Which observation provided Albert Einstein the clue that he needed to explain the photoelectric effect? Light is made up of extremely small particles.
Particles that are emitted from a strip of metal are electrons.
Shining light on a metal strip produces emissions.
Energy of electrons depends on light’s frequency, not intensity.

Distance and velocity graph

Read the sentences below in 1962, i tried to enroll as the first black student at the university of mississippi. the governor of mississippi blocked my entrance which best describes the verbs used in the sentences? o they are past tense verbs, which are often used in narrative essays o they are past tense verbs, which are not often used in narrative essays. o they are future tense verbs, which are often used in narrative essays o they are future tense verbs, which are not often used in narrative essays.