If an electrostatically charged balloon is brought near other objects, which of the following will occur?
select all that apply.
- it will be attracted to objects with the same charge.
- it will be attracted to objects of the opposite charge.
- it will be attracted to objects with a neutral charge.
- it will be repelled by objects with the opposite charge

Acar of mass 800kg is moving at a speed of 2.2m/s.

Hydroelectricity provides about 7 percent of the electricity generated in the united states. (a) explain how a hydroelectric power plant converts energy stored in water into electricity. (b) identify two factors that determine the amount of electricity that can be generated by an individual hydroelectricity power plant. (c) describe the two main types of land-based hydroelectric power plants. (d) describe two economic advantages and two environmental disadvantages of hydroelectricity.

Many science fiction movies and tv shows have detected using a nuclear weapon to destroy astroids what problems does plait see with this plan