3 years ago

If you rub a balloon on a sweater, which will have more electrons?

1 answer:

8 0

When you rub a balloon on a sweater, for example, some electrons come off and end up on the balloon. The fibers have lost electrons giving them a positive charge. The rubber gained electrons giving it a negative charge.

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A car accelerates uniformly from rest tona speed of 30.0 mi/h in 12.0s. Find the distance the car travels during this time? Find

meriva

Answer:

2.5 mi/s^2

Explanation:

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2 years ago

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Answer:

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3 years ago

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a stone is vertically thrown upward with the velocity of 72km/hr find the maximum height reached the height

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Answer:

40m

Explanation:

v^2=gh

h=v^2/g

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3 years ago

That 1.5 kg brick falls to the ground. What is the kinetic energy when the brick is moving at 26 m/s? Formula: Variables: Work w

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Answer:

Explanation:

The kinetic energy of an object can be found by using the formula

$k = \frac{1}{2} m {v}^{2} \\$

m is the mass

v is the velocity

From the question we have

$k = \frac{1}{2} \times 1.5 \times {26}^{2} \\ = \frac{1}{2} \times 1.5 \times 676 \\ = 1.5 \times 338 \\ = 507$

We have the final answer as

Hope this helps you

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3 years ago

Which of the following describes an element?

bixtya [17]

Answer:

A substance made of two or more types of atoms

Explanation:

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2 years ago