Answer:
27/125
(3/5)³
(0.6)³
0.216 gm/cm³ or g/cc
Explanation:
Here Density is actually the amount of matter present in unit volume.
0.216 g/cc
The electric potential difference is the electric potential energy per unit charge
Explanation:
First of all, we define the concept of electric potential. The electric potential is a measure of the gradient of the electric field at a certain point of the space. The electric potential at a distance from a positive charge of magnitude is given by
where k is the Coulomb's constant.
Now we can define the electric potential energy and the electric potential difference:
The electric potential energy is also defined as the work done on a charge q moved through a potential difference of . Consequently, the potential difference represents the work per unit charge done, i.e. the work done when moving a unitary charge through a potential difference .
Learn more about potential difference and current:
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An ideal ammeter has zero resistance to avoid altering the current it measures, while an ideal voltmeter has infinite resistance to prevent drawing current from the device it's measuring the voltage of.
The resistance of an ideal ammeter is zero ohms. This ensures that it doesn't interfere with the current it is measuring. An ammeter is connected in series with the circuit, and if the resistance were greater than zero, it would decrease the amount of current circulating in the circuit.
On the other hand, an ideal voltmeter has infinite resistance. This happens because a voltmeter is connected in parallel with a device to measure its voltage, and to avoid drawing current from the device, an ideal voltmeter should have infinite resistance.
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b. A stack worth $1
c. A stack worth $5
d. A stack worth $1,000
(Give your answer in millimeters and meters.)