Pole
Explanation:
A magnetic pole is the point on a magnet where a magnet effect is strongest. Around a magnet, there are magnetic fields.
- The magnetic fields are force fields that leaves the north poles and enters through the south.
- The pole is where magnetic effects are the strongest.
- It is around the pole that the strongest magnetic effect on a magnet or magnetic material is felt.
- The strength of magnetic fields are strongest at the poles.
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Answer:
universal mass unit
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The universal mass unit, abbreviated u (sometimes amu for atomic mass unit), is defined as one-twelfth of the mass of the 12C atom which has been defined to be exactly 12 u. The absolute mass of a 12C atom is obtained by dividing the value 12 by the Avogadro number (NA = 6.022 137 × 1023).
Answer:
c
Explanation:
Ice is about 9% less dense. When ice forms, it takes up about 9% more space than it did as a liquid. Thus, a 1 liter container of ice weighs less than a 1 liter container of liquid water, and the lighter material floats to the top.
Answer:
Mass of gold bar is 15.8 kg
Explanation:
The gold metal bar displaces volume of water equal to volume of metal bar.
So, volume of gold metal bar = 0.82 L
We know that density is the ratio of mass to volume.
So mass of gold bar = (density of gold)
(volume of gold bar) = (
)g =15826 g
Now, 1 g = 0.001 kg
So mass of gold bar = (
) kg = 15.8 kg
