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3 years ago

Help please fill in the blank

Physics

2 answers:

adoni [48]3 years ago

8 0

Sun spots and photosphere.

umka21 [38]3 years ago

7 0

Answer:

sunspots; photosphere

Explanation:

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If the temperature of the conductor is increased, the electrons’ speeds decrease

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3 years ago

Joe is hiking through the woods when he decides to stop and take in the view. He is particularly interested in three objects: a

Novosadov [1.4K]

Answer:

A) correct answer is C, B) correct answer is b and C) The correct answer is b

Explanation:

In the exercises of geometric optics, the equation of the constructor tells us the location of the image.

1 / f = 1 / p + 1 / q

where f is the focal length of the cornea-crystalline system, p and q are the distances to the object and the image.

In this case, the distance to the image on the retina is constant, about 3 cm. Therefore depending on the distance to the object) p = the focal length must change

1 / q = 1 / f 1 / p

let's apply this expression to our case

A) indicates that the tree is at a medium distance

so that the image is formed on the retina THE SAME AS

correct answer is C

B) The squirrel is at a smaller distance (p ') than the tree (p), therefore if we substitute in the equation above we find that q must decrease. Consequently the image is in front of the retina

The mountain is very far, suppose in infinity, so the image is BEHIND THE RETINA

therefore the correct answer is b

C) The squirrel is very close so the curvature of the lens INCREASES, resulting in a DECREASE in the focal length

The correct answer is b

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3 years ago

Which of these was Sir Isaac Newton not known for? invention of calculus invention of the microscope the Three Laws of Motion un

Akimi4 [234]

<span>The correct answer is option B. i.e.invention of the microscope. Galileo Galilei invented the microscope and showed its use. Sir Issac Newton invented some part of the calculus, Also invented Newton's Laws of motion and the universal gravitation theory.</span>

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4 years ago

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A bond between two copper atoms would be a<br> bond? *

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A metallic bond would be formed

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3 years ago

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A charged object traveling 7 m in a uniform electric field of 5 N/C experiences a 4 J increase in Kinetic Energy.

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To solve this problem it is necessary to apply the principles of conservation of Energy in order to obtain the final work done.