Acylindrical copper rod has resistance r its reformed to half its original length what is its new resistance

1/2 r

Explanation:

length is directly proportionate to resistance

with shorter length, the resistance is lower

b) returns freshwater to the earth.

c) returns freshwater to the earth.c) occurs after condensation.

d) returns freshwater to the earth.c) occurs after condensation.d) roughly equal to the amount of evaporation.

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when heated, the valance electrons increased their speed and transferred the heat from electron to electron.   i just took the test.