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
Sholpan [36]
3 years ago
11

Two airplanes leave an airport at the same time. The velocity of the first airplane is 730 m/h at a heading of 44.3 ◦ . The velo

city of the second is 590 m/h at a heading of 83◦ . How far apart are they after 2.9 h?
Physics
1 answer:
Goshia [24]3 years ago
4 0

Answer:

So airplane will be 1324.9453 m apart after 2.9 hour

Explanation:

So if we draw the vectors of a 2d graph we see that the difference in angles is  = 83 - 44.3 = 83-44.3=38.7^{\circ}

Distance traveled by first plane = 730×2.9 = 2117 m

And distance traveled by second plane = 590×2.9 = 1711 m

We represent these distances as two sides of the triangle, and the distance between the planes as the side opposing the angle 38.7.

Using the law of cosine, d^2 representing the distance between the planes, we see that:

d^2=2117^2 + 1711^2 -2\times (2117)\times (1711)cos(38.7)=1755480.2482

d = 1324.9453 m

You might be interested in
You walk six blocks east along 12th Street, then three blocks west, then one block east, then six blocks east, then seven blocks
Oksana_A [137]
Displacement depends upon the path taken as it is a vector.

From your problem above we would have a total displacement of;
Defining +x direction as east and -x direction as west

6east-3west+1east+6east-7west

6-3+1+6-7=3 blocks east or + x-direction

So even though they walked a total of 17 blocks it ends up only being 3 blocks total in +xdirection that was travelled by displacement.

Any questions please ask.
5 0
2 years ago
Which statement about van der Waals forces is true?
kobusy [5.1K]
The answer is A. When the forces are weaker, they will not be able to hold the particles of the substances together; therefore, the substance will be observed as being volatile.
3 0
3 years ago
Read 2 more answers
collection of such objects we observe that they emit electromagnetic radiation of three different energies: 0.7 eV (infrared), 2
UkoKoshka [18]

It 45 because it has to be this and that and ur gay

4 0
3 years ago
Calculate the current through a 3.0 ω resistor with a voltage of 9.0 v across it.
gulaghasi [49]

Answer: 3 A

Explanation:

According to<u> Ohm's law</u>:  

V=R.I

Where:

V=9 V is the voltage

R=3\Omega is the resistance of the resistor

I is the electric current (the value we want to find)

Isolating I:

I=\frac{V}{R}

I=\frac{9 V}{3\Omega}

Finally:

I=3 A

7 0
2 years ago
What is a newton defined as<br>​
slava [35]

Answer:

Newton, absolute unit of force in the International System of Units (SI units), abbreviated N. It is defined as that force necessary to provide a mass of one kilogram with an acceleration of one metre per second per second.

4 0
3 years ago
Other questions:
  • How can astronomers infer wich elements are found in a star
    7·2 answers
  • A moving small car has a head-on collision with a large stationary truck 7.3 times the mass of the car. Which statement is true
    13·2 answers
  • Suppose that a 1000 kg car is traveling at 25 m/s (aprox 55mph). Its brakes can apply a force of 5000N. What is the minimum dist
    15·2 answers
  • A 10 kg block is pushed with a constant horizontal force of 20 n against a constant horizontal frictional force of 10 n. What is
    9·1 answer
  • Heating food under a heat lamp is an example of heat transfer by
    7·1 answer
  • What is the age of The Universe and how big is it? ⭐
    7·1 answer
  • A high pitch always corresponds to
    6·1 answer
  • Please help me ;3 (ALSO REMEMBER IT SAYS SELECT TWO)
    6·2 answers
  • What is an excitation
    5·1 answer
  • Ram and Ajay are trying to move a heavy box. Ram is applying 100N and Ajay is
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!