A secondary wave is a type of seismic wave that shakes particles at right angles to their direction of travel.
A seismic wave is a wave that travels through the Earth. It happens because of an earthquake, volcanic eruption, magma movement, a large landslide, and a large man-made explosion that produces low-frequency acoustic energy.
These waves are studied by seismologists and they record the waves using seismometers. In water, they use hydrophones or accelerometers. Seismic waves are different from seismic noise, which is persistent low-amplitude vibration arising from a variety of natural and anthropogenic sources.
The velocity of a seismic wave depends on the type of wave as well as the density and elasticity of the medium. Velocity tends to increase with depth through Earth's crust and mantle but drops sharply going from the mantle to Earth's outer core.
Earthquakes create distinct types of waves with different velocities.
Learn more about seismic here:
#SPJ2
Water and salt. There are many components to it tho
Answer:
D. a city that is the largest and most influential in its region
2 tru or fals The actual motion off objects in the sky depends on the motions
3 tru or fals You can see 5 planets from Earth without a telescope:Mercury, Venus, Mars, Jupiter, and Uranus.
4 tru or false Stars are made of of hydrogen and oxygen.
5 tru or false Earth's rotation on its axis uses seasonal changes in the constellations you can observe.
The average annual temperature in Fairbanks was 4.5 degrees F higher in 2019 than it was during the years 1951-1980. In the case of Fairbanks, the temperature anomaly for the year 2019 was positive, which means that the average annual temperature was higher than the average for the years 1951-1980.
To calculate the temperature anomaly for the year 2019, we need to subtract the average annual temperature for the years 1951-1980 from the average annual temperature for the year 2019.
Here is the calculation:
Average annual temperature for 2019 - average annual temperature for 1951-1980 = temperature anomaly
31.2 degrees F - 26.7 degrees F = 4.5 degrees F
Therefore, the temperature anomaly for the year 2019 in Fairbanks, Alaska is 4.5 degrees F.
This means that the average annual temperature in Fairbanks was 4.5 degrees F higher in 2019 than it was during the years 1951-1980.
The existence of both positive and negative temperature anomalies should be noted. A positive temperature anomaly denotes a higher-than-average temperature, whereas a negative temperature anomaly denotes a lower-than-average temperature.
The average annual temperature in Fairbanks was higher than the average for the years 1951–1980 because the temperature anomaly for the year 2019 was positive.
To know more about Temperature:
#SPJ2
Answer:
4.5
Explanation:
31.2°F (today) –26.7°F (average) = +4.5°F anomaly