PROCEDUERS: 1. Connect the circuit as shown in fig. 1 using box resistance.

2. Choose E-6v.

3. Measure the current and voltage across t

4. Calculate Rosing Olm's law.

5. Use the ohmmeter to measure R.

6. Repeat 2 to 5 for fig.2.

Discussion

1. Why using fig. I to measure large resistances while fig2 to measure low resistances

2. Compare between the measurements using ohmmeter and voltmeter antmeter meathod.

Avery hard rubber ball (m = 0.5 kg) is falling vertically at 4 m/s just before it bounces on the floor. the ball rebounds back at essentially the same speed. if the collision with the floor lasts 0.05 s, what is the average force exerted by the floor on the ball?

Since the energy was not raising the temperature of the water during these segments, what was the energy used to do instead? your answer must include an explanation of what is happening to the molecules.

Complete these sentences. if a roller coaster train has a potential energy of 1,500 j and a kinetic energy of 500 j as it starts to travel downhill, its total energy isj. once the roller coaster train gets closer to the bottom of the hill, its kinetic energy increases to 1,100 j, and its potential energy decreases to j. when the train reaches the bottom of the track and is traveling along the ground, its kinetic energy isj.