Here is the main thing is medium. In the free boundary wave face the air medium, but in a fixed boundary wave face different medium. The change of medium effect on the change of the reflection of wave.
Geology is the study of the Earth, the materials of which it is made, the structure of those materials, and the processes acting upon them.
Answer
given,
distance of first satellite = 48,000 Km
distance of second satellite = 64,000 Km
orbital period = 6.39 day
Using equation of time period
now, from the above equation we can say that only variable is Time period and r is the radii of orbit.
from the first satellite
for second satellite
Answer:
set A is showing the same position in both graphs
I'd say C to avoid situations in which alcohol is present and remain alcohol free
Refusal skills help people, most likely children it helps them avoid participating in risky behaviors and choices. such like alcohol in this case
Refusal skills Helps them resist peer pressure and help them make right choices
Hope that helps alrighty bye now!
