Free insulative sheets and insulative sheets backed by a grounded conductor are the only cases in which it is possible to extract reliable information from a noncontacting measurement of the charged state of an insulator. In both cases, the electric field from the charge is the deciding factor.<span>
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Answer:
the answer should be 550 j because i just did it
Explanation:
all you have to do is add all of them up and get your answer
Answer:
The value is 
Explanation:
Generally the thermal efficiency is mathematically represented as
substituting [ 627°C + 273 = 900K ] for 
and [ 90°C + 273 = 333K ] for 
So
=>
1c. The goal of technology is to improve how people live. For example a toothbrush helps prevent cavities and buildup on our teeth.
2a. Science and technology both help improve our lives. Science gives us the knowledge we need to create technology.
2b. A human prosthetic is an example of technology.
2c. Prosthetics are created though scientific study and research. Technology is used to create the material prosthetics are made of and to help design the prosthetics.
3a. Benefits of pesticides: Keeps bugs away from crops, higher crop yields.
Negatives:
pollution, harmful to health
I got all of them except the last one
Answer:
Matter can be recycled while energy cannot be recycled in an ecosystem.
Explanation:
Energy is lost in form of heat from one organism to another. The major energy in an ecosystem is from the sun (solar energy) which is taken by the producers. Once the sun stops generating energy, life will be difficult. Unlike the sun, matter can be recycled. Living things need non living things to survive. Matter can be 'nutrient' (which is non living). Nutrients are needed for life and growth. Nutrients include water, oxygen, carbon etc. An ecosystem nutrient cycle shows that decomposes are vital. Decomposers release nutrients when they break down dead organisms. These nutrients released by Decomposers are taken in by plants through the roots. The nutrients pass from producers (plants) to primary consumer (herbivores) when they feed on plants and then to higher levels consumers when they feed and digest the lower levels consumers and the producers. When they (the living things) grow and die, the nutrient cycle begins again.
