Question 4 of? Click to see additional instructions Astronomers predict that, in about 5 billion years, the sun will become a white dwarf star, with a density ofabout 5 x 105 that of its current density. if the sun does not lose any mass in the process, then its rotation period will change from 30 days to minutes. (Assume the sun has uniform density, and the dwarf star also has uniform density.) Question 5 of? A 76 g metre stick is nailed to a table by means of a nail in the middle, so that the metre stick lies WestEast. Two forces are then applied to the metre stick: 0.67 N North West at the west end of the metre stick, and 0.22 N at 60 degrees East of North at the east end. The angular acceleration of the metre stick has a magnitude of rad/sZ Question 6 of? The direction ofthe angular acceleration in Q5 is O A. North 0 B. South Reset Selection Question 7 of7 A student sits on a rotating stool, holding 2 kg in each hand at a distance of 58 cm from the axis of rotation of the stool. The moment of inertia ofthe student and the stool combined (but excluding the i kg masses) is 0.86 kg m3. Ifsomeone pushed one of the masses with i2 N for 0.6 s, the student's maximum angular speed would be rad/s. lfthe student then moved the masses so that they were 8 cm from the aXis of rotation, her maximum speed would be rad/s