How many complete wavelengths are present in the

sound wave shown?

1

2

3

4

5

6

Scientists use what chart to compare the hardeness of minerals

Which statements accurately describe Earth's magnetic field? Check all that apply.

How long will it take to go 150,000 m traveling at 50 km/hr

How does gravity create inertia

This is the process of water changing from a gas to a liquid. You will see clouds forming when this happens.

A scientist mixes an unknown powder into a beaker of water. He then uses an indicator and finds that the pH of the resulting solution is 8.5. What can he infer from this observation? The unknown powder was acidic.

Which factors affect the resistance of a material? Check all that apply. length currer thickness temperature voltage

Is the air a good conductor or electricity or a good insulator?

Which lists only metalloids? arsenic (As), sulfur (S), and polonium (Po) antimony (Sb), tellurium (Te), and gallium (Ga) boron (B), germanium (Ge), and tellurium (Te) polonium (Po), aluminum (Al), and silicon (Si)

3. A traffic light is suspended by two cables. What should be the angle between the cables (0) so that the tension in each cable will be equal to the weight of the traffic signal light (W=T, = T) ?