One of the useful forns of the formula for electrical power is: Power = (voltage squared) / (resistance). Knowing that power is proportional to (voltage squared), we can see that if the voltage is reduced to 1/2, the power is reduced to 1/4 of its original value. The 220volt/60watt appliance, when operated on 110 volts, dissipates 60/4 = 15 watts.
No the density does not change. Density is a ratio D=m/v no matter how much of a substance you have its mass will be proportional.
When doing density labs sometimes you might get different answers due to errors that are unavoidable.
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There are seven basic units in the SI system: the meter (m), the kilogram (kg), the second (s), the kelvin (K), the ampere (A), the mole (mol), and the candela (cd).
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Answer:
B
Explanation:
It becomes lighter so it rises
Answer:
<em>Pyramid system</em>
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Explanation:
A <em>pyramid system </em>resistance training is a collection of sets of the same exercise, that start with light weights and higher repetitions, building up to heavier weights and fewer repetitions.
A full pyramid training is an extension of the above mentioned statement, reducing the weight after you have reached the peak until you complete the pyramid.
