The overall efficiency of a power plant can be increased by co-generation, that is, by ________.
a. recycling the waste heat from a power plant back to the boiler
b. raising the temperature of the steam by the use of two boilers
c. combining two types of steam engines to generate electricity
d. generating electricity and using some of the waste heat to provide process steam
Question 2
A race car traveling at 100 m/s enters an unbanked turn of 400 m radius. The coefficient of (static) friction between the tires and the track is 1.1 . The track has both an inner and an outer wall. Which statement is correct?
a. The race car will crash into the outer wall.
b. The race car will crash into the inner wall.
c. The car will stay in the center of the track.
d. The car will stay in the center of the track if the driver speeds up.
e. The car would stay in the center of the track if the radius were reduced to 200 m.
The Pathways of Water and Solutes in a Plant.
Plant Diagram
Plant Cell
Plant foods such as grains and vegetables are the main sources of nonheme iron in your diet
Plant cell structure
A C4 Plant: Millet