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VLD [36.1K]
2 years ago
8

Q C During a solar eclipse, the Moon, the Earth, and the Sun all lie on the same line, with the Moon between the Earth and the S

un. (c) What force is exerted by the Sun on the Earth?
Physics
1 answer:
lianna [129]2 years ago
3 0

The force exerted by the Sun on the Earth is =3.557 \times 10^{22}

<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

$F=\frac{G \cdot m_1 \cdot m_2}{d^2}$

<h3>What is universal gravitation?</h3>

The universal gravitation constant

$G=6 \cdot 67 \times 10^{-11} \cdot \mathrm{m}^3 \cdot 8^{-2} \cdot \mathrm{kg}^{-1}$

Here we know that

The mass of the sun is $m_s=2.0 \times 10^{30} \mathrm{~kg}$ is the

The mass of the moon is $m_M=7.3 \times 10^{22} \mathrm{~kg}$

The mass of the Earth is $m_E=6.0 \times 10^{24} \mathrm{kg}$

The distance between the Sun and the Earth is

$$d_{S E}=1.5 \times 10^{11} \mathrm{~m}$$

The distance between the earth and the moon is

$$d_{E M}=3.85 \times 10^8 \mathrm{~m} \text {. }$$

Here the calculation is:

F_{S E}=\frac{G \cdot m_S \cdot m_E}{\left(d_{S E}\right)^2}

$=\frac{6.67 \times 10^{-11} \times 2.0 \times 10^{30} \times 6.0 \times 10^{24}}{\left(1.5 \times 10^{11}\right)^2}$

$=\frac{80.04 \times 10^{43}}{1.5^2 \times 10^{22}}=\frac{80.04 \times 10^{21}}{2.25}$

=3.557 \times 10^{22}

To learn more about quadratic equations, refer: brainly.com/question/21570007

#SPJ4

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p=600/50

p=12

so 12Nm^-1

4 0
3 years ago
A skateboarder is skating back and forth on the halfpipe as seen below. As he skates his energy transforms from potential energy
egoroff_w [7]

Answer:

Friction and air resistance cause some of his kinetic energy to be “lost”. This makes him slow down.

Explanation:

The law of conservation of energy states that in absence of frictional forces, the mechanical energy of an object (given by the sum of its kinetic and potential energy) is conserved. In such a situation, the skateboarder would never stop his motion, because potential energy is continuously converted into kinetic energy and vice-versa, but the total energy remains the same so he would never stop.

In a real world, however, this is not true. In fact, in a real world some frictional force are present, in particular:

- friction: this force is due to the contact between the skateboard and the surface of the halfpipe, and its direction is always opposite to the motion of the skateboarder

- Air resistance: this force is due to the resistance opposed by the molecules of air that the skateboarder meets during his motion, and its direction is also opposite to the motion of the skateboarder

This two forces are said to be non-conservative forces, which means that they cause some of the mechanical energy of the skateboarder to be "lost", in the sense that it is dissipated as heat and it is no longer available for the skateboarder.

Therefore, the correct option is

Friction and air resistance cause some of his kinetic energy to be “lost”. This makes him slow down.

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An ant clings to the outside edge of the tire of an exercise bicycle. When you start pedaling, the ant's speed increases from ze
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Answer:

1- 3.64 m/s

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3 0
3 years ago
An object is traveling with a constant velocity of 5 m/s. How far will it have gone after 7 s?
kozerog [31]
<h3>Answer:</h3>

35 meters

<h3>Explanation:</h3>

<u>Data given;</u>

  • Velocity of an object = 5 m/s
  • Time taken = 7 s

We are required to calculate how far the object traveled.

  • We need to know that;

Velocity = Displacement ÷ time

  • Therefore;

Displacement = Velocity × time

                       = 5 m/s × 7 s

                      = 35 m

Therefore; the object traveled 35 meters

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4 years ago
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