Along pipe of outer radius =3.50 cm and inner radius =2.98 cm carries a uniform charge density of 9.22 mc/m3. assuming that the pipe is sufficiently long to consider it infinitely long, use gauss's law to calculate the electric field at a distance =7.35 cm from the centerline of the pipe. use =8.85×10−12 c/n·m2 for the the permittivity of free space.

Why do scientists believe that light is made of streams of particles? scientists believe that light is made of streams of particles because only the presence of photons can explain phenomena observed during experiments on the photoelectric effect. these observations include only some frequencies of light causing the ejection of electrons, no time gap existing between light striking a metal and electrons being ejected, and intensity having no effect on the kinetic energy of the ejected electrons.

A110-pound person pulls herself up 4.0 feet. this took her 2.5 seconds. how much power was developed? 0.13 hp 0.32 hp 2.0 hp 3.1 hp

The seven sisters, seven stars located more than 400 light-years away in the taurus constellation can be seen here with venus and another constellation, orion. the seven stars stay grouped together but seem to move, like the planet venus. why do stars seem to move like planets in the night sky?