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liq [111]
3 years ago
14

If a material, such as concrete, can withstand a large applied weight but gives away (ruptures) quickly when a crack forms, then

it is considered _____.
Physics
2 answers:
MrMuchimi3 years ago
6 0
The correct answer is brittle:)
mart [117]3 years ago
5 0
Brittle, weak, unstable.
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Answer the following questions.
Sever21 [200]

Answer:

1. B 2. A. 3. A. 4. B 5.B

Explanation:

1) The statement is false, because the  acceleration (by definition) is the  rate  of change of velocity, which is a vector.

As a vector, it can change the magnitude, the direction, or both. As the speed is only the magnitudde, there can be an acceleration at constant speed, as in an uniform circular movement, where the acceleration produces a change in direction, not in the speed.

2) If the body is in motion (assuming that it is only translational motion) the position (displacement from the origin) must be change with time, so the statement is true.

3) This is true, as the acceleration, as we said above, is the rate of change of  the velocity vector.

4) The statement is false, as an object moving at constant speed along a straight line is in movement, and is not accelerated at all.

5) The statement is false, as a body can momentarily come to an stop (before changing direction, for instance), and be accelerated at the same time.

The best example is an object thrown up in the air: once released, the only force acting  on it is gravity, which  produces an acceleration in opposite direction to the initial speed, until it causes the object to stop, change direction, and finally fall freely.

3 0
3 years ago
It is easier to to pull the bucket of water from well until it is inside the water but difficult out of water?why
Likurg_2 [28]
Gravity will affect both, the bucket and the water inside of it so the combined mass of the water and bucket will have higher weight
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3 years ago
At what temperature do you cook baked beans
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6 0
3 years ago
The solar panels used by Mark function because of the photoelectric effect. Light shines on the cells causing electrons to be ej
Phoenix [80]

  friend please verify the answer i'm not too much sure but according to me the visible is needed to caused the photoelectric effect.

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kogti [31]
The cross buck signs have the words railroad and crossing in black and white assembled in a large x configuration. If there is more than one set of tracks this sign will tell how many tracks are there on a separate sign below the cross buck. As approach look and listen for an approaching train. The cross buck sign means the same as a yield sign which means that if a train is approaching you must yield and let the train pass. A recently enacted state law will require that a yield sign be placed below the cross buck sign at crossing that do not have stop signs or red flashing light signals. This is being done to further emphasize that a cross buck sign means that you must yield to trains.

3 0
3 years ago
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