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2 years ago

Which of the following statements is false about the distances between planets earth and the sun

2 answers:

7 0

The distance from the sun to Neptune is about the same as the distance from Neptune to the next closest star, Proxima Centauri

Alexus [3.1K]2 years ago

3 0

Answer;

The distance from the sun to Neptune is about the same as the distance from Neptune to the next closest star, Proxima Centauri

Explanation;

When a planet like earth is closer to the sun the heat of the sunlight warms the surface of the planet hence,a planet like Neptune is far away from sun, the sunlight can't reach the planet and it's surface becomes cold so,the distance of the sun and planet is the main factor effecting the temperature.

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An object is 9.00 cm tall. The image is 5.76 cm tall, and 14 cm

zubka84 [21]

Answer:

i would say 9.00 or 5.76

Explanation:

8 0

2 years ago

How far from a -7.80 μC point charge must a 2.40 μC point charge be placed in order for the electric potential energy of the pai

Naddik [55]

Answer:

Distance between two point charges, r = 0.336 meters

Explanation:

Given that,

Charge 1, $q_1=-7.8\ \mu C=-7.8\times 10^{-6}\ C$

Charge 2, $q_2=2.4\ \mu C=2.4\times 10^{-6}\ C$

Electric potential energy, U = -0.5 J

The electric potential energy at a point r is given by :

$U=k\dfrac{q_1q_2}{r}$

$r=k\dfrac{q_1q_2}{U}$

$r=9\times 10^9\times \dfrac{-7.8\times 10^{-6}\times 2.4\times 10^{-6}}{-0.5}$

r = 0.336 meters

So, the distance between two point charges is 0.336 meters. Hence, this is the required solution.

8 0

3 years ago

As a substance is changing from a liquid to a gas, the distance

bonufazy [111]

As a substance is changing from a liquid to a gas, the distance between its molecules increases, and the temperature of the system remains the same.

Option A

<u>Explanation:</u>

The external energy required to change from one state to another is mostly considered as temperature. So on increase in temperature, the solid changes to liquid and the liquid changes to gases. But the temperature remains constant in the system after changing the phase.

This is because when the temperature is increased on a liquid system, the rise in temperature is utilized for breaking the bonds and thus the molecules will be distanced from each other. If we consider liquid - gas phase transition, the gas molecules are farther distanced compared to liquid molecules.

So the rise in temperature is utilized for breaking the bonds and also to provide the kinetic energy to the gas molecules as they are tend to move more freely compared to liquid. Thus, the distance between the molecules increases, and the temperature of the system remains the same on changing from liquid to gas.

5 0

3 years ago

Can someone help me due at 1:00 PM plus 100 points <br><br>questions B,C,D

vagabundo [1.1K]

<h3>Hope it helps...</h3>

6 0

2 years ago

Read 2 more answers

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ad-work [718]

Answer

D. move a small magnet back and forth within a section of the coiled wire.