Marium

Electrons are ejected from a photoelectric cell with a maximum kinetic energy of 1.20 eV. If the incident light has a wavelength of 410nm, what is the work funtion?

Q)1 : Alpha particles travel through a magnetic field of 0.360T and are deflected in an arc of 0.0820m. Assuming the alpha particle are perpendicular to the field, what is the energy of an individual alpha particle?

I have solved the following question but i am not sure whether it is right or wrong.. Calculate the molar heat of reaction for the NaOH(aq) using the data obtained from this experiment. (this is a neutralization question) H2so4 Volume= 30ml Concentration=...

If a metal with a threhold frequency of 1.1 x 10^15 Hz is illuminated by light with a wavelength of 170 nm, then the maximum kinetic energy of the emitted photoelectron will be? this is my solution: h= 6.63 x 10^ -34 J.s c = 3 x 10^8 m/s Wavelength= 1.7 x...

An oil droplet with a mass of 3.50 x 10^-15 kg accelerates downward at a rate of 2.50 m/s2 when it is between two horizontal charged plates that are 1.00 cm apart. Assuming that the excess charge on the droplet is negative and the top plate is positive, h...

Two parallel wires both carry currents directed from left to right .A circular wire loop lies in the plane of the two wires, mid-way between them.As always, assume the currents are positive charges. Sketch the changes in magnetic fields induced and the re...

How would I write this expression? Five more than the quotient of the money you earned this summer and twenty. Money earned:$1,600

yes that is what i did..and the answer i got is 2.93 x 10^-19 .. but i think its wrong :S

oh okay thank u =)

do i use the value of q/m ratio?? and thank u =)

could it be that H needs to be negative??

even if i try hc/wavelength - Threshold frequency i still don't get the right answer

I just figured that out but thank you very much! :)