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Alecsey [184]
2 years ago
12

During a solar eclipse our tiny moon totally blocks the sun because of .....

Physics
1 answer:
Vaselesa [24]2 years ago
4 0

During a total solar eclipse, the moon passes between Earth and the sun. This completely blocks out the sun’s light. However, the moon is about 400 times smaller than the sun. How can it block all of that light?

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You hold your physics textbook in your hand. (Assume that no other objects are in contact with the book.)
Jet001 [13]

Answer:

1) the correct answer is b and d

2) For force b its direction is vertical up

   for the force d its direction is vertical down

3) the correct answers are: a, c and d

4) Force a is vertical down , force c is vertical up and force d is vertical down

5) the correct answer which is b

Explanation:

In this exercise it is asked to identify the forces, fundamentally on the free there are the forces of gravity and the support force of the hand, with these facts we answer the questions

1) the correct answer is b and d

the hand acts on the book with a contact force and the Earth acts on the book with the force of gravity.

2) For force b its direction is vertical up

   for the force d its direction is vertical down

3) The forces on the hand are the weight of the book. The force of gravity due to the mass of the hand. As the hand is in balance, there must be a force applied by the arm to keep the hand in position; assuming the hand is in the air, if the hand is resting on the floor the force of the floor on the hand can perform this function

therefore the correct answers are: a, c and d

4) Force a is vertical down

    force c is vertical up

   force d is vertical down

5) The action and reaction forces are forces of equal magnitude, each applied to one of the bodies, we have

* the force of the hand on the free and its reaction the force of the book on the hand

* The force of the Earth on the book and the hand, giving the weight of each one and the relationship is the force of the book and the hand on the Earth

the correct answer which is b

8 0
2 years ago
Your camera's zoom lens has an adjustable focal length ranging from 81.0 to 185 mm. What is its range of powers (in D)?
Inessa [10]

Answer:

Maximum

Explanation:

for sure

7 0
3 years ago
Do blood cells have a rigid cell wall
Pani-rosa [81]
Human cells don't have<span> a </span>cell wall<span> in the same way that plants </span>do. We<span> </span>have cell<span> membranes which are more malleable structures than the </span>rigid cell walls<span> of plants.</span>
5 0
3 years ago
Pick 3 safety rules in science that you think are important and explain what would happen if the rules were no followed. Used yo
IgorLugansk [536]

Answer:

Answer down below!

Explanation:

  1. Always wear goggles! This is to prevent chemicals or any other substance to get into your eyes. If this wasn't followed, more people could get hurt.
  2. Clean up afterwards! Its always better to clean up so someone else couldn't get hurt! If people don't follow this, it could be a mess and someone could get seriously injured.
  3. When smelling something, waft it to your face, and not get real close. This is to prevent getting chemicals into your body that could be poisonous. If people didn't folloe this, someone could be seriously sick.
7 0
2 years ago
Calculate the electrical force that acts on one plate of a parallel plate capacitor. The potential difference between the plates
eduard

Answer:

The work done in bringing the plates together is 5.9 x 10⁻¹⁰ J.

Explanation:

Given;

potential difference between the plates, V = 10 V

length of each square side of the plates, L = 20 cm = 0.2 m

area of the plates, A = 0.2 x 0.2 = 0.04 m²

separation of the plates, d = 3 cm = 0.03 m

The work done in bringing the plates together is calculated as;

W = ¹/₂qV

W = \frac{1}{2} (\frac{\epsilon_0 A }{d}V) \times V\\\\W = \frac{\epsilon_0 A V^2}{2d}\\\\W = \frac{8.85 \times 10^{-12} \ \times \ 0.04\ \times \ 10^2}{2(0.03)} \\\\W = 5.9 \times 10^{-10} \ J

Therefore, the work done in bringing the plates together is 5.9 x 10⁻¹⁰ J.

8 0
2 years ago
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