Sebuah poros berdiameter 15 cm berputar dengan kecepatan 600 rpm di dalam sebuah bantalan berdiameter 15,02 cm dan panjang 30 cm. Ruang di antara keduanya diisi dengan OLI SAE-30 pada suhu 30oC yang viskositasnya μ = 0,20 kg/m. s. Berapakah Torsi yang dibutuhkan untuk mengatasi hambatan viskos dalam bantalan itu.

Joel wants to buy a new tablet computer fram a store having a 20% off sale on all tablets. the tablet he wants has an original cost of $190. he also wants to make sure he has enough money to pay the 5% sales tax. part one joel uses the incorect expression 0.95(190)(0.8) to calculate that the tablet will cost him a total of $144.40. describe his error and write the correct expression part two how much will joel pay for the tablet show your work if you answer this question correctly you will receive a prize of 99 points good luck