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
Anna35 [415]
3 years ago
14

How Far East have you traveled if you ran 80 meters northeast

Physics
1 answer:
CaHeK987 [17]3 years ago
6 0

Explanation:

Given parameters:

Displacement = 80m

Unknown:

Displacement eastward = ?

Solution:

Displacement is the distance traveled in a specific direction.

To find the distance traveled eastward, we need to find the horizontal component of his displacement using the cosine rule:

   Cos Ф = \frac{adjacent }{hypotenuse}

The unknown is the adjacent;

 Adjacent = hypotenuse CosФ = 80 cos 45 = 56.57m

His displacement is 56.57m due east

learn more:

Displacement brainly.com/question/5461768

#learnwithBrainly

You might be interested in
A model used for the yield y of an agricultural crop as a function of the nitrogen level n in the soil (measured in appropriate
pychu [463]

<span>The maxima of an equation can be obtained by taking the 1st derivative of the equation then equate it to 0.</span>The value of N that result in best yield is when dy/dn = 0.

Taking the 1st derivative of the equation y=(kn)/(9+n^2) :<span>
</span>

By using the quotient rule the form of the equation is:<span>
y = g(n) / h(n) 
where:</span>

g(n) = kn    --->    g'(n) = k 

<span> <span>h(n) = 9 + n^2     --->    h'(n) = 2n </span>
dy/dn is defined as:
<span>dy/dn = [h(n) * g'(n) - h'(n) * g(n)] / h(n)^2 
dy/dn = [(9 + n^2)(k) - (kn)(2n)] / (9 + n^2)^2 
dy/dn = (9k + kn^2 - 2kn^2) / (9 + n^2)^2 
dy/dn = (9k - kn^2) / (9 + n^2)^2 
dy/dn = k(9 - n^2) / (9 + n^2)^2 

<span>Equate dy/dn = 0, then solve for n 
k(9 - n^2) / (9 + n^2)^2 = 0 
k(9 - n^2) = 0 
9 - n^2 = 0 
n^2 = 9 
n = sqrt(9) 
n = 3 

<span>Answer: The nitrogen level that gives the best yield of agricultural crops is 3 units.</span></span></span></span>

5 0
3 years ago
The energy from the movement of electrons through the electron transport chain is directly used to synthesize atp.
baherus [9]

Answer:

False

Explanation:

This statement is false

3 0
3 years ago
Find the frequency of a spring block system if it is doing 4 oscillation in 100s
Paha777 [63]

Answer:

.004 Hz

Explanation:

Frequeny is cycles per second. An oscillation is 1 cycle

F=cycles/sec

4/100

=0.004Hz (Hz- Hertz=1 cycle/sec)

3 0
3 years ago
A movie stunt performer is filming a scene where he swings across a river on a vine. The safety crew must use a vine with enough
Julli [10]

Answer:

1125.66956 N

Explanation:

m = Mass of stunt performer

g = Acceleration due to gravity = 9.81 m/s²

v = Velocity of the swing = 7 m/s

T = Tension

r = Radius of the swing = Length of vine = 11.5 m

From the free body diagram

T-mg-m\frac{v^2}{r}=0\\\Rightarrow T=mg+m\frac{v^2}{r}\\\Rightarrow T=m(g+\frac{v^2}{r})\\\Rightarrow T=80(9.81+\frac{7^2}{11.5})\\\Rightarrow T=1125.66956\ N

The minimum tension force the vine must be able to support without breaking is 1125.66956 N

7 0
3 years ago
An irrigation channel has a rectangular cross section of 1.5 ft deep x 11 ft wide on the input side. On the far end of the chann
garik1379 [7]

Answer:

55 ft/s

Explanation:

A₁ = Area of rectangular cross-section at input side = 1.5 x 11 = 16.5 ft²

A₂ = Area of rectangular cross-section at far end = 1.5 x 6 = 9 ft²

v₁ = speed of water at the input side of channel = 30 ft/s

v₂ = speed of water at the input side of channel = ?

Using equation of continuity

A₁ v₁ = A₂ v₂

(16.5) (30) = (9) v₂

v₂ = 55 ft/s

5 0
4 years ago
Other questions:
  • The magnetic field around a current-carrying conductor is _____.
    6·1 answer
  • Explain briefly how the following phenomena happen on Earth, relating your answers to the theory of plate tectonics
    7·1 answer
  • How are mass and inertia related
    15·2 answers
  • The small increase in global oil production coupled with an increased demand for those resources leads to _______.
    15·2 answers
  • How kind of cells have cell wall
    5·1 answer
  • A meteor is moving at a speed of 60000 km/h. What is its speed in m/s?
    14·1 answer
  • If Jupiter were 10 times more massive, it would generate nuclear fusion in its core and be a star instead of a planet. If Jupite
    12·2 answers
  • Identify at least 2 events in which a scientific theory has chnaged
    10·1 answer
  • A light wave has a frequency of <img src="https://tex.z-dn.net/?f=%286%20%5Ctimes%20%7B10%7D%5E%7B8%7D%29." id="TexFormula1" tit
    13·2 answers
  • An empty plastic or glass dish being removed from a microwave oven is cool to the touch. How can this be possible
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!