Answer:
NO
Explanation:
No, a machine cannot be 100% efficient. This is due to the movement of the moving parts siding against each other and causing friction. This friction is the one that creates heat and causes wear and tear between moving ports f the machine hence making the machine to decrease in efficiency with time
You may confuse two minerals by their colors so using streak is another way for showing their "true colors "
Anthropology. It focuses on human behavior.
The spinning turbine converts mechanical energy into electrical energy that is converted into light energy used to light up the house.
<h3>What is law conservation of energy?</h3>
The law of conservation of energy states that energy can neither be created nor destroyed but can be transformed from one form to another.
The spinning turbine works on the principle of mechanical energy.
Thus, the spinning turbine converts mechanical energy into electrical energy that is converted into light energy used to light up the house.
Learn more about mechanical energy here: brainly.com/question/24443465
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Answer:
(A) ratio of electric force to weight will be 
(b) Electric field will be 
Explanation:
We have given mass of bee = 100 mg = 
Charge on bee 
Electric field E = 100 N/C
Weight of the bee 
Electric force on the bee 
So the ratio of electric force on the bee and weight is 
(B) To hold the bee in air electric force must be equal to weight of bee
So 
