If the object, ends up with a positive charge, then it is missing electrons. if it is missing electrons, then it must have been removed form the object during the rubbing process.
Answer:
D. Improving their design to make it easier to recycle them when they are no longer useful.
Explanation:
Just took the test on (APEX)!!
The most important mathematical relationship between voltage, current and resistance in electricity is the Ohm's law: I = V/R<span>,</span>
<span>(current=voltage/resistance). We can see, that
The magnitude of the electric current is directly proportional to the voltage of the electric field.</span>
Answer:
D. agrarian
Explanation:
The agrarian society is a society that is strictly revolving around the agriculture and animal farming for its survival. In this type of society, the people are only engaged in producing food, be it by planting and raising certain crops or breeding domesticated animals. The main purpose of this type of society is to be able to produce enough food for the whole year, so it is a self maintaining society that consumes as much as it produces. The situation described about Ken is a reflection of this type of society.
Explanation:
Hydrogen is used as a fuel because it has a high calorific value per molecule when burned in air and also burns explosively. When burned in air, it reacts with oxygen to produce water which is safe for the environment. This same property of hydrogen of high explosiveness makes it difficult to store safely.
Hydrogen can be produced through the electrolysis of water. However this is high energy consuming. The most common method is called steam-methane reforming. Methane from hydrocarbon is mixed with steam under high pressure and reacts to produce hydrogen and carbon monoxide.
Diesel and petrol and other petroleum products when burned produce carbon dioxide which is a greenhouse gas. Greenhouse gases when increasing in the atmosphere, cause greenhouse effect that results in global warming.
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