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
andrew11 [14]
3 years ago
10

If wavelength and speed of a wave are 4 m and 332 m/s respectively, calculate its frequency​

Physics
1 answer:
Furkat [3]3 years ago
4 0

Explanation:

<em>Given </em>

<em>wavelength </em><em>=</em><em> </em><em>4</em><em> </em><em>m</em>

<em>speed </em><em> </em><em>=</em><em> </em><em>3</em><em>3</em><em>2</em><em> </em><em>m/</em><em>s</em>

<em>frequency </em><em>=</em><em> </em><em>?</em>

<em>We </em><em>know </em><em>we </em><em>have </em><em>the </em><em>formula </em>

<em>wavelength</em><em> </em><em>=</em><em> </em><em>speed </em><em>/</em><em> </em><em>frequency </em>

<em>4</em><em> </em><em>=</em><em> </em><em>3</em><em>3</em><em>2</em><em> </em><em>/</em><em> </em><em>frequency </em>

<em>frequency </em><em>=</em><em> </em><em>3</em><em>3</em><em>2</em><em>/</em><em>4</em>

<em>Therefore </em><em> </em><em>frequency </em><em>is </em><em>8</em><em>3</em><em> </em><em>Hertz </em><em>.</em>

You might be interested in
Can anyone help me with B.?
nata0808 [166]
An organism that can make its own food is a producer. An organism that obtains energy by feeding on the other organisms is a consumer. Decomposers break down wastes and dead organisms and return the raw materials to the ecosystem.
6 0
3 years ago
A bike rider does work to get to the top of a mountain. How could you use the law of conservation of energy to describe his trip
netineya [11]
The correct answer is (a.) The rider uses energy to do work going up the mountain. As the law of conservation of energy states that the total energy must be constant, therefore, the energy that is used to go up will be as it is to go down.
5 0
3 years ago
A machinist turns on the power on to a grinding wheel at time t= 0 s. The wheel accelerates uniformly from rest for 10 s and rea
Ugo [173]

Answer:

θt = 514.3 revolutions

Explanation:

(1)The wheel accelerates uniformly from rest for 10 s and reaches the operating angular speed of 58rad/s.

The uniformly accelerated circular movement  a circular path movement in which the angular acceleration is constant.

We apply the equations of circular motion uniformly accelerated

ωf = ω₀ + α*t  Formula (1)

θ = ω₀*t + (1/2)*α*t² Formula (2)

ωf² = ω₀² +2*α*θ Formula (3)

Where:

θ : angle that the body has rotated in a given time interval (rad)

α : angular acceleration (rad/s²)

t : time interval (s)

ω₀ : initial angular speed ( rad/s)

ωf : final angular speed ( rad/s)

Number of revolutions made by the wheel from t = 0 to t = 10 s

Data

ω₀ = 0

t = 10 s

ωf = 58 rad/s

We replace data in the formula (1) to calculate α

ωf = ω₀ + α*t

58 = 0 + α*(10)

α = 58 /10

α = 5.8 rad/s²

We replace data in the formula (2) to calculate θ

θ = ω₀*t + (1/2)*α*t²

θ = 0 + (1/2)*( 5.8)*(10)²

θ₁ = 290 rad

(2)The wheel is run at that angular velocity for 30 s, and then power is shut off.

The movement of the wheel is circular with constant angular speed and the formula to calculate θ is:

θ = ω*t

ω = 58 rad/s  , t= 30s

θ = (58 rad/s)*(30)

θ = (58 rad/s)*(30)

θ ₂= 1740 rad

(3)The wheel slows down uniformly at 1.4 rad/s² until the wheel stops.

ω₀ = 58 rad/s

α = -1.4 rad/s²

ωf = 0

We replace data in the formula (3) to calculate θ

(ωf)² = (ω₀)² + (2)*(α )*θ

0 = (58)² + (2)*(-1.4)*θ

(2)*(1.4)*θ = (58)²

θ = (58)² / (2.8)

θ = (58)² / (2.8)

θ₃ = 1201.42 rad

Total number of revolutions made by the wheel (θt)

θt =θ₁+θ₂+θ₃

θt  = 290 rad+ 1740 rad + 1201.42 rad

θt  = 3231.42 rad

1 revolution = 2π rad

θt = 3231.42 rad* ( 1revolution/2π rad)

θt = 514.3 revolutions

7 0
3 years ago
the fireman wishes to direct the flow of water from his hose to the fire at b. determine two possible angles u1 and u2 at which
Lelechka [254]

The two possible angles obtained by using the qudratic equation are;

θ_{1} = 15.10° and θ2 = 73.51°

Given, speed of water = v_{A} = 50ft/s

For the motion along x direction, time period can be calculated as follows:

s_{x} = (v_{A}) _x_{} } t

35 = (50 × cosθ) t

t = 0.64 / cosθ

For the motion in y direction, an equation can be obtained as follows:

s_{y} = (v_{A})_{y}  t +\frac{1}{2} (a_{y} )t^{2}

s_{y} = (-v_{A}sinθ) }  t +\frac{1}{2} (a_{y} )t^{2}

Plugging in the values we get:

-20 = (-50_sinθ) }  t +\frac{1}{2} (-32.2} )t^{2}

-20 = -32tanθ - 10.304sec^{2}θ

Upon solving the above quadratic equation, we get,

tanθ = 0.27 , -3.38

Therefore,

tanθ_{1} = 0.27

θ_{1} = 15.10°

and, tanθ_{2} = -3.38

θ_{2} = 73.51

Learn more about quadratic equation here:

brainly.com/question/17177510

#SPJ4

8 0
1 year ago
Diamond has an index of refraction of 2.419. What is the critical angle for internal reflection inside a diamond that is in air?
SSSSS [86.1K]

Answer:

C) 24.4°

Explanation:

let nd = 2.419 be the index of refraction of diamond and na  = 1.0 be the index of refraction of air  and ∅c be the critical angle.

according to Snell's Law:

sin(∅c) = na/nd

sin(∅c) = (1.0)/(2.419)

      ∅c = 24.4°

4 0
3 years ago
Other questions:
  • Do all rocks stay the same throughout their life time
    13·2 answers
  • The light intensity incident on a metallic surface with a work function of 3 eV produces photoelectrons with a maximum kinetic e
    10·1 answer
  • A 7.1 cm diameter horizontal pipe gradually narrows to 5.4 cm . When water flows through this pipe at a certain rate, the gauge
    6·1 answer
  • The speed of an ostrich is measured to be 63 km/h. What is this speed in meters per second?
    14·1 answer
  • John is gardening and finds a tree root in the soil. He decides he will try to pull it out. He grabs onto it and uses a force of
    9·1 answer
  • Hold a pencil in front of your eye at a position where its blunt end just blocks out the Moon. Make appropriate measurements to
    9·1 answer
  • Volcanic mountains can only form on the ocean floor?<br><br> True<br><br> False
    6·1 answer
  • Carbon and oxygen react to form carbon dioxide what are the products?
    15·2 answers
  • Abid is the hare who runs fast and takes long rest while Gautam runs slow but takes short rest. Abid can run at 5 ms−1 while Gau
    6·1 answer
  • A reagent is added to the blue solution to identify the copper 2 ions name the blue solution​
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!