Determine the equilibrium recombination constant r for si and gaas, having equilibrium thermal generation rates of 4.03 x 105 (cm3-sec) and 3.18 x 103 (cm2-sec)- x 10 cm3 1.5 x 1010 cm-3 and 2.1 x respectively, and intrinsic carrier concentrations of respectively.

Molten iron fills a mould, which has a volume of 200 cm cubed. calculate the volume when the iron cools and solidifies. molten iron has a density of 7.0g/cm cubed. in its solid state, iron has a density of 8.0g/cm cubed.

Ajoint produces movement when its angle decreases. which type of movement is it?

Acyclotron is used to produce a beam of high-energy deuterons that then collide with a target to produce radioactive isotopes for a medical procedure. deuterons are nuclei of deuterium, an isotope of hydrogen, consisting of one neutron and one proton, with total mass 3.34×10−27kg. the deuterons exit the cyclotron with a kinetic energy of 6.40 mev .a-what is the speed of the deuterons when they exit? b-if the magnetic field inside the cyclotron is 1.25 t, what is the diameter of the deuterons' largest orbit, just before they exit? c-if the beam current is 350 μa how many deuterons strike the target each second?