In the diagram, q1, q2, and q3 are in a straight line. Each of these particles has a charge of -2.35 x 10-6 C. Particles
q1 and q2 are separated by 0.100 m and particles q2 and
q3 are separated by 0.100 m. What is the net force on
particle q1?

Which is not a source of noise pollution? a)airplanes b)acid rain c)machines d)cars

Examine the equation. 23490th→23088ra+42he what kind of barrier would you need to block the radioactive particles from this reaction? a. a piece of paper b. a sheet of aluminum foil c. a two-inch block of lead d. a solid concrete block

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.