Recent content by rburt

How would i do it using linear approximation?

I understand that the derivative is the surface area but I do not understand how that relates to the weight of the sphere. I also know that the rate at which the volume of a sphere increases when the radius r increases is the measure of the surface area if the sphere but I do not understand what...

Suppose a soccer ball is made of leather 1/8 in thick. If the outside diameter is 9 in, and the density of leather is assumed to be 0.64 oz/cubic in. Use the derivative of volume to get a linear approximation to figure the weight of the ball (assume the ball is spherical). Work already done...

Homework Statement Both H and He+ atoms contain a nucleus and a single electron. Therefore He+ is often referred to as Hydrogen-like. According to the Bohr Model, the electron in He+ should orbit the nucleus in discrete orbits, much like the electron in the Hydrogen atom orbits its nucleus...

I do know that nλ=2πr(or the circumference). I know the energy states and the radii of each state, but would this give me the wavelength (λ)?

I know that λ=h/p, but how do you find the wavelength of electrons from different quantum levels using the circumference of the electron's orbit?