Marbles would have the greater density. Marbles would have the greater density because the molecules inside are more tightly packed. Even though sand has the greater mass it does not have the greater density. The sand doesn't have the greater density because it could be crushed in an instant, showing that if molecules are packed together tightly they will be tougher to break. The dice, I believe, still have a greater density than the sand.
The product of (wavelength) times (frequency) is always
the same number ... it's the speed of the wave.
So if the speed of the wave doesn't change, the product
of (wavelength) times (frequency) doesn't change.
That means that if the wavelength OR the frequency changes,
the OTHER one has to change by the same factor in the opposite
direction, in order to keep their product unchanged.
If the frequency in INcreased by a factor of 4,
the wavelength must DEcrease by a factor of 4.
If the frequency becomes 4 times as great as it was,
then the wavelength becomes 1/4 as long as it was.
(Please don't say "4 times shorter". That's meaningless and I hate it.)
Nucleus, made up of protons and neutrons and can be found in the center of the atom
Your Question:
<span>A
star is born when gas and dust from a nebula become so dense and hot
that nuclear fusion starts. Which of the following forces is responsible
for the formation of a star?
A.
friction
B.
gravitation
C.
magnetism
D.
electromagnetic energy</span>
Our Teams Answer: B. Gravitation
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-ExperimentsDIY
Answer: Location the data and observations collected in your lab guide
Explanation: