A Thousand Years After the "Big Bang" the Background Temperature $\backsim$

question 18

Multiple Choice

A thousand years after the "Big Bang" the background temperature of the universe was at $\backsim$ 10⁵ K.The peak wavelength of the blackbody radiation at that temperature is

• A)29 nm
• B)290 nm
• C)56 nm
• D)560 nm
• E)730 nm

Recognize the importance of work environment control (illumination, noise, temperature, air quality) for employee well-being and productivity.

Learn the distinction between job enrichment, job enlargement, and job rotation and their implications on job design.

Identify strategies for setting and using labor standards to optimize organizational performance.

Understand how feedback mechanisms and job characteristics (like autonomy and skill variety) impact job satisfaction and performance.

---

Definitions:

Peritubular Capillary

The peritubular capillaries are a network of tiny blood vessels that surround the tubules in the kidney, involved in the reabsorption and secretion processes during urine formation.

Efferent Arteriole

Vessel that carries blood from the glomerulus to the peritubular capillaries.

Glomerular Capillaries

are specialized capillaries within the kidneys that are involved in the filtration process of blood to form urine.

Fenestrae

Small openings or pores, often found in the capillary endothelial cells, which allow for the exchange of substances between blood vessels and tissues.