# Recent content by ken62310

1. ### Conservative vector field or not?

for R3 you need to check all x: d/dy , d/dz y: d/dx, d/dz z: d/dx, d/dy
2. ### What is the maximum magnitude of the transverse speed of the string?

Homework Statement The wave function for a traveling wave on a taut string is (in SI units) the following equation. y(x, t) = (0.12 m)sin(6πt - 3πx + π/4) What is the maximum magnitude of the transverse speed of the string. I don't quite understand the question. Does it mean the speed...
3. ### What kind of job can i get with

A bachelor's degree in computer engineering? i just wonder .. is it easy to survive in America with that degree...?
4. ### A simple momentum question.

so all the angle stuff are useless in this case??
5. ### A simple momentum question.

oh...so for x: mv1 cos 37 and for y: mv1 cos 53 ? am i right?
6. ### A simple momentum question.

for x: mv1=mv2 cos67+ mv3 cos theta. for y: mv1=mv2 sin30+ mv3(37-theta). ... please tell me if i am correct..
7. ### A simple momentum question.

so that means i need to find the angle that formed by the 4i+3j right? now i have another question. I found that the angle of the 4i+3j would be 37 degree. and for x i will add that to the 30 degree right. then what about for the y? do i need to add the different angle? should it be respect to...
8. ### A simple momentum question.

i am not quite understand what you mean. how do i add the two angles? could you be more detailed?
9. ### A simple momentum question.

PHYSIC momentum QUESTION~ Homework Statement A billiard ball moving with velocity 4i+3j m/s strikes a stationary ball of the same mass. After the collision the struck ball moves with a speed of 4m/s at an angle of 30 degree with respect to the line of original motion of the striking ball...
10. ### How do I get a formula that finds the initial velocity with height in it?

How do I get a formula that finds the initial velocity with height in it?? How do I get a formula that finds the initial velocity with height in it?? i was doing a inclined plane problem with is deal with 2 steel balls' collision~ could somebody help me to derivate that formula?
11. ### A simple mechanic problem

can anyone help me on the second question? i found the part a is 1400 * 0.1 m = 140N, part b is 6.6m, part c is 14J, part d is but i don't know how to do the last two part.... help please!! is this correct? w=mgcos60 x 6.6m = 6.468 J.. i don't know which distance should i use~ 0.1m or 6.6m...
12. ### How to solve this question?

A projectile is launched from the edge of a 100m high vertical cliff at an angle of 30 degree below the horizontal. The projectile hits the ground at a distance of 50m from the bottom of the cliff. -Find the initial and final velocities of the projectile(magnitudes and directions). -Find total...