World War I and United State Essay

World War I and United State Essay World War I and United State Essay Prior 1914 when war erupted in 1914, the US had followed neutrality and noninvolvement in European. Was the United state really neutral? By the time, developments in transportation and communication brought United State enter the Great war. There were many different reasons for this. But trading with Europe eventually brought American into World War I. World War I had had led America to biggest change in society. In addition, it led to a shift in U.S. foreign policy away from neutrality to involvement in world affairs. War broke out in Europe in 1914, the United State attempted to remain neutral. Isolationism, it advocated non involvement in European and Asian conflict in interventional politics. The United State was supposed to remain as contented neutral country by holding the tradition of Washington and Jefferson. In his Farewell Address, President Geoge Washington had advocated noninvolvement in European wars and politics. because the United States had just won war for independence. Also, the new country was relatively small and weak. Foreign policy was best made by neutrality. It was successful because the expanse of the Atlantic and Pacific Oceans had made it possible to being neutrality and remain from the conflicts. Notwithstanding, during World War I, however president Woodrow Wilson made a case for United State neutral, but it wasn't successful until 1917, the United state was drawn into the war again by the case for U.S Intervention in conflict and United State interested in maintain a p eaceful word. According to document 4, january 22,1917 in the Woodrow Wilson-speech to the United State Senate. " †¦Neutrality is no longer feasible or desirable where peace of the world is involved and the freedom of its people.." His goal was "make the world safe for the democracy" by " a war to end war" He wanted the American would be impartial and peaceful and by some development had motivate behind Wilson's decision to enter Word War I. Even though American had been out of World War I. We had traded with nation involved in the war. In 1915 Germany used submarines to stop trade between the Allies and the United States. According to the document 3, the U-boat depicted in the cartoon technology of submarine, the Germany U-boat would sink enemy ship in the war zone. In addition,the sinking ship in the cartoon represent the Lusitania was sunk without warning by German U-boat and American citizens were died. Wilson insisted that the America as a neutral nation had the right to trade with nation at war and to send its civilian on ships into war zone. He was defending the principle of freedom of the sea. In 1917, President Woodrow Wilson went to Congress to ask for declare war on

Solving Problems With a Distance-Rate-Time Formula

Solving Problems With a Distance-Rate-Time Formula In math, distance, rate, and time are three important concepts you can use to solve many problems if you know the formula. Distance is the length of space traveled by a moving object or the length measured between two points. It is usually denoted by d in math problems. The rate is the speed at which an object or person travels. It is usually denoted by  r  in equations.  Time is the measured or measurable period during which an action, process, or condition exists or continues. In distance, rate, and time problems, time is measured as the fraction in which a particular distance is traveled. Time is usually denoted by t in equations.   Solving for Distance, Rate, or Time When you are solving problems for distance, rate, and time, you will find it helpful to use diagrams or charts to organize the information and help you solve the problem. You will also apply the formula that solves distance, rate, and time, which is  distance rate x time. It is abbreviated as: d rt There are many examples where you might use this formula in real life. For example, if you know the time and rate a person is traveling on a train, you can quickly calculate how far he traveled. And  if you know the time and distance a passenger traveled on a plane, you could quickly figure the distance she traveled simply by reconfiguring the formula. Distance, Rate, and Time Example Youll usually encounter a distance, rate, and time question as a  word problem  in mathematics. Once you read the problem, simply plug the numbers into the formula. For example, suppose a  train leaves Debs house and travels at 50 mph. Two hours later, another train leaves from Debs house on the track beside or parallel to the first train but it travels at 100 mph. How far away from Debs house will the faster train pass the other train? To solve the problem, remember that d represents the distance in miles from Debs house and t  represents the time that the slower train has been traveling. You may wish to draw a diagram to show what is happening. Organize the information you have in a chart format if you havent solved these types of problems before. Remember the formula: distance rate x time When identifying the parts of the word problem, distance is typically given in units of miles, meters, kilometers, or inches. Time is in units of seconds, minutes, hours, or years. Rate is distance per time, so its units could be mph, meters per second, or inches per year. Now you can solve the system of equations: 50t 100(t - 2) (Multiply both values inside the parentheses by 100.)50t 100t - 200200 50t (Divide 200 by 50 to solve for t.)t 4 Substitute t 4 into train No. 1 d 50t 50(4) 200 Now you can write your statement. The faster train will pass the slower train 200 miles from Debs house. Sample Problems Try solving similar problems. Remember to use the formula that supports what youre looking for- distance, rate, or time. d rt (multiply)r d/t (divide)t d/r (divide) Practice Question 1 A train left Chicago and traveled toward Dallas. Five hours later another train left for Dallas traveling at 40 mph with a goal of catching up with the first train bound for Dallas. The second train finally caught up with the first train after traveling for three hours. How fast was the train that left first going? Remember to use a diagram to arrange your information. Then write two equations to solve your problem. Start with the second train, since you know the time and rate it traveled: Second traint x r d3 x 40 120 milesFirst traint x r d8 hours x r 120 milesDivide each side by 8 hours to solve for r.8 hours/8 hours x r 120 miles/8 hoursr 15 mph Practice Question 2 One train left the station and traveled toward its destination at 65 mph. Later, another train left the station traveling in the opposite direction of the first train at 75 mph. After the first train had traveled for 14 hours, it was 1,960 miles apart from the second train. How long did the second train travel? First, consider what you know: First trainr 65 mph, t 14 hours, d 65 x 14 milesSecond trainr 75 mph, t x hours, d 75x miles Then use the  d rt  formula as follows: d (of train 1) d (of train 2) 1,960 miles75x 910 1,96075x 1,050x 14 hours (the time the second train traveled)