A square conducting plate 52.0 cm on a side and with no net charge is placed in a region, where there is a uniform electric field of 82.0 kN/C directed to the right and perpendicular to the plate. Find
(a) the charge density of each face of the plate and
(b) the total charge on each face.

Aplanet of mass m 6.75 x 1024 kg is orbiting in a circular path a star of mass m 2.75 x 1029 kg. the radius of the orbit is r 8.05 x107 km. what is the orbital period (in earth days) of the planet tplanet?

Aphysical change is a change in the size, shape,, or stafe of matter true or false

At 20∘c, the hole in an aluminum ring is 2.800 cm in diameter. you need to slip this ring over a steel shaft that has a room-temperature diameter of 2.804 cm . 1. to what common temperature should the ring and the shaft be heated so that the ring will just fit onto the shaft? coefficients of linear thermal expansion of steel and aluminum are 12×10−6 k−1 and23×10−6 k−1 respectively.