An electron is accelerated through
a potential difference of 2000 v and then it enters a
uniform magnetic field of 0.02 tesla in a direction
perpendicular to it. find the radius of the path of the
electron in the magnetic field.

Asheet of steel 1.5 mm thick has nitrogen atmospheres on both sides at 1200oc and is permitted to achieve a steady-state diffusion condition. the diffusion coefficient for nitrogen in steel at this temperature is 6 x 10- 11 m2 /s, and the diffusion flux is found to be 1.2 x 10-7 kg/m2 -s. also, it is known that the concentration of nitrogen in the steel at the high-pressure surface is 4 kg/m3 . how far into the sheet from this high-pressure side will the concentration be 2.0 kg/m3 ? assume a linear concentration profile.

How many neutrons does plutonium -196 with an atomic number of 78.

Sunidhi made a study chart about changes in states of matter. which headings best complete the chart?