If earth suddenly contracts to 0.5 times of its present radius, then the length of the day becomes

Mass remaining constant, if the earth suddenly contracts to one third of its present radius, the length of the day would be shorted by

Mass remaining constant, if the earth suddenly contracts to one third .of its present radius, the length of the day would be shortened by

If the earth suddenly contracts to one third of its present radius, how much would the day be shortened ?

If the radius of the earth contracts to half of its present radius , then the length of the day will be (if the mass of the earth remaining same)

If Earth contracts to half of its present radius what would be the length of the day at equator?

If the earth suddenly contracts by one-fourth of its present radius, by how much would the day be shortened?

If earth suddenly contracts by 1/2 of its present radius by how much would the day be decreased ?

If the mass of earth and radius suddenly become 2 times and 1//4th of the present value, the length of the day becomes