How is the Sun different from all other stars?
A.
The Sun is closer than all other stars.
B.
The Sun is hotter than all other stars.
C.
The Sun is brighter than all other stars.
D.
The Sun is larger than all other stars.

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