A17 g audio compact disk has a diameter of 12 cm. the disk spins under a laser that reads encoded data. the first track to be read is 2.3 cm from the axis; as the disk plays, the laser scans tracks farther and farther from the center. the part of the disk directly under the read head moves at a constant 1.2 m/s. when a disk is inserted, it takes 2.4 s to spin up from rest.
1. what is the torque of the motor?

To protect all four receptacles on a branch circuit that surrounds a swimming pool, you would install which of the following configurations? a. gfci feed-through receptacle at the end of the load's circuit b. gfci-terminated receptacle at the beginning of the load's circuit c. gfci feed-through receptacle at the beginning of the load's circuit and the other receptacles connected to the load side of that receptacle d. gfci-terminated receptacle at each end of the load's circuit

Determine el momento angular de un rueda de 3000g moviendose a 10m/s con un radio de giro de 400cm

4. a 75.0 g piece of ag metal is heated to and dropped into 50.0 g of water at the final temperature of the mixture is what is the specific heat capacity of silver? 5. a 465 g chunk of iron is removed from petrucci, ralph h.. general chemistry (p. 290). pearson education. kindle edition.