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TiliK225 [7]
3 years ago
15

Which of the following statements about matter is true? Mass and matter are always the same. Matter is made up of atoms and has

mass. Mass can decrease while matter increases. Matter does not exist in the biosphere.
Physics
1 answer:
Zepler [3.9K]3 years ago
7 0
The correct answer is Matter is made up of atoms and has mass.
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PLEASEEE HELPPP!!!!
Zigmanuir [339]

Answer: The work is 1863 N*m

Explanation:

We can define work as:

W = F*d

Where F is the force that the mover needs to apply to the refrigerator, and d is the distance that the refrigerator is moved.

To move the refrigerator, the minimal force that the mover needs to do is exactly the friction force (In this case, the refrigerator will move with constant speed).

Then we will have:

F = 230 N

and the distance is 8.1 meters, then the work will be:

W = 230N*8.1 m = 1863 N*m

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What morbid structure traditionally has thirteen steps?
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A gallow

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3 years ago
Technician A says that the cooling system should be tested for leaks using a pressure-operated pressure pump. Technician B says
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Answer:

The correct option is;

Technician A only

Explanation:

Leaks in the cooling system parts such as the radiator cap can be tested with a pressure operated hand pump by attaching the pump cap to the pump with an adaptor and apply pressure enough for there to be a release of pressure at the cap.

The pressure added to the system should be maintained for up to two minutes. If the pressure drops quicker, then there is likely to be leaks in the system

The freezing and boiling point of the coolant is measured with an antifreeze tester which carries the appropriate apparatus to measure the coolants freezing and boiling points.

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