Recent content by element41$

Homework Statement A Lens maker desires to make a lens of focal length 30 cm. in air. The equipment in the shop is set to make lens faces of 20 cm. a. What index of refraction should the lens material have to produce this focal length? b. What would the focal length of this lens be...

Homework Statement Two plane mirrors are joined along side at a right angle. Both are perpendicular to the table top, like walls meeting at a corner. For a general angle of theta, determine the direction of the reflected ray which leaves the double mirror? Homework Equations n/a...

Why do electronic devices such as calculators and tv remotes send frequencies that can be picked up on am radios?

What happens when driving frequency equals resonance frequency?

I know the template needs to be used but i don't want answers i need help starting this. What equation do i use? Here is the question: In a particular region of space, the magnetic and electric fields have energy densities of 0.2 J/m3 and 4 J/m3 , respectively. Calculate the strength...

I actually get 5.10x 10^-12 for insulin and 6.44x 10^-11 for lysozyme The other answers were 1/R not R Is this correct because the are "effective"radius?

Homework Statement One tool in analyzing proteins is gel diffusion. The technique is used to determine the size of the protein being analyzed. The following values are for diffusion through agarose gel. D (m2/s) Lysozyme 1.18E-10 BSA 3.90E-11 adolase 6.50E-11 Cu2+ 1.00E-10 glucose...