Table of Contents
What will be duration of day if Earth shrinks to 1 64?
If the volume of earth suddenly shrinks to 1/64th of its original volume then the radius of the earth will decrease to 1/4th of its original radius. So, duration of the day will be 1.5 hrs.
What is the duration of night time?
There are 24 hours in a day. The day is divided into day(time) and night(-time). Daytime is from sunrise (this varies, but we can say approximately 6am) to sunset (we can say approximately 6pm). Night-time is from sunset to sunrise.
What is duration day?
Besides the day of 24 hours (86,400 seconds), the word day is used for several different spans of time based on the rotation of the Earth around its axis.
What if earth was half its size?
If earth shrinks to half, then it can increase gravity on surface of earth. Hence, the weight of every person on earth will increase. Hence, its clear from this expression that gravity will increase and our weight too.
How long is the day and night?
How long is the day time?
around 24 hours
On Earth, a solar day is around 24 hours. However, Earth’s orbit is elliptical, meaning it’s not a perfect circle. That means some solar days on Earth are a few minutes longer than 24 hours and some are a few minutes shorter.
What is the duration of the day if the Earth shrinks?
If the earth shrinks to half of its radius without changing its mass, the duration of the day will be 11th
What would happen if the Earth’s mass was half its radius?
Because of conservation of angular momentum, the earth’s angular speed would quadruple if its mass was contracted into half its radius. This would mean we would have roughly six hour days (the earth is not a perfect sphere, and gravity would cause further contraction).
Does changing the Earth’s radius change the duration of day and night?
Contrary to the other two answers, changing the Earth’s radius will indeed change the rotational velocity of Earth, and thus the duration of day and night. A common example given is when a figure skater is spinning with arms outstretched. As he/she moves his/her arms in, the skater will start to rotate faster.
What is the angular velocity when the Earth’s radius is half-sized?
Therefore day will reduce to 6 hours. Given that the period of the earth (T) is 86400 seconds (1 day), the angular velocity is a constant. Therefore given that the angular velocity is the same when the Earth’s radius is halfed the period will still be 24 hours.