3 years ago

Which statement describes a property of a proton?

1 answer:

7 0

Answer:

They have no charge and are present in the nucleus of an atom. They have a negative charge and travel around the nucleus of an atom. They have a positive charge and travel around the nucleus of an atom

Explanation:

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Answer: The variable that you manipulate is called the independent variable. The variable that you measure is called the dependent variable.

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An object moving at a constant velocity will always have a

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Answer:

It will always have a zero acceleration

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At an instant when a soccer ball is in contact with the foot of the player kicking it, the horizontal or x component of the ball

dedylja [7]

Answer:

Magnitude of net force will be 432.758 N

Explanation:

We have given x component of acceleration $a_x=760m/sec^2$

And vertical component of acceleration $a_y=770m/sec^2$

Mass of the ball m = 0.40 kg

So net acceleration $a=\sqrt{a_x^2+a_y^2}=\sqrt{760^2+770^2}=1081.896m/sec^2$

Now according to second law of motion

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So F = 0.40×1081.896 = 432.758 N

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3 years ago

Which of the following is not a part of dalton s atomic theory?

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<span>c. atoms are always in motion..............</span>

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Object 1 has a momentum of 10 kg m/s and Object 2 has a momentum of 25 kg m/s. Will it be easier to change the direction of move

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Answer:

I think its object 1

Explanation:

Because the object that has more weight has a greater momentum and the lightest object that has a less momentum will be easier to change because its lighter.

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3 years ago