An airplane undergoes the following displacements, all at the same altitude: First, it flies 59.0 km in a direction 30.0° east of north. Next, it flies 58.0 km due south. Finally, it flies 100 km 30.0° north of west. Use components to determine how far the airplane ends up from its starting point. A) 70.1 km B) 71.5 km C) 68.7 km D) 74.4 km E) 73 km
Answers: 2
![d_{1x}= 59*sin(30) = 29.5[km]\\d_{1y}= 59*cos(30) = 51.09[km]](/tpl/images/0529/9738/48daa.png)
![d_{2y} = - 58 [km]\\](/tpl/images/0529/9738/f9273.png)
![d_{3x}= - 100*cos(30) = -86.6[km]\\d_{3y} = 100*sin(30)= 50 [km]](/tpl/images/0529/9738/18579.png)
![d_{x}=29.5-86.6 = -57.1[km]\\d_{y}=51.09 -58+50=43.09[km]\\\\](/tpl/images/0529/9738/7bd3a.png)
![d = \sqrt{(57.1)^{2} +(43.09)^{2} } \\d= 71.53[km]](/tpl/images/0529/9738/9a4cf.png)
Another question on Physics
Physics, 21.06.2019 23:30
Which lists the main components of darwin’s theory of evolution? a. random mutations drive evolution; the evolution of a population happens slowly; organisms have common ancestors; organisms do not change. b. natural selection drives evolution; the evolution of a population happens slowly; organisms have common ancestors; organisms change over time. c. natural selection drives evolution; the evolution of a population happens rapidly; organisms have common ancestors; organisms change over time. d. random mutations drive evolution; the evolution of a population happens rapidly; organisms have common ancestors; organisms do not change.
Answers: 1
Physics, 22.06.2019 09:00
In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final
Answers: 1
Physics, 22.06.2019 10:30
J. j. thomson’s experiment disproved the theory that an atom
Answers: 3
Physics, 22.06.2019 14:00
Agraduated cylinder contains 63.0 ml of water. a piece of gold, which has a density of 19.3 g/ cm3, is added to the water and the volume goes up to 64.5 ml. calculate the mass in grams of the gold that was added to the water. explain how you got your answer.
Answers: 3
You know the right answer?
An airplane undergoes the following displacements, all at the same altitude: First, it flies 59.0 km...
Questions
Health, 10.10.2020 01:01
Advanced Placement (AP), 10.10.2020 01:01
Social Studies, 10.10.2020 01:01
Physics, 10.10.2020 01:01
Biology, 10.10.2020 01:01
History, 10.10.2020 01:01
Mathematics, 10.10.2020 01:01
Mathematics, 10.10.2020 01:01
