PHYSICS HIGH SCHOOL

Could anyone explain how to size of an image works in a pinhole camera?

Answers

Answer 1
Answer: An image of an object can be used to determine the object's size or the distance to the object. The ability of the human eye's lens to focus an image on the retina is aided by the eye's pupil (the eye's aperture), which acts as a pinhole camera.

Related Questions

Which term describe the substance that forms when two or more types of atoms join?A. element B. compound C. composite D. mixture
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Which one of the following types of electromagnetic radiation causes certain substances to fluoresce? A. Cosmic raysB. Ultraviolet rays(C. X rays)D. Infrared wavesA virtual image produced by a lens is always A. located in front of the lens.(B. located in the back of the lens.)C. smaller than the object.D. larger than the object.Reflecting telescopes are popular because they're A. more durable than a refracting telescope.B. more powerful than a refracting telescope.C. easier to build than a refracting telescope.(D. smaller than a refracting telescope.)The unit for measuring the rate at which light energy is radiated from a source is the A. lux.B. lumen.(C. candela.)D. AngstromA magnifying glass is an example of a _______ lens. A. plano-concave(B. plano-convex)C. double-concaveD. convergingmy answer is in ( ) and the answers are wrong please tell me the correct answer because i dont have a clue

Which of the following occurs when the fight-or-flight response is triggered?

Answers

Answer:

A  or B

Explanation:

The autonomic nervous system has two components, the sympathetic nervous system and the parasympathetic nervous system. The sympathetic nervous system functions like a gas pedal in a car. It triggers the fight-or-flight response, providing the body with a burst of energy so that it can respond to perceived dangers.

Final answer:

The fight-or-flight response is a physiological reaction triggered by a perceived threat or danger. It prepares the body for action by releasing stress hormones and increasing heart rate. This response helps individuals to either fight the threat or flee from it.

Explanation:

The fight-or-flight response is a physiological reaction that occurs in response to a perceived threat or danger. When triggered, the body releases stress hormones like adrenaline and cortisol, which prepare the body for action.

This response can help increase heart rate, dilated pupils, and redirect blood flow to the muscles, enabling the individual to either fight the threat or flee from it.

Learn more about Fight-or-flight response here:

brainly.com/question/33605762

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During exercise, the amount of ____________ carried in the blood to the muscles increases.

Answers

The correct answer is: Oxygen

Explanation:
In order to function properly (movement etc.) during exercise, muscles require oxygen. During exercise, the depth as well as the rate of breathing increase, which in turn increases the amount of oxygen inhaled. In order to expand and contract lungs and for other bodily movements, muscles require oxygen, and for that, more oxygen is carried in the blood to muscles. Hence, the correct answer is Oxygen.

Your answer would be oxygen because when doing moderate to vigorous workouts, your body needs more oxygen to be supplied to your muscles.

C12H22O11 + 11H2SO4 12C + 11H2SO4 + 11H2OHow do you know the concentrated sulfuric acid is a catalyst?

Answers

By looking at the equation 
C12H22O11 + 11H2SO4 12C + 11H2SO4 + 11H2O
we can conclude that the concentrated sulfuric acid is a catalyst because
the sulfuric acid doesn't react with the reactant and it is not consumed.

Hope this helps! If you have any other questions or would like further explanation just let me know!! :)

Answer:no

Explanation:

If people from Georgia have just experienced an extremely cold winter the last couple of months, what would the climate most likely be classified as? Polar
Temperate
Maritime
Tropical

Answers

temperate I'm not sure, cuz polar is like freeze, and tropical is hot

Answer:

polar

Explanation:

they said it was extreme so atleast it would be polar

a boy on a bicycle is resting at the top of a hill then he rides his bicycle down the hill describe how the boy potential and kineti energy differ at the top middle and bottom of the him

Answers

Answer:

Explanation:

As the boy is riding from top to bottom of the hill his Potential energy gradually decreasing and simultaneously converting into the Kinetic energy.

At the top, his Potential Energy is maximum and kinetic energy is minimum i.e. zero

In the middle of the hill, he possesses both Potential and kinetic energy with equal magnitude.

At the bottom whole Potential energy is converted into Kinetic energy.

Thus Potential Energy is maximum at the top while Kinetic energy is maximum at the bottom.        

How would one be able to travel in time?

Answers

The most important thing that one would need to have is a clear, vivid, active, convincing imagination. In reality, time travel is not possible.
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