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
S_A_V [24]
4 years ago
6

Please help on this one somebody?

Physics
1 answer:
coldgirl [10]4 years ago
8 0

7.5 x 10⁻¹¹m. An electromagnetic wave of frecuency 4.0 x 10¹⁸Hz has a wavelength of 7.5 x 10⁻¹¹m.

Wavelength is the distance traveled by a periodic disturbance that propagates through a medium in a certain time interval. The wavelength, also known as the space period, is the inverse of the frequency. The wavelength is usually represented by the Greek letter λ.

λ = v/f. Where v is the speed of propagation of the wave, and "f" is the frequency.

An electromagnetic wave has a frecuency of 4.0 x 10 ¹⁸Hz and the speed of light is 3.0 x 10⁸ m/s. So:

λ = (3.0 x 10⁸ m/s)/(4.0 x 10¹⁸ Hz)

λ = 7.5 x 10⁻¹¹m

You might be interested in
Some snakes have special sensory organs that detect the infrared region of the electromagnetic spectrum. Compared with human vis
Volgvan

Answer: lower frequency and a longer wavelength

7 0
3 years ago
Read 2 more answers
If the maximum tension in the simulation is 10.0 N, what is the linear mass density (m/L) of the string
vovikov84 [41]

Complete Question

The speed of a transverse wave on a string of length L and mass m under T is given by the formula

     v=\sqrt{\frac{T}{(m/l)}}

If the maximum tension in the simulation is 10.0 N, what is the linear mass density (m/L) of the string

Answer:

(m/l)=\frac{10}{V^2}

Explanation:

From the question we are told that

Speed of a transverse wave given by

v=\sqrt{\frac{T}{(m/l)}}

Maximum Tension is T=10.0N

Generally making (m/l) subject from the equation mathematically we have

v=\sqrt{\frac{T}{(m/l)}}

v^2=\frac{T}{(m/l)}

(m/l)=\frac{T}{V^2}

(m/l)=\frac{10}{V^2}

Therefore the Linear mass in terms of Velocity is given by

(m/l)=\frac{10}{V^2}

8 0
3 years ago
Jane is sliding down a slide. What kind of motion is she demonstrating?
Over [174]
When Jane is sliding down a slide, she is demonstrating translational motion. 
5 0
3 years ago
What is the power of a hair dryer if it uses 72,000 joules energy in 60.0 seconds
Vladimir [108]
Power=Energy
72,000/60 = 1200 watts 
:)
8 0
4 years ago
Read 2 more answers
7. A box is pulled straight across the floor at a constant speed. It is pulled with a horizontal force of 48 N.
Leya [2.2K]

Answer:

a)Taking into consideration Newton’s second law, we know that

Net_Force = mass * acceleration

Since the box is pulled at constant speed, the acceleration is equal to zero.

This means that

Net_Force  = 0 N

b) Force of friction

The net force is equal to the sum of all forces,

Net_Force   = Force_applied - Friction

We found that Net_Force  = 0, which means

Friction = Force_applied = 48 N

c) If the box comes to a stop. And the applied force becomes zero, the friction force becomes also zero.

Friction  = 0 N

4 0
3 years ago
Other questions:
  • What is the middle layer of the sun atmosphere
    7·2 answers
  • A juggler throws a bowling pin straight up with an initial speed of 8.20 m/s. How much time elapses until the bowling pin return
    8·1 answer
  • Describe all the ways that newtons laws can apply in a car crash
    13·1 answer
  • What is the de Broglie wavelength of an electron that strikes the back of the face of a TV screen at 1/10 the speed of light? __
    14·1 answer
  • Fire trucks have the word FIRE written two ways, as seen here, on the front of the truck. Why is that?
    10·2 answers
  • Which planet has a density that is less than the density of liquid water?
    15·1 answer
  • A car increases its speed from 20km/hr to 50km/hr in seconds. Its acceleration is _____.
    7·1 answer
  • How many miles per day can you walk at a MODERATE Intensity level and your heart rate is 170?
    9·1 answer
  • In Space, an astronaut releases a wrench from his hand. The wrench has a mass of 4 grams and is traveling with a velocity of -15
    15·1 answer
  • The _____ of an object consists of its speed and direction.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!