Recent content by lampshader

I'm afriad I might be doing something wrong..Let me show exactly what I do step by step: I am translating the object to the origin using the stack: [1__0__0__2]__[1____0__ _____0____0]___[1__0__0__-2]__[x] [0__1__0__4]__[0___cos80__-sin80___0]___[0__1__0__-4]__[y]...

Homework Statement Suppose that you want to rotate 80 degrees a cube in three dimensional space centered at the point C(2,4,5) about the x-axis. In other words, you want a pitch 80 degrees centered at the point C(2,4,5). Suppose that you want to rotate a vertex of the cube, the point (x,y,z)...

Alright, in continuation to the original problem: A shape is defined by the following vertices: (40,85), (15,0), and (-40,35) Is it a right triangle? I think that each point is a vector for a side of the potential right triangle. We can use the following vector formula...

1. Homework Statement A triangle is defined by the following vertices: (40,85), (15,0), and (-40,35). Is it a right triangle? Just wondering if what i have here is correct: d(x,y) = sqrt((x2-x1)^2+(y2-y1)^2) = sqrt((85-40)^2+(0-15)^2) = sqrt((45)^2+(-15)^2) = sqrt(2025+225) = 47.43...

Okay, basically using my three points as a, b, and c, where, a(40,85), b(15,0), and c(-40,35). using c^2 = a^2 + b^2 \Deltac^2 = \Deltaa^2 + \Deltab^2 ??

Homework Statement A triangle is defined by the following vertices: (40,85), (15,0), and (-40,35). Is it a right triangle? Homework Equations Distance Formula: Given two points A(1,2) and B(3,4) Find the distance using the below forumla. d(A,B) = sqrt((x2-x1)^2 + (y2-y1)^2)...

That just doesn't seem right to me. I am not even sure if the equation is the right one to use.

Hmm. I never had this problem before.. I would use U = 1/2C(Delta V) ^2 U / Delta V^2 = 1 / 2C 1 / Delta V^2 = U / 2C Delta V^2 = 2C / U Delta V = sqrt( 2C / U ) But what are C and U? C = 900J and U = 9iF?? so V = sqrt( 2*900J / 9iF ) = 14.14 J/iF?

Homework Statement A defibrillator is used to restart a person's heart after it stops beating. Energy is delivered to the heart by discharging a capacitor through the body tissues near the heart. If the capacitance of the defibrillator is 9 ìF and the energy delivered is to be 300 J, to what...

Its their linear speed. Because the further you are from the center, the higher velocity that you'll have.

Homework Statement Two children ride on a Merry-go-round. One is 2 m from the axis of rotation and the other is 4m from it. Which child has the larger; I. linear speed II. acceleration III. angular speed and IV. angular displacement Homework Equations 1) Linear Speed: v =...

Homework Statement A bound quark-antiquark pair is a ________ while a bound quark triplet is a ________ Homework Equations The Attempt at a Solution I think that a bound quark-antiquark pair is a baryon while a bound quark triplet is a meson. Where can I find a mathematical...

Yes, the object is the source of the light beam, my lab environment does not have a scale, so I don't know whehter the convex lens is inches, meters, or even how many feet it may be away from the object (light beam). I do have some data. the object (light) has the coordinates: x = 23.2...

Homework Statement Can you move the object and the lens in such a way that the image is virtual? If so, relate where the object is with respect to the focal length of the lens Homework Equations 1/f =1/p +1/q or f = (p + q)^-1 The Attempt at a Solution What I can do, is add...

Homework Statement Is it possible to move an object and a lens in such a way that the image is virtual? The Attempt at a Solution Well I could use a convex lens, and shine a light into it, then something would happen. The light would be angled up or angled down (depending on the...