3 ohm resistor, an unknown resistor R, and two ammeters are connected as shown with a 12 v source. Ammeter A2 reads a current of 5.0 amperes.

Explain the comparisons between nature and packingtown that appears on pages 81 and 82 answer

Aball with a mass of 275 g is dropped from rest, hits the floor and rebounds upward. if the ball hits the floor with a speed of 2.40 m/s and rebounds with a speed of 1.70 m/s, determine the following. (a) magnitude of the change in the ball's momentum (let up be in the positive direction.)

Which is an advantage of subdividing science into different areas?