Which travels faster? An echo that forms in water or one that forms in the air?
Answer:
air
Explanation:
air has much less resistance than water, and echos are just propagating mediums
Shani poses as the Statue of Liberty for an art class. She holds a torch above her head with her right hand and a book against her side with her left hand. She holds the pose for ten minutes. At the end of the session, she mentions to her friend that it was a lot of work to pose and that her arms are really tired.
Which describes the work Shani did while she posed?(assume the starting work position is when her hand is already raised )
She did more work with her right hand than with her left because the right was held up higher.
She did no work while she posed because she did not move the torch or the book.
She did work while she posed because she was tired at the end of the session.
She did no work while she posed because she did not exert a force on anythi
Answer:
She did no work while she posed because she did not move the torch or the book.
Explanation:
NEED THIS ANSWER SOONER THAN ASAP!!! HELP PLZ!! Explain how the concepts of energy transformation and conservation of energy allow you to track how energy moves through a system.
The law of conservation of energy states that energy can neither be created nor be destroyed, but it can be transformed from one form to another.
So I considered an example of it as follows: water is stored at height with potential energy, the water flows, and its potential energy is converted into kinetic energy. It flows to rotate a turbine with mechanical energy. Then the kinetic energy is converted into electrical energy. In our house, the electrical energy is converted into luminous energy, heat energy, and so on.
But what happens after that?
Explanation:
In summary, the concepts of energy transformation and conservation provide a powerful framework to understand how energy moves through a system, how it changes forms, and how to ensure that the total energy remains constant throughout the process.
Energy transformation refers to the process of converting energy from one form to another. In any system, energy can exist in various forms, such as kinetic energy (energy of motion), potential energy (energy due to position or configuration), thermal energy (heat), chemical energy (stored in chemical bonds), electrical energy, etc. As energy moves through a system, it can undergo transformations, changing from one form to another.
Learn more about energy conversion here.
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Which of the following images show high air pressure?
A a cloudy sky
B a clear sky
C a clear sky
D a cloudy sky
A) A and B
B) A and D
C) B and C
D) C and D
Answer:C a clear sky
Explanation: there are no clouds to let out more air pressure. So there could be more bubbles of air pressure in the sky or “patches”
What is a feature shared by all animal cells?
Select one:
Animal cells can make sugars using the Sun's energy.
Animal cells have tough cell walls.
Animals cells are eukaryotic.
Animal cells are prokaryotic
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The diagram below BEST represents which part of the cell theory?
Select one:
cells are the basic unit of all living things
all living things are made up of cells
Cells come from other living cells
living cells are neither created or destroyed
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Which of the following statements about cells is true?
Select one:
Cells are the basic unit of all living things.
Cells do not have a function in living creatures.
Cells are all the same on the inside.
Cells are all about the same size and shape.
Answer:
1. Animal cells are eukaryotic
2. All live things are made up of cells (I think)
3. Cells are the basic unit of all living things
Explanation:
Number 2 is probably wrong because I can't see the diagram but, all living things ARE actually made up of cells