<h3>Hi!</h3>
The correct answer is B.
<h3>Explanation</h3>
Astronomers use both apparent magnitude and absolute magnitude to define how bright a star is. By way of apparent magnitude, astronomers gauge how bright the star seems from the Earth, and b way of absolute magnitude, astronomers gauge how bright the star seems from 10 parsecs/32.6 light years which is a set standard distance.
<h3>Hope this helps</h3>
The answer is refracts parallel to the axis of the lens
Answer:
(a) It will take 12.82 sec to come into rest
(b) After calculation distance is 737.15 m which is less than 800 m so jet can land on the island
Explanation:
(a) When the jet lands at the ground its velocity is 115 m/sec
So initial velocity u = 0 m/sec
Finally jet will stop so its final velocity will be zero v = 0 m/sec
Maximum acceleration
So minimum time,
So
t = 12.82 sec
(b) Average speed
Distance traveled in 12.82 sec =
As this distance is less than 800 m so jet can land on the island
Answer:
11 PM of the same day.
Explanation:
As the earth rotates, big dipper also seems to circulate around the sky near the north star. When we look at it from ground it appears to us as it is at different angels. They usually complete a full circle once a day in approximately 23 hours.
Answer:
Explanation:
The formula for momentum is:
(<em>p</em> is momentum, <em>m</em> is mass, and <em>v </em>is velocity)
Let's rearrange the formula for velocity, or v.
Velocity can be found by dividing the momentum by the mass.
The momentum is 180 kilograms meter per second. The mass of the boy is 40 kilograms.
Substitute the values into the formula.
Divide. Note that the kilograms or "kg" will cancel each other out.
The velocity of the boy is <u>4.5 meters per second.</u>