Examlex
An ideal Carnot engine is operated between a hot and a cold reservoir. The temperature difference between the two reservoirs is 284°C. If the efficiency of this ideal engine is 24.0%, find the temperature of the cold reservoir in degrees Celsius.
Wild Plants
Plant species that grow naturally in an area, without intentional human cultivation.
Industrial-Medical Revolution
A period marked by significant advances in industrial practices and medical knowledge, leading to improved manufacturing processes and health outcomes.
Bubonic Plague
An infectious disease caused by the bacterium Yersinia pestis, characterized by swollen lymph nodes (buboes), fever, and skin sores. Historically known as "The Black Death."
European Wars
European wars refer to the various conflicts that have occurred within Europe throughout history, shaping its political boundaries, societies, and influence on global affairs.
Q1: A force of 5.3 N is needed
Q9: A 1.53-kg piece of iron is hung
Q12: A 2200-kg auto moving northward at 12.0
Q19: In the figure, determine the character of
Q39: The coefficient of linear expansion of copper
Q66: As shown in the figure, a 60-cm
Q93: A 6.5-g iron meteor hits the earth
Q104: If you want to double the
Q177: In a police ballistics test, a 2.00-g
Q213: A solid sphere, solid cylinder, and a