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nordsb [41]
3 years ago
9

Atomic number equals the number of _______ or the number of ______. * giving brainly*

Physics
2 answers:
Sergeu [11.5K]3 years ago
4 0
The atomic number equals the number of nucleus or the number of protons
german3 years ago
3 0
Atomic number equals the number of protons or the number of electrons.
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Define the term potential energy of a body? <br> How is it measured
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Answer:

potential energy. noun. the energy of a body or system as a result of its position in an electric, magnetic, or gravitational field. It is measured in joules (SI units), electronvolts, ergs, etcSymbol: E p, V, U, φ Abbreviation: PE.

Explanation:

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2 years ago
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Projectile Motion: A pilot drops a package from a plane flying horizontally at a constant speed. Neglecting air resistance, when
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Explanation:

The package had the same velocity as the plane when it was dropped. Newton's 1st Law says that "an object in motion tends to stay in motion, at the same velocity, in a straight line unless acted on by an outside force".

There only outside force acting on the package was its weight -- that force is straight down. The horizontal velocity that the plane gave the package continued (as Newton said it would), so as it fell, horizontally it kept pace with the plane.

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3 years ago
2 characteristics of constant speed
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it has no acceleration

Explanation:

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3 years ago
A_ is a cut made through the wood
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i believe the answer is B only because i looked it up on g00gle so take what i say with a GRAIN of salt all puns intended

Explanation:

 

6 0
3 years ago
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In a research facility, a person lies on a horizontal platform which floats on a film of air. When the person's heart beats, it
anastassius [24]

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here, we will be using conservation of momentum to solve the problem. i.e the total momentum remains unchanged, unless an external force acts on the system. We'll in thus question, there is no external force acting in the system.

Remember, momentum = mass * velocity, then

mass of blood * velocity of blood = combined mass of subject and pallet * velocity of subject and pallet

Velocity of blood = 56.5cm = 0.565m

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Thus, the mass of blood that leaves the heart is 3.48g

7 0
3 years ago
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