30, 60, 90 triangle made by the x and y components of the momentum of the .400kg ball?
I'm not sure how to use ball 1 to figure out ball 2's(the heavier one) direction.
This is all I have. Some one please please pleeeeeaaaase check this over and see if I'm in any way on the right track. I haven't had much sleep the past few days and am really stressing over my courses. This is a take home part of our unit test. I hope I did this right because it could really...
Homework Statement
A small explosive device slicing to the right breaks into two pieces. The momentum of fragment 1 after the explosion is 23kg.m/s 28°RCS
What is the momentum of fragment 2 after the explosion?
Homework Equations
PT=PT'
P=mv
Rx= Rcos∅
Ry= Rsin∅
R= √x2+y2
The...
Homework Statement
A mass moves in a circular path that has a radius of 24.6cm on a horizontal frictionaless surface. If the centripetal force acting on the mass is 96.5N, what is the kinetic energy of the mass?
r=0.246m
Fc=96.5N
Homework Equations
He told us to use these and "play...
So the acceleration would be negative and friction would influence it. I just don't know what to use to find Fnet, not knowing Fa. Is Fnet -4.0N ? The negative force of friction?
Homework Statement
A physics student slides a 2.0kg textbook along the laboratory bench to her friend. She imparts to the book an initial velocity of 2.70m/s. μ=0.20. How far away is her friend if the book comes to a stop right in front of her friend
Vi= 2.70m/s μ=0.20 m=2.0kg Vf= 0m/s...
I'm not having problems with the others, just when I need to find a mass with minimal info.
Fg1-FT=ma
Use the total mass of the system. The difference of force of gravity and tension on the rope would be the net force acting on the system.