Answer:
a) battery-->electrical current-->copper wire rotor -->magnet--> mechanical energy
Explanation:
The Law of Conservation of Matter states that the mass of the reactants equals the mass of the products.
Thus, your answer is A
Separation by density filtration because lead slightly interacts with magnets also.
Answer:
Answer
Advantages of alcohol over Mercury
(a) Freezing point of alcohol is −117∘
C and hence can record very low temperature For example in Arctic and Antarctic regions temperature may fall below −80∘
C which cannot be measured by mercury thermometer because mercury freezes at−39 ∘ C
(b) The expansion of alcohol per degree rise in temperature is much more around six times more then that of mercury and hence is more sensitive
(c) it can be coloured brightly by adding some dye in it and hence is easily detectable
The Moon's diameter is 1/110 the distance between Earth and the Moon. ... The sun's diameter is 1/110 the distance between Earth and the Sun.