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2 answers:
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Answer:
2.656 km
Explanation:
Velocity of sound in the air = 332 m/s
time t= 8 sec
=2656 meters =2.656 km
therefore, distance = 2.656 km
Florida has lightening quite often because
Florida receives a lot of heat through out the year, air close the ground is warmed and frequent sea breezes (Florida is surrounded by seas and oceans) provide the necessary lift and moisture for the formation of thunderstorms. This why lightning is common Florida
Answer: 1) Angular separation equals 0.0000031 degrees
2) Angular separation in arc -seconds equals 0.011156"
Explanation:
For 2 stars separated by a distance 'S' and at a distance 'D' from the earth the angular separation in radians is given
Applying values we get
Now we know that 'π' radians equals 180 degrees thus the above value in degrees shall be equal to
2)
The angular separation in arc- seconds is given by
Answer:
A and B are equally likely
Explanation:
The conditional probability is defined as follows:
where:
is the probability for X to occur, given that Y has occurred
is the probability that both X and Y occur at the same time
is the probability for Y to occur
Given two events A and B, we have:
and
In this problem, we are told that
Which means that:
Simplifying, we get:
which means that A and B are equally likely.