A figure skater jumps into the air with their arms extended and an initial angular speed of 4.0 rev/s. The skater pulls their arms in, increasing their angular speed to 6.0 rev/s. By what factor did the skater’s moment of inertial about their pivot axis change when they pulled in their arms? 2325 E4Q12.png

A 175.0 g uniform meter stick used as a balance has masses 325.0 g at the 90.0 cm position and 200.0 g at the 25.0 cm position. Where should the meter stick be pivoted so the system is balanced?

Determine the tension in the string when the mass is started from rest. (moment of inertia of a disk = ½ mass X radius2) 2325 E4Q4.png

A 15.0 kg rigid rod,1.00 m in length, joins masses of 4.00 kg and 3.00 kg at each end. The combination rotates in the xy plane about a pivot through the center of the rod. If the masses are moving with a speed of 12.0 m/s, what torque applied to the system would be needed to bring the system to rest in 8.0 s?   (moment of inertia of a rod pivoted about the center = 1/12 mass x length2) 2325 E4Q7.png

A parallel plate capacitor has an area of A =

Which is the oxaphosphetane intermediate? ©GMU@X@user.pk_string@X@ ©GMU@X@user.pk_string@X@ ©GMU@X@user.pk_string@X@ ©GMU@X@user.pk_string@X@ ©GMU@X@user.pk_string@X@  

Cyclic esters are also called as…….

Which of the following condition cannot be used for the aldehyde preparation? ©GMU@X@user.pk_string@X@  

What is the product?   ©GMU@X@user.pk_string@X@ ©GMU@X@user.pk_string@X@ ©GMU@X@user.pk_string@X@  

Starting from the center structure, which reagents would you need to carry out the following transformation?   ©GMU@X@user.pk_string@X@ ©GMU@X@user.pk_string@X@ ©GMU@X@user.pk_string@X@ ©GMU@X@user.pk_string@X@