Theme paragraph Apollo 13

Apollo 13 was to be the third mission to land on the Moon. An explosion in one of the oxygen tanks crippled the spacecraft during flight and the crew were forced to orbit the Moon and return to the Earth without landing.

Summary of Events

The Apollo 13 mission was launched at 2:13 p.m. EST, April 11, 1970 from launch complex 39A at Kennedy Space Center. Apollo 13 Launch The space vehicle crew consisted of James A. Lovell, Jr. commander, John L. Swigert, Jr., command module pilot and Fred W. Haise, Jr. lunar module pilot.

The Apollo 13 Mission was planned as a lunar landing mission but was aborted en route to the moon after about 56 hours of flight due to loss of service module cryogenic oxygen and consequent loss of capability to generate electrical power, to provide oxygen and to produce water.

Spacecraft systems performance was nominal until the fans in cryogenic oxygen tank 2 were turned on at 55:53:18 ground elapsed time (GET). About 2 seconds after energizing the fan circuit, a short was indicated in the current from fuel cell 3, which was supplying power to cryogenic oxygen tank 2 fans. Within several additional seconds, two other shorted conditions occurred.

Electrical shorts in the fan circuit ignited the wire insulation, causing temperature and pressure to increase within cryogenic oxygen tank 2. When pressure reached the cryogenic oxygen tank 2 relief valve full-flow conditions of 1008 psi, the pressure began decreasing for about 9 seconds, at which time the relief valve probably reseated, causing the pressure to rise again momentarily. About a quarter of a second later, a vibration disturbance was noted on the command module accelerometers.

The next series of events occurred within a fraction of a second between the accelerometer disturbances and the data loss. A tank line burst, because of heat, in the vacuum jacket pressurizing the annulus and, in turn, causing the blow-out plug on the vacuum jacket to rupture. Some mechanism in bay 4 combined with the oxygen buildup in that bay to cause a rapid pressure rise which resulted in separation of the outer panel. The panel struck one of the dishes of the high-gain antenna. The panel separation shock closed the fuel cell 1 and 3 oxygen reactant shut-off valves and several propellant and helium isolation valves in the reaction control system. Data were lost for about 1.8 seconds as the high-gain antenna switched from narrow beam to wide beam, because of the antenna being hit and damaged.

As a result of these occurrences, the CM was powered down and the LM was configured to supply the necessary power and other consumables.

The CSM was powered down at approximately 58:40 GET. The surge tank and repressurization package were isolated with approximately 860 psi residual pressure (approx. 6.5 lbs of oxygen total). The primary water glycol system was left with radiators bypassed.

All LM systems performed satisfactorily in providing the necessary power and environmental control to the spacecraft. The requirement for lithium hydroxide to remove carbon dioxide from the spacecraft atmosphere was met by a combination of the CM and LM cartridges since the LM cartridges alone would not satisfy the total requirement. The crew, with direction from Mission Control, built an adapter for the CM cartridges to accept LM hoses.

The service module was jettisoned at approximately 138 hours GET, and the crew observed and photographed the bay-4 area where the cryogenic tank anomaly had occurred. At this time, the crew remarked that the outer skin covering for bay-4 had been severely damaged, with a large portion missing. The LM was jettisoned about 1 hour before entry, which was performed nominally using primary guidance and navigation system.

Why you should have a cell phone too, if everyone have it? Tell me your opinion and explain why.

Directions: Let’s try to describe a big idea or event in one word. Read the topics and choose one for your focus. Share your answers in a short paragraph. Be sure to answer these questions: Why did you choose that word? How does it cover the big ideas? Use specific details from the readings from this class or your own experiences and knowledge to support your choice of word. Prompt: Topic 1: In “Rivers and Stories,” Part 2, the author writes about the relationship between rivers and the world. The topic for this Word Journal is rivers. Choose one adjective to describe rivers as it is used in “Rivers and Stories,” Part 2. Then explain your word choice. Topic 2: In “Special Message to the Congress on Urgent National Needs,” President John F. Kennedy speaks about the space race. The topic for this Word Journal is space. Choose one adjective to describe space as it is presented in the speech. Then explain your word choice.

abigail description the cruicible

What is the meaning of TENSE with in terms with verbs? A.nervous B.afraid C.anxious D.time

Look the picture of the lady describe her

Select the correct answer.
The author uses Lily's behavior to develop which theme?

A. Desperate times call for desperate measures.
B. Intelligence is given to some but not to others.
C. Patience rewards those who practice it.
D. Success eludes those who do not put forth effort.

What is one character trait that could be used to describe all of the guys in Ponyboy's gang?

in a warriors daughter, what drives those qualities in a person

HELPPP TY! GIVE THE RIGHT) ANSWER) OR TRY!!!!!

What is the use of a hydrometer​

give the five major ancestral groups of latin america

Alack, there lies more peril in thine eye
Than twenty of their swords: look thou but sweet,
And I am proof against their enmity.

What kind of figurative language is this?

How do the senses used in the excerpt from "Digging" and the haiku affect a reader's understanding and interpretation of each? The excerpt from "Digging" relies much more heavily on images of nature to convey its main idea than the haiku does. The excerpt from "Digging" uses lines of equal length throughout, while the lines of the haiku are of varying lengths. The excerpt from "Digging" discusses the relationship between writing and farming, while the haiku only discusses nature. The excerpt from "Digging" focuses on sound devices to reveal its story, while the haiku focuses on visual imagery.

I will mark brainliest to the correct answer.

How does Rae's opinion of Oliver
change?

How did mark Twain’s life and times influence his general portrayal of slavery and his specific portrayal of Jim?

Heres The Book ( Questions are linked )
Read the following paragraph from “Katherine Johnson Biography.”

The 1957 launch of the Soviet satellite Sputnik changed history—and Katherine Johnson’s life. In 1957, Katherine provided some of the math for the 1958 document Notes on Space Technology, a compendium of a series of 1958 lectures given by engineers in the Flight Research Division and the Pilotless Aircraft Research Division (PARD). Engineers from those groups formed the core of the Space Task Group, the NACA’s first official foray into space travel, and Katherine, who had worked with many of them since coming to Langley, “came along with the program” as the NACA became NASA later that year. She did trajectory analysis for Alan Shepard’s May 1961 Freedom 7, America’s first human spaceflight. In 1960, she and engineer Ted Skopinski coauthored Determination of Azimuth Angle at Burnout for Placing a Satellite Over a Selected Earth Position, a report laying out the equations describing an orbital spaceflight in which the landing position of the spacecraft is specified. It was the first time a woman in the Flight Research Division had received credit as an author of a research report.

Neither Carmen nor her sisters have bought a gift for (her, their) brother.

Pls help me! thanks in advance​

whom or what does montag most likely believe is at the door while they are reading the books?

in The Crucible Why does Proctor forbid Mary from returning to court?

Help please?!?!? I’ll mark blainlist exercise 1

What does sunset mean to you?

There never was a time when the world was without fire, but there was a time when men did not know how to kindle fire; and after they learned how to kindle one, it was a long, long time before they learned how to kindle one easily. In these days we can kindle a fire without any trouble, because we can easily get a match; but we must remember that the match is one of the most wonderful things in the world, and that it took men thousands of years to learn how to make one. Let us learn the history of this familiar little object, the match.

Fire was first given to man by nature itself. When a forest is set on fire by cinders from a neighboring volcano, or when a tree is set ablaze by a thunderbolt, we may say that nature strikes a match. In the early history of the world, nature had to kindle all the fires, for man by his own effort was unable to produce a spark. The first method, then, of getting fire for use was to light sticks of wood at a flame kindled by nature—by a volcano, perhaps, or by a stroke of lightning. These firebrands were carried to the home and used in kindling the fires there. The fire secured in this way was carefully guarded and was kept burning as long as possible. But the flame, however faithfully watched, would sometimes be extinguished. A sudden gust of wind or a sudden shower would put it out. Then a new firebrand would have to be secured, and this often meant a long journey and a deal of trouble.

In 1827, John Walker, a druggist in a small English town, tipped a splint with sulphur, chlorate of potash, and sulphid of antimony, and rubbed it on sandpaper, and it burst into flame. The druggist had discovered the first friction-chemical match, the kind we use to-day. It is called friction-chemical because it is made by mixing certain chemicals together and rubbing them. Although Walker's match did not require the bottle of acid, nevertheless it was not a good one. It could be lighted only by hard rubbing, and it sputtered and threw fire in all directions. In a few years, however, phosphorus was substituted on the tip for antimony, and the change worked wonders. The match could now be lighted with very little rubbing, and it was no longer necessary to have sandpaper upon which to rub it. It would ignite when rubbed on any dry surface, and there was no longer any sputtering. This was the phosphorus match, the match with which we are so familiar.


What is the main idea of this text?

What is the of the passage

My ears have not yet drunk a hundred words
Of that tongue's utterance, yet I know the sound:
Art thou not Romeo and a Montague?

What type of figurative language is this?

a poisonous snake that has the letters d r e a d​

hey can you help me please
You are a child growing up during the Blitz; you were separated from your parents and sent away. You write them a letter to talk about your condition over there. (200 words)
▲You have to use at least 4 sentences in the passive voice

my personal experience in combat is what leads me to support greater health care benefits for veterans.
which kind of support is the writer using in this passage?
A. ad populum
B. Bibliographic
C. Logical and empirical
D. Anecdotal

On a fishing trip, Josie caught a fish that was 9 inches long. Her brother Rob caught a fish that was 36 inches long.
How many times as long as Josie's fish was Rob's fish?