Answer:
B
Explanation:
The printing press allowed mass production of books that spread new scientific ideas.
4 men x 8 days = 32 days work content & 6 women x 8 days = 48 work content
6 women at 1/400 per day x 8 days is 48/400. 352+ so 1 mans daily output is 11 work units per day x 4 men = 44 work output per day x 8 days = 352 total work output
3 men x 10 days = 30 days work content & 7 women x 10 days = 70 work content
1 man work output is 11 x 3 men x 10 days = 333 work units
one woman’s work output is 1/400 per day x 7 women = 7/400 per day x 10 days = Total of 70 work output plus men’s output of 330 = 400 work units.
10 women x 40 days = 400 work content
so if 10 men carried out the work its 11 x 10 men = 110 work units per day
400 work units + 110 work units per day = 3.6363 days work for 10 men.
1 women daily work output = 1/400 unit per person x 10 women or 10/400 work units per day so 10 x 40 days
4 Men & 6 Women = 8 days (men = 4 x 8 x 11 = 352)( 6 x 8 x 1/40 = 48/40
3 Men & 7 Women=10 days (men = 3 x 10 x 11 = 330)(7 x 10 x 1/40 =70/40)
10 women at 1/400 each per day x 40 days is 400 work units
while 10 men x 11 units is 110 units per day so for 400 units it’s 3.6363 days
1 man is equal approximately to 11 Women
10 men can do job in 3.6363 days x ratio of 11 =
Answer: It will taken 10 women x 40 days to complete the same job.
Answer:
On 9 January 1857, the San Andreas fault segment between Cholame and San Bernardino broke loose at its northwestern end, and the rupture propagated southeastward in the great Fort Tejon earthquake with a magnitude of about 7.9.
Explanation:
The Fort Tejon earthquake, which occurred on January 9, 1857, is considered the strongest earthquake that shook the state of California. It is estimated at a strength of 7.9. Its strength is therefore comparable to that of the 1906 San Francisco earthquake. It occurred along the San Andreas Fault 362 kilometers between Parkfield and San Bernardino. The two plates that meet along this disturbance shifted up to nine meters during this quake.
California was still sparsely populated in 1857. Unlike the New Madrid earthquake of 1811, there are hardly any records of people who have experienced this earthquake. For this reason it is only known among seismologists. According to current research, its epicenter was located near the California city of Parkfield. However, it got its name because of the army camp Fort Tejon, which was located on the Tejon Pass, reported it.
Only one death was reported as a result of the earthquake. The person died in the collapse of an adobe house at Reed’s Ranch in Gorman, very close to the fault. Most of the buildings in Fort Tejon were badly damaged and several people were injured. Some buildings in Los Angeles were destroyed, but no major damage was reported.
The convection cell in the mantle is essentially the self-sustaining, constant movement of the magma inside this layer. This works in a very simple way. The hotter magma is less dense, so it is pushed upward toward the crust above it, while the cooler magma is denser, and it moves downward where it gets hotter, and the process goes on and one. The magma that goes upward toward the crust, manages to push through the thinner and cracked crust between the plates that move away from each other, thus on the divergent plate boundaries. As the magma penetrates through the crust it manages to get to the ocean floor, thus causing volcanic activity. This magma cools of very quickly and creates new crust. Because the magma constantly rises up and creates new crust, the crust piles up and forms an underwater mountain of volcanic origin that constantly has volcanic activity because of the rising magma. This volcanic underwater mountain range is called mid-ocean ridge.
Most of the active volcanoes are located on whats known as The Ring of Fire and are found on its western edge, from the Kamchatka Peninsula in Russia, through the islands of Japan and Southeast Asia, to New Zealand.
