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
Marina CMI [18]
3 years ago
11

What is the wavelength of an earthquake wave if it has a speed of 7 km/s and a frequency of 3 Hz?

Physics
1 answer:
Phantasy [73]3 years ago
5 0
V=fλ
7=3xλ
λ=7÷3
λ=2.333km
You might be interested in
Compare and contrast the geocentric view of the solar system with the heliocentric view of the solar system
Mandarinka [93]
This is fairly easy. The earlier view of the solar system (geocentric) was all based on how other planets and the sun were constantly revolving the earth and we were completely stationary. The Heliocentric view has been proved to be accurate, and it is that the sun is stationary and the planets are revolving it. The similarities are that in that time, it was a continued belief that the planets were the Roman Gods, i.e. Jupiter, Neptune. Another thing is that they were correct in the Geocentric theory with the thought that the planets revolved around something.
7 0
3 years ago
if you exert 10.0 N of force to compress a spring 50 cm from its equilibrium point, then what is the spring constant?
Olegator [25]
The answer would be: b. The spring constant is 20 N/m
4 0
3 years ago
If our atmosphere had a uniform density of 1.25 kg/m3 all the way up to a border with empty space above, that border would be An
ArbitrLikvidat [17]

Answer:

The border is 8km above sea level.

Explanation:

We know that:

Density = 1.25 kg/m^3

Pressure = 10^5 N/m^2

g = 10m/s^2

Now, suppose that we have a virtual rectangle, such that its bases have an area of 1m^2 and the rectangle has a height equal to H.

This virtual figure has a volume V = 1m^2*H, and it is filled with air (which we know that has a density 1.25 kg/m^3)

Then the total mass inside that volume is:

M = (1.25 kg/m^3)*V = (1.25 kg/m^3)*(1m^2*H)

The weight of this mass is:

W = g*M = (10m/s^2)*(1.25 kg/m^3)*(1m^2*H)

And if we divide the weight in a given surface, let's say 1 m^2, we get the pressure per square meter, which we know is equal to  10^5 N/m^2

then:

P = 10^5 N/m^2 = (10m/s^2)*(1.25 kg/m^3)*(1m^2*H)*(1/m^2)

Whit this equation we can find the value of H.

10^5 N/m^2 = (10m/s^2)*(1.25 kg/m^3)*(1m^2*H)*(1/m^2)

10^5 N =  (10m/s^2)*(1.25 kg/m^3)*(1m^2*H)

(10^5 N)/(10 m/s^2) = (1.25 kg/m^3)*(1m^2*H)

(10^4 kg) = (1.25 kg/m^3)*(1m^2*H)

(10^4 kg)/( 1.25 kg/m^3) = 1m^2*H

8,000 m^3 = 1m^2*H

(8,000 m^3)/(1m^2) =H

8,000 m = H

And we want this answer in km, knowing that 1,000m = 1km

8,000m = 8km = H

The border is 8km above sea level.

4 0
2 years ago
How many nanometers is 0.0357 m?
tangare [24]

Answer:

35700000

Explanation:

multiply the meter value by 1e+9

3 0
3 years ago
Read 2 more answers
Consider two identical wave pulses on a rope having a fixed end. Suppose the first pulse reaches the end of the rope, is reflect
jek_recluse [69]

Answer:

zero

Explanation:

Consider two identical wave pulses on a rope having a fixed end. Suppose the first pulse reaches the end of the rope, is reflected back, and then meets the second pulse, both waves will be out of phase by π radians. Therefore, they form destructive interference and hence the amplitude of  the resultant pulse would be zero.

4 0
3 years ago
Other questions:
  • A spring stretches by 0.0208 m when a 3.39-kg object is suspended from its end. How much mass should be attached to this spring
    7·1 answer
  • MATHPHYS PLEASE HELP
    7·2 answers
  • Is winter eye grass autotrophic
    15·2 answers
  • Two bran muffins are sitting on a table at room temperature.
    13·1 answer
  • While running, a person dissipates about 0.60 J of mechanical energy per step per kilogram of body mass. If a 61 kg person devel
    14·1 answer
  • Please help!!!
    6·1 answer
  • A closed container is filled with oxygen. the pressure in the container is 425 kpa . what is the pressure in millimeters of merc
    5·1 answer
  • Which example would most likely decrease friction?
    8·1 answer
  • The dentisty of an object relies on both the _________ of the object.
    13·1 answer
  • How do Newton’s laws of motion explain why it is important to keep the ice smooth on a hockey rink so that players can pass a pu
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!