in the early twentieth century, what two experiments involving light and matter could not be explained by the wave theory of light?

Explain in the simplest form what laissez faire is

During the eisenhower administration, the u.s. began to take an active military role supporting the government of o o a. south africa o b. burma (myanmar) o oc. finland od. south vietnam

*history * who was clyde ross and how was he impacted by housing discrimination?