The earth exerts a gravitational force of 3.5n on an object. what is the mass of the object in kg?

Photoelectrons with a maximum speed of 6.50 x 107 m/s are ejected from a surface in the presence of light with a frequency of 6.75 x 1014hz. if the mass of an electron is 9.10 x 10-31 kg, calculate in joules the maximum kinetic energy of a single electron. 3.84 x 10-15 j 1.92 x 10-15 j 5.92 x 10-23 j 3.07 x 10-16 j

Explain what happens at the saturation point when adding salt to water at room temperature.

You can decrease the resistance of a length of wire by