Two large insulating parallel plates carry uniform positive charge densities equal to 5.8 nCm2 . They are spaced 10.0 cm apart. Find the electric field at the positions indicated. Enter a positive number if the field is to the right, a negative number if the field is to the left, and zero if there is no electric field.

According to newton’s first law of motion, which force is expected to cause a body to accelerate?

Red light strikes a metal surface and electrons are ejected. if violet light is now used with a 10% greater intensity, what will happen to the ejection rate (number of ejected electrons per second) and the maximum energy of the electrons? a) greater ejection rate; same maximum energyb) same ejection rate; greater maximum energyc) greater ejection rate; greater maximum energyd) same ejection rate; same maximum energye) none of the above answers are correct

In a stagnant pool of water, a crayfish may spend much of its time lying with one side of its carapace near the surface of the water. in this position, it will move the walking legs on that side in a rhythmic back-and-forth motion. explain the likely function of this behavior.