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
Y_Kistochka [10]
3 years ago
14

Radio waves and microwaves are similar because they both have

Physics
1 answer:
tekilochka [14]3 years ago
4 0

The correct answer is

b. low frequencies and low energy.

In fact, microwaves and radio waves have frequency up to 10^{10}-10^{11} Hz, which are really low compared, for instance, to the frequency of gamma rays (10^{20} Hz). Moreover, the energy of an electromagnetic wave is directly proportional to its frequency:

E=hf

where h is the Planck constant and f the frequency; therefore, low frequency means also low energy.

You might be interested in
The part of the scientific method where we record data is the
tensa zangetsu [6.8K]
The answer is d. experiment
3 0
3 years ago
Read 2 more answers
Compare and contrast electric motors and generators.
Marrrta [24]
Electric motors require electricity to move the motor parts and do work (like an electric fan).

Elecgric generators actually burn diesel fuel to spin a motor around and around and around to GENERATE, or MAKE, electricity that you can then use to power your fans and lights in your house.
6 0
3 years ago
Read 2 more answers
A bumblebee darts past at 3 m/s. The frequency of the hum made by its wings is 152 Hz. Assume the speed of sound to be 342 m/s.
Veronika [31]

It'll be 152 Hz at the exact instant the bumblebee
is right at the tip of your nose, on his way past you.

Before he gets there, while he's coming at you,
he sounds like a frequency higher than 152 Hz.

After he passes by, and is going away from you,
he sounds like a frequency lower than 152 Hz.

8 0
3 years ago
Read 2 more answers
A source emits sound uniformly in all directions. There are no reflections of the sound. At a distance of 12 m from the source,
yaroslaw [1]

Answer:

1.58 W

Explanation:

Since the sound spreads uniformly in all directions, it must be in a form of a circle with radius of 12 m. So the area of the circle is

A = \pi r^2 = \pi 12^2 = 452.389 m^2

From the intensity of the sound we can calculate the power at 12 m

P = AI = 452.389 * 3.5\times10^{-3} = 1.58 W

7 0
3 years ago
Can you explain why number 3 is correct?
lukranit [14]
No waves because Q19 waves would going at the surface at regions
7 0
2 years ago
Other questions:
  • A ball weighing 1 lb is attached to a string 2 feet long and is whirled in a vertical circle at a constant speed of 10 ft/sec.
    14·1 answer
  • Static discharges occur when
    15·2 answers
  • The word centripeta/means "<br> -seeking."<br> Answer here
    9·1 answer
  • The sunlight that reaches Earth is generated by a transformation of _____.
    14·1 answer
  • 28. Someone throws a rubber ball vertically upward from the roof of a building 8.00 m in height. The ball rises,
    14·1 answer
  • Mention the digestive enzymes produced in the stomach and food nutrients they act on​
    11·1 answer
  • Hen Mount St. Helen's erupted in 1980, it sent volcanic ash 18 kilometers into Earth's atmosphere. Which portions of Earth's atm
    12·1 answer
  • When do i know if the acceleration (a) in newtons second law is 0? ​
    14·1 answer
  • Pleas answer if you want brainliest I need help fast
    12·2 answers
  • On which of the following is si based
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!