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cluponka [151]
3 years ago
5

As a piece of paper burns, its physical properties change. So why is paper's ability to bum

Physics
1 answer:
sleet_krkn [62]3 years ago
4 0
Because it changes what the substance is and creates a new substance.
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(WILL MARK BRAINLIEST and 27pts) What is the formula used to calculate the distance to an object in parsecs
Eduardwww [97]

Answer:

a. d=1/p

Explanation:

The simple formula for calculating the distance to an object in parsecs is to divide 1 by the number of parsecs to find the distance in light years. Hope this helps!

7 0
3 years ago
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Now let’s apply Coulomb’s law and the superposition principle to calculate the force on a point charge due to the presence of ot
Mnenie [13.5K]

Answer:

F = - 1.68 10⁻⁴ N

, it is directed to the left of the x-axis

Explanation:

Coulomb's law is

     F = k q₁ q₂ / r²

Where K is the Coulomb constant that value 8.99 10⁹ N m²/ C², q are the electric charges and r is the distance between them. Let's apply to our problem for each pair of charges

Let's reduce the magnitudes to the SI system

    q₁ = 3.0 nc (1C / 10 9 nC) = 3.0 10⁻⁹ C

    x₁ = 2.0 cm (1m / 100cm) = 2.0 10⁻² m

    q₂ = -6.0 nC = -6.0 10⁻⁹ C

    x₂ = 4.0 cm = 4.0 10⁻² m

    q₃ = 5.0 nC = 5.0 10⁻⁹ C

    x3 = 0 m

Charges q1 and q3

    r = x₁ -x₃

    r = 2.0 10⁻² -0

    r = 2.0 10⁻² m

    F₁₃ = 8.99 10⁹ 3.0 10⁻⁹ 5.0 10⁻⁹ / (2.0 10⁻²)²

    F₁₃ = 33.7 10⁻⁵ N

As the charges are of the same sign, the force is repulsive, therefore it is directed to the left of the x-axis

Charges q2 and q3

    r = r₂ –r₃

    r = 4.0 10⁻² - 0 = 4.0 10⁻² m

    F₂₃ = 8.99 10⁹ 6.0 10⁻⁹ 5.0 10⁻⁹ / (4.0 10⁻²)²

    F₂₃ = 16.86 10⁻⁵ N

As the charges are of different sign, the force is attractive, therefore it is directed to the right of the x-axis

The force is a vector magnitude, so each component must be added independently, in this case all the forces are on the x-axis, let's take the right direction as positive

    F = F₂₃ - F₁₃

    F = 16.86 10⁻⁵ - 33.7 10⁻⁵

    F = - 16.84 10⁻⁵ N

    F = - 1.68 10⁻⁴ N

The negative sign means that it is directed to the left of the x-axis

5 0
3 years ago
Traveling into space from Earth, which of these would he be able to reach first?
mr Goodwill [35]

You didn't Provide choices to choose from. Please fix question and I'd love to be able to help.

5 0
3 years ago
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Two bumper cars collide into each other and each car jolts backwards. which one of Newton's laws is this?
LekaFEV [45]
I think it would be Newton’s second law
7 0
2 years ago
Areas near baton rouge louisiana recently received 36.2 cm of rain in a single day. how many meters of rain was this?
sergey [27]
100 cm is 1 meter. So your answer would be 0.362 meters.
5 0
3 years ago
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