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
Alinara [238K]
3 years ago
8

Radio waves travel at 3.00 · 108 m/s. Calculate the wavelength of a radio wave of frequency 900 kHz. (9.00 · 105 Hz.)

Physics
1 answer:
Anuta_ua [19.1K]3 years ago
7 0
V: velocity of wave
f: frequency 
L: wavelenght

v = fL => L = v/f => L = (3x10^8)/(900x10^3) => L = 3.33 x 10^2m
You might be interested in
What are one of the ways the atmosphere recycle gases through interactions with the biosphere?
tino4ka555 [31]

Answer:

Though the process photosynthesis

Explanation:

One of the important ways by which the atmosphere recycle gases through interactions with the the biosphere is by photosynthesis.

The biosphere is the living component on the earth. The atmosphere is the gaseous envelope round the earth.

  • Photosynthesis is the process whereby green plants manufacture their food using carbon dioxide and water in the presence of sunlight to produce glucose and oxygen gas.
  • This way, atmospheric carbon dioxide is exchanged for oxygen gas.

This way, there is a sustained interaction between the atmosphere and biosphere.

3 0
3 years ago
Read 2 more answers
Electrons are made to flow in a wire when there is
Mila [183]

Answer:

The answer is C.

Explanation:

8 0
3 years ago
Read 2 more answers
An engine absorbs 1.69 kJ from a hot reservoir at 277°C and expels 1.25 kJ to a cold reservoir at 27°C in each cycle.
Anna35 [415]

Answer

Given,

Energy absorbed, Q_H = 1.69\ kJ

Energy expels,Q_C =  1.25\ kJ

Temperature of cold reservoir, T = 27°C

a) Efficiency of engine

 \eta = \dfrac{Q_H - Q_C}{Q_H}\times 100

 \eta = \dfrac{1.69 - 1.25}{1.69}\times 100

\eta =26.03 %

b) Work done by the engine

 W = Q_H- Q_C

 W =1.69 - 1.25

 W = 0.44\ kJ

c) Power output

     t = 0.296 s

   P = \dfrac{W}{t}

   P = \dfrac{0.44}{0.296}

   P = 1.486\ kW

8 0
3 years ago
The duckbill platypus and spiny anteater are the only two known
Iteru [2.4K]

Answer:

I believe it is False.

Explanation:

Hope my answer has helped you!

3 0
3 years ago
I need helpppppppppppppppppp!
allsm [11]

Answer:

i think its B

Explanation:

but check it before do it  

3 0
3 years ago
Read 2 more answers
Other questions:
  • A student practicing for a cross country meet runs 250 m in 30 s. What is her average speed?
    11·2 answers
  • Three mountain climbers set out to climb a mountain from the same altitude and all arrive at the same location at the top. Mount
    9·1 answer
  • You are driving your small, fuel-efficient car when you have a head-on collision with a big, fuel-efficient truck that is three
    15·1 answer
  • Here is the situation: A puck is resting on the floor of a large moving van. Assume that the floor of the van is frictionless. T
    9·1 answer
  • A 55-kg skier starts from rest at the top of a ski jump, point A in Fig. 6–48, and travels down the ramp. If fric- tion and air
    14·2 answers
  • What is an example of situational irony in the excerpt?​
    10·2 answers
  • Convert the value of g=9.8m/s^2 into km/hr^2​
    13·1 answer
  • Example of extensive property <br><br> Please fast
    12·1 answer
  • Alfredo leaves camp and, using a compass, walks 4 km E, then 6 km S, 3 km E, 5 km N, 10 km W, 8 km N, and, finally, 3 km S. At t
    10·1 answer
  • A 650-kg roller coaster starts from rest at the top of a 80 m hill.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!