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How do we know the gravitational effects hypothetically attributed to dark matter are not in fact caused by black holes?
Gmenti
That's easy! We don't.
So far, no sign of the proposed "dark matter" has been discovered, nor have the properties of "dark matter" been firmly defined. The concept is still evolving, and will do doubt be extensively modified in the coming years.
Wiki User
∙ 14y ago
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Tides are caused by the gravitational pull of?
Tides are caused by the gravitational pull of the moon.
What are semi-tides?
Tides are the rise and fall of sea levels caused by the combined effects of the gravitational forces exerted by the Moon and the Sun and moon
What causes the Moon's gravitational fields?
Gravitational fields are caused by masses.
When do high tides come about?
High tides occur when the water is at its highest. Tides are caused by the combined effects of the rotation of the earth and the gravitational forces of the sun and the moon.
What are ocean bulges caused by?
It is caused by the moon's gravitational force.
What part of speech is gravitational?
The word gravitational is an adjective. It means caused by gravity.
What are the Astronomical Effects on the Oceans?
The only astronomical effects on the Oceans would be Tides, which put simply would read like this.'Tides are the rise and fall of sea levels caused by the combined effects of the rotation of the Earth and the gravitational forces exerted by the Moon and the Sun.'
How many Deaths caused by alcohol?
Alcohol-related deaths per yearDrinking and driving causes over 25000 deaths a year. Overall 100,000 deaths occur each year due to the effects of alcohol. 5% of all deaths from diseases of the circulatory system are attributed to alcohol.15% of all deaths from diseases of the respiratory system are attributed to alcohol.30% of all deaths from accidents caused by fire and flames are attributed to alcohol.30% of all accidental drownings are attributed to alcohol.30% of all suicides are attributed to alcohol.40% of all deaths due to accidental falls are attributed to alcohol.45% of all deaths in automobile accidents are attributed to alcohol.60% of all homicides are attributed to alcohol.Source: NIDA Report, the Scientific American and Addiction Research Foundation of Ontario.
What are earths tides caused by?
The tides are caused by the gravitational pull of Earth's moon.
How are gravitational waves caused and how do they relate to what you have learned about the behavior of waves?
the waves are caused by the gravitational pull of the moon. they relate to the moon because without the moons gravitational pull the ocean wouls come to a complete standstill
Bulge of the ocean is pulled toward the moon by what?
The tidal effects are caused by the gravitational forces of the moon and sun. The different positions of the sun and moon are the causes of high and low tides on Earth.
How can erosion be caused by gravity?
by the gravitational pull of earth.
