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Mashutka [201]
3 years ago
6

The atomic number, or ________ number, is the described as the number of _________ in the nucleus of an chemical element.

Physics
2 answers:
Rzqust [24]3 years ago
6 0

Answer: A is the correct one

Morgarella [4.7K]3 years ago
4 0

Answer:

a is correct answer

Explanation:

proton protons

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3 years ago
A force of 880 newtons stretches a spring 4 meters. A mass of 55 kilograms is attached to the end of the spring and is initially
bija089 [108]

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7 0
3 years ago
What is the kinetic energy of a 0.15 kg baseball that is moving with a velocity of 50 m/s?
goblinko [34]
Using the equation:

ke \:  =  \frac{1}{2} m{v}^{2}
ke  =   \frac{1}{2} (0.15) {(50)}^{2}
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7 0
3 years ago
A cubic box has a 0.6 cubic decimetre side. Find the mass of air in the box in gram. (1 Liter of air has a mass of 1.3 g).
morpeh [17]

Answer:

The mass of air in the box is 0.78 grams.

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A litre equals a cubic decimetre. By definition of density (\rho), in grams per litre, we calculate the mass of air inside the cube (m), in grams:

m = \rho \cdot V (1)

Where V is the volume occupied by air within the cube, in litres.

If we know that V = 0.6\,L and \rho = 1.3\,\frac{g}{L}, then the mass of air is:

m = \left(1.3\,\frac{g}{L} \right)\cdot (0.6\,L)

m = 0.78\,g

The mass of air in the box is 0.78 grams.

4 0
2 years ago
What type of forces affects the speed and direction of motion of an object?
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