What causes the earths crust to move ?
Answers
The rocks that make up the crust are light, compared with the metal-rich material beneath. The crust floats on top like an iceberg. Slow-moving currents underneath propel the continents around the surface
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What is the speed of a wave with a wavelength of 5 m and a frequency of 6.0 Hz
Which of the following statements is true about the nature of light?A. Light behaves entirely as a particleB. Light has properties of both particles and wavesC. Light behaves entirely as a waveD. Light travels as a wave but does not carry energy ...?
A sport car moving at constant speed travels 110m in 5.0 s. if it then brakes and comes to a stop in 4.0 s, what is the magnitude of its acceleration in m/s2, and in g’s (g=9.80 m/s2)? 2
Answers
The grass did not exert an action force.
The grass shortens the time of the collision.
The grass extends the time of the collision.
Answers
Answer : Because the grass extends the time of the collision.
Explanation :
Denise is riding her bike and falls to the ground. During the collision, she hits both grass and cement.
He had fewer injuries to the area of her body that hit the grass because the grass extends the time of the collision and hence it imparts less impulse.
i.e.
Where
F is the force
t is the time of collision
Hence, the correct option is (d) " The grass extends the time of the collision ".
shrink in size
move further from Earth
spin faster
Answers
Answer: Move further from earth
Explanation:
b. polar
c. arctic
d. tropical
Answers
polar and arctic are the same thing, so they're eliminated.
you're left with beach weather or normal weather. Europe is not a big beach, so I'd go with normal, temperate.
Answers
Explanation:
1. Location.
Hurricanes are defined as severe tropical storms that form over warm ocean waters starting as storms in the Caribbean(North American continent) or off the west coast of Africa. As the storms drift slowly westward, they gather heat and energy through contact with warm ocean waters. Evaporation from the seawater increases their power.
Warm, moist air moves toward the center of the storm and spirals upward. Hurricanes rotate in a counter-clockwise direction around an “eye.”
2.
It is low lying. Majority of their lands are just a few feet above sea level.
3. Most of the infrastructures are built on rocks that are permeable to water. Hence, water bubble or seep out in unexpected places. Building of sea walls and other barriers to prevent rising seas, storms etc.
Its density decreases.
Its mass increases.
Its mass decreases.
Its volume increases.
Its volume decreases.
Answers
There are two answers to this:
- Its density decreases
- Its volume increases
You notice that ice floats on water, this means that its density is less. The mass remains the same because you did not add or remove anything. But what causes the density to decrease then? For density to change, there needs to be a change in either the volume or the mass of the object. Density is calculate by mass/volume. Since the mass did not change, the volume must have. So in this case, the volume increases. Hence, this is what causes it to be less dense.
Answer
B and E
Explanation:
water molecules are connected with each other through hydrogen bonding