Question 7(Multiple Choice Worth 2 points) (07.02 MC)
With the help of a trusted adult, Karissa is connecting objects that conduct electricity with wires. So far she has a battery, a light bulb, and three other objects. Which of the following
objects will conduct electricity well?
2
1. Gold ring
II. Steel paper clip
III. Plastic pipe
Ol only
Oill only
O I and II
70
O II and III

The cerebellum controls? thirst sensations sleep-wake cycles hand-eye coordination heart rate and pulse

Henry, whose mass is 95 kg, stands on a bathroom scale in an elevator. the scale reads 830 n for the first 2.4 s after the elevator starts moving, then 930 n for the next 2.4 s. part a what is the elevator's speed 4.8 s after starting? express your answer with the appropriate units.

Afisherman notices that his boat is moving up and down periodically without any horizontal motion, owing to waves on the surface of the water. it takes a time of 2.20 s for the boat to travel from its highest point to its lowest, a total distance of 0.670 m . the fisherman sees that the wave crests are spaced a horizontal distance of 5.80 m apart. (a) how much is the wavelength? (b) find the period of the wave. (c) how fast are the waves traveling? (d) what is the amplitude a of each wave?