Forget the numbers and think about how speed works for a second. If a plane flies at 600km/h, this means that it will fly exactly 600 km in 1 hour. So, how long would it take to fly 2400 km??
2400/600 = 4hours.
Do this for all three and add up the hours.
Total time: 12 hours
Average speed is the total distance / total time.
So,
Add up all the distances and divide by 12.
(2400+1200+2500) / 12
Average speed: 508.33333333 km/h
When light strikes the inside surface of a smooth, curved mirror the light will bounce back toward a single spot. The reason it does this is because mirrors reflect light and other objects.
Hope this helps! Please make my answer the brainliest!
Answer:
K= 1/2 mv^2
m= 2K/v^2= 2250/ 225= 10 Kg
Answer:
S Waves (Secondary waves)
Explanation:
Due to exccess of the energy inside the earth when the tectonic plates begin to slide or fracture then the energy is released in the form of seismic waves, this causes the earth-quake.
Two types of seismic waves are generally responsible for the earth quakes:
<u>Body waves are of two types:</u>
- Primary waves (P-waves)
These are the fastest of all the waves involved in the earth-quake which travel at a speed of 1.6 km to 8 km per second.
They can pass trough solids, liquids and gases. They arrive at the surface as an instant thud.
2. Secondary waves (S-waves)
They can only pass through the solids and they move slower than the P-waves.
As S-waves move, they displace rock particles outward, pushing them perpendicular to the path of the waves resulting in the first period of rolling associated with earthquakes.
