A student strikes a block at the bottom of a ramp giving it an initial speed v0 up the ramp as shown at right. there is a fricti

Applying the disinfectant once removes 90% of the bacteria, leaving 10% remaining.

Applying it a second time eliminates 90% of that remaining 10%, so you calculate 10 minus 90% of 10 to find the leftover bacteria after two applications.





This results in only 1% of the bacteria still being present, meaning that 99% of the original bacteria have been eradicated.

According to an alternative source, this question pertains to the text "The Chinese Civil Service Exam System” authored by Ichisada Miyazaki.

This text reveals that the civil service exams in China originated almost fourteen centuries ago, making it one of the oldest examination systems globally.

The purpose of this system was to identify the most talented young men in China for governmental roles, providing them with the necessary education. However, this process was lengthy and arduous, prompting many students and teachers to create effective shortcuts for exam preparation. For instance, rapid study techniques were developed, including compiled answer collections for exams.

Such methods were known to the Chinese authorities, who condemned them vehemently. Students utilizing these shortcuts faced failure, and the government frequently banned the publication of such resources. However, the business of producing these materials was thriving, leading to the ineffectiveness of these bans.

Steroids fall under schedule III.

Answer:

Approximately 66% of women who participated in the marathon finished with a time faster than Kathy's (rounded to the nearest whole number)

Explanation:

1. To analyze this correctly, let's go over the provided data:

The average finishing time for women = 259 minutes

Standard deviation of finishing time for women = 32 minutes

Kathy's finishing time = 272 minutes

2. To find the proportion of women who ran the marathon with times less than Kathy's, we will calculate the z-score for her finishing temperature as follows:

z-score = (272 - 259)/32

z-score = 13/32 = 0.41 (rounded to the nearest hundredth)

Using the z-table, we can now determine the proportion of women who completed the marathon in less time than Kathy:

p(z=0.41) = 0.6591

About 66% of women who completed the marathon had a quicker finishing time compared to Kathy's (rounded to the nearest whole)

A. The map shows the political boundaries of different US states.

B. Wisconsin

C. Dairy farms are situated close to the Great Lakes.

D. Land is allocated for corn cultivation and the growth of nutritious grasses.

E. Vegetation and precipitation

Explanation:

A. The map includes the political borders of the states within the US as well as the mainland. Politically, boundaries refer to the imaginary lines that distinguish between multiple political entities. The majority of the outlines are shaped geometrically, often aligning with specific longitudes or latitudes. For instance, Colorado's border spans from 37° N to 41° N.

B. According to the map, Wisconsin exhibits the highest concentration of dairy farms compared to other states, earning the title of "America’s Dairyland" for its leading dairy production in the US. This high density of dairy farms in Wisconsin can be attributed to its proximity to the Great Lakes, favorable climate, growing conditions, availability of quality feed, and excellent dairy cattle breeds.

C. A noticeable pattern presented in the map is that numerous dairy farms are located in the vicinity of the Great Lakes in the northeastern US. This abundance of dairy farms is linked to optimal weather conditions that favor dairy farming, plus the availability of nutritious crops like alfalfa and corn, which serve as feed and contribute to successful commercial dairy operations in the area.

D. A prominent land-use trend associated with dairy farms includes the allocation of expansive areas for the cultivation of corn and nutritious alfalfa grass. Previously, these areas were used for temperate wheat farming. However, the rise of commercial dairy farming has prompted extensive agriculture methods, dedicating large tracts of land to corn and alfalfa production. The application of fertilizers and machinery is prevalent, resulting in high overall farm yields, although the yield per land unit remains low.

E. Two geographical attributes absent from the map that reinforce the observed patterns of dairy farming are:

• Vegetation - The temperate grasslands (Prairies) in these areas provide ample opportunities for growing fodder grass.

• Precipitation - These regions benefit from abundant rainfall sourced from the nearby freshwater lakes, crucial for animal feed cultivation.