Recent content by jbp890

1. Show that the area of the triangle contained between vector a and vector b and the red line is 1/2 |a x b| So far i have that bcosO would equal a ...and that 1/2bh should be the area... but I am stuck. can somebody help me prove?

thank you! can anyone else confirm?

I Keep Getting 2 Different Answers. Please Help! 1. Plane has a speed of 200 km/h and heads due north; though, 100 km/h northeast wind blows. what is the resulting velocity of plane w/ respect to ground? 2. I keep getting two different answers (I've approached them 2 different ways). I...

1. How do you find the current if it tells you how many electrons pass through cross section of a conductor each second 2. ... 3. ...I don't know the first thing to do about this. Just the number of electrons make me think of the equation Q = Ne ..but charge doesn't have to do with...

Let's say the mass of an object is given. Then the initial/final velocity of that object. If they also tell you the time for the motion to happen, what formula could you use to figure out the power created?

1. How do I draw a v-t graph to prove a scenerio where velocity and acceleration have opposite signs? 2. I know that by having opposite signs, it shows that the object is slowing down 3. Would it be a line with a negative slope? (thinking that the graph is just showing the quadrant I)