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3 years ago

Which best describes the meaning of the stayement “if A , then B”

Physics

1 answer:

Darya [45]3 years ago

7 0

Answer:

A statement of the form “If A, then B” asserts that if A is true, then B must be true also. If the statement “If A, then B” is true, you can regard it as a promise that whenever the A is true, then B is true also.

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What is the name of the process where rocks are being broken down into small grains of sediment or soil?

elena-s [515]

Answer:

a. weathering.

Explanation:

weathering is the process of breaking down rocks and minerals into smaller pieces by water, wind, and ice.

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3 years ago

The element chlorine is found in nature as a molecule that can be represented as - A. Cl.

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A
Cl is the chemical symbol for chlorine numbers after it are isotopes

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3 years ago

A 0.500 kg bullet is fired from a gun at 25.0 m/s, how much kinetic energy does it have?

slamgirl [31]

Considering the definition of kinetic energy, the bullet has a kinetic energy of 156.25 J.

<h3>Kinetic energy</h3>

Kinetic energy is a form of energy. It is defined as the energy associated with bodies that are in motion and this energy depends on the mass and speed of the body.

Kinetic energy is defined as the amount of work necessary to accelerate a body of a given mass and in a rest position, until it reaches a given speed. Once this point is reached, the amount of accumulated kinetic energy will remain the same unless there is a change in speed or the body returns to its rest state by applying a force to it.

The kinetic energy is represented by the following expression:

Ec= ½ mv²

Where:

Ec is the kinetic energy, which is measured in Joules (J).
m is the mass measured in kilograms (kg).
v is the speed measured in meters over seconds (m/s).

<h3>Kinetic energy of a bullet</h3>

In this case, you know:

m= 0.500 kg
v= 25 m/s

Replacing in the definition of kinetic energy:

Ec= ½ ×0.500 kg× (25 m/s)²

Solving:

Ec= 156.25 J

Finally, the bullet has a kinetic energy of 156.25 J.

Learn more about kinetic energy:

brainly.com/question/25959744

brainly.com/question/14028892

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2 years ago

A cold glass of iced tea warms quickly on a hot day through the process of A. conversion. B. insulation. C. conduction. D. expan

r-ruslan [8.4K]

C) conduction. let me know if I'm wrong

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3 years ago

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Is telekinesis real??? I really wanna start learning it!

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Answer:

Highly doubt something that requires great focus and mental strength exists

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