Answer:
The sound intensity that the other student measure, I₂ is expected to be;
A) 6.2 × 10⁻⁸ W/m²
Explanation:
The measure of sound intensity is given by the following formula;
Where;
I = The intensity
R = The radius
P = The power of the sound
Whereby we have;
The distance of the two people talking, R₁ = 3.0 m
The measure of the sound intensity, I₁ = 1.1 × 10⁻⁷ W/m² (from an online source)
The distance of the other student from the two people talking, R₂ = 4.0 m
Therefore, the estimate of the sound intensity, I₂, is given as follows;
I₂ = 6.1875 × 10⁻⁸ W/m²
∴ The sound intensity that the other student measure, I₂ ≈ 6.2 × 10⁻⁸ W/m²
The force exerted by the Sun on the Earth is
<h3>What is the Netwon law of the gravity state?</h3>
Newton's law of gravity states that the force executed by a body on another body is calculated
<h3>What is universal gravitation?</h3>
The universal gravitation constant
Here we know that
The mass of the sun is is the
The mass of the moon is
The mass of the Earth is
The distance between the Sun and the Earth is
The distance between the earth and the moon is
Here the calculation is:
To learn more about quadratic equations, refer: brainly.com/question/21570007
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The answer will be
(1) correct
(2) correct
(3) the force of the soccer ball on the net
(4) Will not change
Hope this help