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
kirill115 [55]
3 years ago
7

What is the wavelength of an electromagnetic wave that travels at 3 10 m/s and has a frequency of 60 mhz? (1 mhz = 1,000,000 hz)

?
Physics
2 answers:
Dahasolnce [82]3 years ago
8 0
V = 310 m/s
f = 60 MHz = 60 × 10^6 Hz
v = xf
x = v/f
x = 310/(60 × 10^6) m
x = 5.166667 × 10^(−6) m
kolezko [41]3 years ago
8 0

Answer:

\lambda = 5 m

Explanation:

As we know the electromagnetic waves can travel through the vacuum with speed

c = 3 \times 10^8 m/s

now we also know that the frequency of the electromagnetic waves is given as

f = 60 MHz

so the wavelength of the electromagnetic waves is given as

\lambda = \frac{c}{f}

so it is given as

\lambda = \frac{3 \times 10^8}{60 \times 10^6 Hz}

\lambda = 5 m

You might be interested in
TRUE OR FALSE
katen-ka-za [31]

Answer:

True

Explanation:

When an object is held higher, it has more potential energy because more energy is stored from its higher position to swing further than it would have, had it been held lower.

7 0
3 years ago
Read 2 more answers
A 35-mm single lens reflex (SLR) digital camera is using a lens of focal length 35.0 mm to photograph a person who is 1.80 m tal
olganol [36]

Answer:

a) 35.44 mm

b) 17.67 mm

Explanation:

u = Object distance =  3.6 m

v = Image distance

f = Focal length = 35 mm

h_u= Object height = 1.8 m

a) Lens Equation

\frac{1}{f}=\frac{1}{u}+\frac{1}{v}\\\Rightarrow \frac{1}{f}-\frac{1}{u}=\frac{1}{v}\\\Rightarrow \frac{1}{v}=\frac{1}{35}-\frac{1}{3600}\\\Rightarrow \frac{1}{v}=\frac{713}{25200} \\\Rightarrow v=\frac{25200}{713}=35.34\ mm

The CCD sensor is 35.34 mm from the lens

b) Magnification

m=-\frac{v}{u}\\\Rightarrow m=-\frac{35.34}{3600}

m=\frac{h_v}{h_u}\\\Rightarrow -\frac{35.34}{3600}=\frac{h_v}{1800}\\\Rightarrow h_v=-\frac{35.34}{3600}\times 1800=-17.67\ mm

The person appears 17.67 mm tall on the sensor

7 0
2 years ago
The diffusion constant for oxygen diffusing through tissue is 1.0 × 10-11 m2/s. In a certain sample oxygen flows through the tis
Eduardwww [97]

Answer:

m' = 1 x 10⁻⁶ kg/s

Explanation:

Given that

Diffussion constant = 1 x 10⁻¹¹

Mass flow rate ,m = 2 x 10⁻⁶ kg/s

The diffusion is inversely proportional to the thickness of the membrane and therefore when the thickness is doubled, the mass flow rate would become half.

So new flow rate m'

m'=\dfrac{m}{2}

m'=\dfrac{2\times 10^{-6}}{2}\ kg/s

m' = 1 x 10⁻⁶ kg/s

6 0
3 years ago
What is the initial velocity of the object represented by the graph?
Arturiano [62]

Initial velocity of the object: 5 m/s

Explanation:

The figure in the problem is missing: find it in attachment.

The graph in the figure represents the velocity of an object (v) versus the time passed (t).

Here we are asked to find the initial velocity of the object.

This means that we have to find the velocity of the object when the time is zero, so when

t = 0

By looking at the corresponding value on the y-axis (velocity), we see that when t = 0, then

v = 5 m/s

Therefore, the initial velocity of the object is 5 m/s.

Learn more about velocity:

brainly.com/question/5248528

#LearnwithBrainly

5 0
3 years ago
Read 2 more answers
A ray of light traveling in water hits a glass surface. The index of refraction of the water is 1.33, and that of the glass is 1
kirza4 [7]

Answer:

\mu=41.5\textdegree

Explanation:

From the question we are told that:

Water index of refraction i_w=1.33

Glass index of refraction i_g=1.50

Generally the equation for Brewster's law is mathematically given by

 \theta=tan^{-1}(\frac{i_g}{i_w})

 \theta=tan^{-1}(\frac{1.50}{1.33})

 \theta=48.44 \textdegree

Therefore Angle of incident to plane  \mu (normal at 90 degree to the surface)

 \mu=90\textdegree-\theta

 \mu=90\textdegree-48.44\textdegree

 \mu=41.5\textdegree

8 0
2 years ago
Other questions:
  • When bonds between atoms are broken or formed, what is the outcome? A. a physical change B. an element increasing in size C. a c
    15·1 answer
  • If the sun, Earth and moon are lined up as shown as above, the Earth
    8·1 answer
  • If javier has a car thats 250,000 kg and a forse of 300 newtons.what would be the accleration.
    5·1 answer
  • An 8-hour exposure to a sound intensity level of 90.0 dB may cause hearing damage. What energy in joules falls on a 0.800-cm-dia
    9·2 answers
  • What is the kinetic theory of matter? How does it relate to the motion of molecules?
    15·1 answer
  • A car is traveling at 75 m/s. 50 seconds later it is traveling at 25 m/s. What is the car’s acceleration?
    12·1 answer
  • Do noble gases lose or gain electrons to get a full valence shell?
    14·1 answer
  • An airplane flies 1000 miles in 2 hours. What is its average speed in miles per hour?
    11·1 answer
  • A grape is thrown straight up in the air. If it was thrown at 2 m/s, how high will it go in the air?
    10·2 answers
  • Besides a reduction in friction, the only way to increase the amount of work output of a machine is to _____ the work input. Dec
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!