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

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

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

Density remaining constant, if earth contracts to half of its present radius, duration of the day would be (in minutes)

Density remaining constant, if earth contracts to half of its present radius, duration of the day would be (in minutes).