1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Olin [163]
2 years ago
15

I need a description on how an electromagnetic wave carries energy from place to place

SAT
1 answer:
Ray Of Light [21]2 years ago
8 0

Electromagnetic waves bring energy into a system by virtue of their electric and magnetic fields. These fields can exert forces and move charges in the system and, thus, do work on them. ... Once created, the fields carry energy away from a source.

You might be interested in
Write true if the statement is correct and false if it is not
Nat2105 [25]

Answer:

ok ok ok ok ok ok ok ok ok ok

8 0
1 year ago
Which of the following illustrates perpendicular lines?
Novosadov [1.4K]

Answer:

B.Letter x

Explanation:

When these two lines cross, they make perpendicular lines. They are perpendicular because they cross at right angles to each other

4 0
2 years ago
Pat needs to determine the height of a tree before cutting it down to be sure that it will not fall on a nearby fence. the angle
Mekhanik [1.2K]

The height of the​ tree, which Pat needs to determine, before cutting it down to be sure that it will not fall on a nearby fence is 111 ft.

<h3>What is right angle triangle property?</h3>

In a right angle triangle, the ratio of the opposite side to the base side is equal to the tangent angle between them.

\tan\theta=\dfrac{b}{a}

Here, (b) is the opposite side, (a) is the base side.

Pat needs to determine the height of a tree before cutting it down to be sure that it will not fall on a nearby fence.

The angle of elevation of the tree from one position on a flat path from the tree is

H=40^o

From a second position,

I=60\rm\; ft

Farther along this path it is,

b=30^o

Let the distance between tree and first position is x. Thus, from the trigonometry,

\tan 40=\dfrac{h}{x}\\h=x\tan 40             ....1

The distance between tree and second position is (x+60) ft. Thus, again from the trigonometry,

\tan 30=\dfrac{h}{x+60}\\h=(x+60)\tan 40               ......2

Compare the equation 1 and 2,

x\tan (40)=(x+60)\tan 30\\0.839x=0.577x+34.64\\0.839x-0.577x=34.64\\x=\dfrac{34.64}{0.262}\\x=132.25\rm\; ft

Put this value in equation 1 as,

h=(132.25)\times \tan40\\h\approx111\rm\;ft

Thus, the height of the​ tree, which Pat needs to determine, before cutting it down to be sure that it will not fall on a nearby fence is 111 ft.

Learn more about the right angle triangle property here;

brainly.com/question/22790996

#SPJ1

7 0
2 years ago
vì sao nói quyết định là sản phẩm tư duy và hành động ý chí của nhà quản trị ?cho ví dụ minh họa cụ thể ?
Alex_Xolod [135]
Ra quyết định là hành động hoặc quá trình lựa chọn một phương án ưu tiên hoặc quá trình hành động từ một nhóm các phương án thay thế. Nó đi trước và làm nền tảng cho hầu hết mọi hành vi có chủ ý hoặc tự nguyện. Lựa chọn hành động là quá trình chọn “việc cần làm tiếp theo” trong môi trường năng động và không thể đoán trước trong thời gian thực.
3 0
2 years ago
What is 2+2 i have been stuck on this question for hours.
weqwewe [10]

Answer: bro it’s 22 just kidding it’s 4

Explanation: how have you been stuck on it for hours

4 0
2 years ago
Read 2 more answers
Other questions:
  • If 1/2 + 2/5 s = s 3:4 what is the value of s
    5·2 answers
  • Match each word with the sense it awakens i a reader sight sound smell touch taste
    11·1 answer
  • I need to slove this
    9·1 answer
  • Which of the following is a precaution you should take when working with power tools?
    10·2 answers
  • Scientists are studying a group of ant colonies in the Arizona desert. Which question about the ants can be answered scientifica
    5·2 answers
  • The table shows survey results for 500 people, in which they were asked if they had a pierced ear. If one person is selected
    7·1 answer
  • The revenue each season from tickets at the theme part is represented by t(x) = 5x. The cost to pay the employees each season is
    12·1 answer
  • State three negative social changes you may encounter as a new student at a higher education institution.
    13·2 answers
  • A thunderstorm adds freshwater to the ocean. What does this do?
    11·1 answer
  • Coconut cupcakes without shredded coconut
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!