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
Paladinen [302]
3 years ago
15

Which waves require a material medium for transmission? a.) light waves b.) radio waves c.) sound waves d.) microwaves

Physics
1 answer:
shepuryov [24]3 years ago
5 0

Answer:

mechanical waves require a medium

You might be interested in
Use wave equation calculate the speed of sound in the air if frequency of 110 hz has a wave length of 3 m
kirill115 [55]
Answer = 330 m/s

The wave equation is as follows:

Wave speed = wavelength x frequency

The known values are:
Wavelength = 3m
Frequency = 110 Hz

Substitute the known values into the wave equation to find the wave speed.

Wave speed = 3 x 110

Wave speed = 330 m/s
8 0
2 years ago
What is an electronic signal
rosijanka [135]

where are the answer choises

6 0
3 years ago
Read 2 more answers
A square plate of side 9 m is submerged in water at an incline of 60∘ with the horizontal. Its top edge is located at the surfac
Tpy6a [65]

Answer:

The force on one side of  the plate is 3093529.3 N.

Explanation:

Given that,

Side of square plate = 9 m

Angle = 60°

Water weight density = 9800 N/m³

Length of small strip is

y=\dfrac{\Delta y}{\sin60}

y=\dfrac{2\Delta y}{\sqrt{3}}

The area of strip is

dA=\dfrac{9\times2\Delta y}{\sqrt{3}}

We need to calculate the force on  one side of  the plate

Using formula of pressure

P=\dfrac{dF}{dA}

dF=P\times dA

On integrating

\int{dF}=\int_{0}^{9\sin60}{\rho g\times y\times 6\sqrt{3}dy}

F=9800\times6\sqrt{3}(\dfrac{y^2}{2})_{0}^{9\sin60}

F=9800\times6\sqrt{3}\times(\dfrac{(9\sin60)^2}{2})

F=3093529.3\ N

Hence, The force on one side of  the plate is 3093529.3 N.

7 0
3 years ago
An airplane is flying through a thundercloud at a height of 2 000 m. (this is a very dangerous thing to do because of updrafts,
tester [92]
It is given that an<span> airplane is flying through a thundercloud at a height of 2000 m.
</span><span>
Since the parity of charges is opposite and the airplane lies between the two charges and both the electric fields are in the same direction at the plane. Therefore, the magnitudes of the electric field at the aircrafts will add up.
Now, check the image to see the calculations:

</span>

4 0
3 years ago
Read 2 more answers
The energy of a photon was found to be
Vaselesa [24]

now you can yourself know to which part of electromagnetic spectrum the photon belongs....

not fitting sharply in green

4 0
3 years ago
Read 2 more answers
Other questions:
  • Two satellites are orbiting earth at different altitudes. Which satellite orbits at a higher speed v around earth?
    6·1 answer
  • HELP ME PLZ 30 POINT AND A MARK
    6·1 answer
  • Alpha particles Ichargeq q = + 2e mass m=6.8*10^ -27 kg) at 17*10^ 4 m/s What magnetic field strength would be required to bend
    12·1 answer
  • What is the difference between kinetic and mechanical energy?
    11·2 answers
  • A ball is whirled on the end of a string in a horizontal circle of radius R at constant speed v. Complete the following statemen
    11·1 answer
  • The fast train known as the TGV (Train à Grande Vitesse) that runs south from Paris, France, has a scheduled average speed of 21
    11·1 answer
  • The diagram below illustrates the law of reflection.
    15·1 answer
  • You volunteer for chalkboard cleaning duty and you get to work with the erasers. As you rub the dust off of the chalkboard, whit
    10·1 answer
  • A 1.5kg cart moves along a track at 0.20m/s until it hits a fixed bumper at the end of the track. Find the average force exerted
    8·1 answer
  • Photosynthesis and respiration are best described as
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!