Which are potential sources of error in the experiment?variable amounts of metal and magnetic properties of a material
holding the compass at an angle
the color of the bar magnet
unseen magnetic fields (such as from an electrical appliance)
the brand of light bulb used in the circuit
using a dead battery in the circuit

Answers

Answer 1

Answer:

Answer: variable amounts of metal and magnetic properties of a material, holding the compass at an angle, unseen magnetic fields (such as from an electrical appliance) and, using a dead battery in the circuit

Explanation: Just did the assignment on ED.

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A material that is not easily scratched is _____.
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When two forces act in opposite directions, the object will accelerate in the same direction as the BLANK force

Answers

That's the direction of the greater force.

Pull I think. Hope you his helps! :)

What are the starting ingredients and products of photosynthesis and cellular respiration

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Photosynthesis makes the glucose that is used in cellular respiration to make ATP. The glucose is then turned back into carbon dioxide, which is used in photosynthesis. While water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water.

How are particles in motion and temperature related?
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Please try to answer them as best as you can. There are five questions, and I hope you will be able to answer them all. I really appreciate your help. Thank you!!!

Answers

1) How are particles in motion and temperature related?

Temperature is the measure of heat. The kinetic energy of particles in motion is determined by the temperature. The higher the temperature, the higher the kinetic energy of the particles (basically, the hotter it is the faster the particles move).

2) How does a thermometer work?

A thermometer measures the average kinetic energy of the particles around the thermometer. As seen in 1), the kinetic energy defines the temperature, so measuring the energy of the particles can show you the temperature of the object.

3) What are temperature scales, list them and give examples.

Temperature scales are pretty much systems with which we compare different temperatures. The three widely used temperature scales today are Fahrenheit, Celsius, and Kelvin. All three are used in different countries and mainly for different purposes. Fahrenheit is used only in the United States and a few other countries around the world, while Celsius is excepted by nearly the entire rest of the world. Kelvin is used primarily in the scientific setting.

4) Define volume.

Volume is pretty much the amount of three-dimensional space an object or substance takes up. For example, a liter is a unit of measurement of volume. A two-liter bottle of soda means it contains the amount of soda that fills up 2-liters worth of three-dimensional space.

I hope this helped.

Select the correct answer.Rita is about to buy a house. She looks at houses in a good neighborhood that’s well known for its excellent community policing.. What need is she trying to fulfill according to Maslow’s hierarchy of needs?
A.
self-actualization
B.
esteem
C.
safety
D.
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Answers

the answer would be c because it is talking about she wants to be in a good neighborhood

I would say c, if she is looking in a good neighborhood with good policing, then she wants to be safe.

What is the function of the phytoplankton in ocean ecosystems? A.
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B.
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C.
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D.
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Answers

Phytoplankton are plant organisms that live in the upper, sun filled layers of the ocean. The function of the phytoplankton in ocean ecosystems is A. Producer

3. Three metal spoons are on a table. They are each at room temperature. If the three spoonstouch,
heat will flow among all three spoons.
heat will flow between two spoons.
no heat will flow among the spoons.
o heat will flow from the spoons to the air.

Answers

If the spoons touch, no heat will flow among the spoons. This is because they are already at thermal equilibrium with each other. This is hinted by the statement "they are at room temperature" which means they all have the same temperature. Heat only flows when there is a difference in temperature.

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