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GrogVix [38]
4 years ago
11

1. Explain how the oceans were formed.

Biology
1 answer:
RSB [31]4 years ago
4 0
1. According to this theory, the ocean formed from the escape of water vapor and other gases from the molten rocks of the Earth to the atmosphere surrounding the cooling planet. After the Earth's surface had cooled to a temperature below the boiling point of water, rain began to fall—and continued to fall for centuries

2. Plates at our planet's surface move because of the intense heat in the Earth's core that causes molten rock in the mantle layer to move. It moves in a pattern called a convection cell that forms when warm material rises, cools, and eventually sink down. As the cooled material sinks down, it is warmed and rises again.

3. Seafloor spreading occurs at divergent plate boundaries. As tectonic plates slowly move away from each other, heat from the mantle's convection currents makes the crust more plastic and less dense. The less-dense material rises, often forming a mountain or elevated area of the seafloor.

4. Seismic waves are usually generated by movements of the Earth's tectonic plates but may also be caused by explosions, volcanoes and landslides. Seismologists use seismographs to record the amount of time it takes seismic waves to travel through different layers of the Earth

5. Because a hypothesis may not match the results
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How high is the ceiling in a school gym if a volleyball thrown upward from the floor at 15 m/s barely touches the ceiling before
Harman [31]

The height of the ceiling in the school gym from the floor is 11.48m.

HOW TO CALCULATE HEIGHT OF A PROJECTILE:

  • Using one of the equations of motion as follows:

v² = u² + 2as

Where;

v = final velocity (m/s)

u = initial velocity (m/s)

a = gravitational acceleration (m/s²)

s = distance traveled (m)

According to this question,

  • The final velocity (v) of the volleyball is 15m/s
  • The initial velocity is 0m/s
  • The acceleration due to gravity is 9.8m/s

Using the formula, v² = u² + 2as, the height of the ceiling (s) can be calculated as follows:

15² = 0² + 2 (9.8) (s)

225 = 0 + 19.6s

225 = 19.6s

s = 225/19.6

s = 11.48m

Therefore, the height of the ceiling in the school gym from the floor is 11.48m

Learn more: brainly.com/question/21065813

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3 years ago
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Diffusion is a type of passive transport. Why?
FromTheMoon [43]

Answer:

Diffusion expends no energy. Rather the different concentrations of materials in different areas are a form of potential energy, and diffusion is the dissipation of that potential energy as materials move down their concentration gradients, from high to low.

Explanation:

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What is Nucleic acids monomer and structure
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Answer:

nucleotides.

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Some plants have developed a thick waxy coating that helps prevent the loss of water. In order for plants to develop this thick
torisob [31]
The plants must have variation in the amount of waxy coating.
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Which component is released from the active site of an enzyme during a chemical reaction?
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Products are released from the active site of an enzyme during a chemical reaction. Active sites directly bind to the substrates and carry out the reaction. It is this site, where product if formed, and after completion of the reaction, are released. It possesses catalytic group for making and breaking the bonds, for carrying out the reaction.
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