Social Studies, 02.03.2020 17:26 southsan2021

Although human beings have been able to fly hundreds of thousands of miles into outer space, getting inside the earth has proven much more difficult. The deepest mines ever drilled are only about 10 miles deep. To illustrate the difficulties associated with such drilling, consider the following: The density of steel is about 7900 kilograms per cubic meter, and its breaking stress, defined as the maximum stress the material can bear without deteriorating, is about 2.0×109 pascals. What is the maximum length of a steel cable that can be lowered into a mine? Assume that the magnitude of the acceleration due to gravity remains constant at 9.8 meters per second per second.

Answers: 1

Show answers

Another question on Social Studies

Social Studies, 21.06.2019 19:30

According to this map, which of these statements is most correct? a) fewer people are contracting hiv in europe than in the past. b) fewer people are contracting hiv in southern africa than in the past. c) egyptians are less likely to contract hiv than people in sub-saharan africa. d) people in canada contract hiv more frequently than people in the united states.

Answers: 1

Answer

Social Studies, 22.06.2019 09:10

Which statement best completes the diagram of the ways the different branches of government can limit each other's powers?

Answers: 1

Answer

Social Studies, 22.06.2019 12:00

Does (flavius) josephus believe the romans were merciful when they conquered people? how does he try to persuade the reader to support his belief?

Answers: 1

Answer

Social Studies, 22.06.2019 18:00

Acommittee that exists permanently in either the house of representatives or the senate is called a a. permanent committee b. long-term committee c. standing committee d. enduring committee select the best answer from the choices provided

Answers: 1

Answer

You know the right answer?

Although human beings have been able to fly hundreds of thousands of miles into outer space, getting...

Questions