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3 years ago

How can a small human retina detect objects larger than itself?

2 answers:

8 0

The best answer is C."the brain interprets the size of the images"
Because, light reflects off the things in the world, then is focussed by our eye's lens. The light changes the light image we are seeing from the distal stimulus(or 3 diminutional world) to the proximal stimulus(or 2 dimensional world), but the image is not actually interpreted until it passes through the retina and optic nerve. The retina converts light into electrical impulses and the optic nerve carries those impulses to the brain. The Brain then changes the electrical impulses into a visual image.

aliya0001 [1]3 years ago

7 0

Exactly the same way that you can photograph a mountain or a skyscraper
with the itty bitty camera in your smartphone.

Lenses are used to form a tiny image of a gigantic object.

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2019kL is the same as__dL?

Gwar [14]

If kl is kiloliters and dl is deciliters, 2019kl=2.019e+7

4 0

3 years ago

Use the information from the graph to answer the question. What is the acceleration of the object

Art [367]

Answer:

-2.5 m/s²

Explanation:

The acceleration of a body is the change in it's velocity with time.

The change in velocity with time can be obtained as the slope of a velocity time graph ;

Acceleration = (change in velocity / change in time)

Taking the slope :

Change in Velocity = △y = y2 - y1

Change in time = △x = x2 - x1

(10, 15) ; (0, 40)

△y / △x = y2 - y1 / x2 - x1 = (40 - 15) / (0 - 10)

△y / △x = 25 / - 10 = - 2.5 m/s²

4 0

3 years ago

An automobile battery has an emf of 12.6 V and an internal resistance of 0.0600 . The headlights together present equivalent res

murzikaleks [220]

Answer:

(a) $V=11.86\ V$

(b) $V=9.76\ V$

Explanation:

<u>Electric Circuits</u>

Suppose we have a resistive-only electric circuit. The relation between the current I and the voltage V in a resistance R is given by the Ohm's law:

$V=R.I$

(a) The electromagnetic force of the battery is $\varepsilon =12.6\ V$ and its internal resistance is $R_i=0.06\ \Omega$ . Knowing the equivalent resistance of the headlights is $R_e=5.2\ \Omega$ , we can compute the current of the circuit by using the Kirchhoffs Voltage Law or KVL:

$\varepsilon=i.R_i+i.R_e=i.(R_i+R_e)$

Solving for i

$\displaystyle i=\frac{\varepsilon}{ R_i+R_e}=\frac{12}{0.06+5.2}=2.28\ A$

i=2.28\ A

The potential difference across the headlight bulbs is

$V=\varepsilon -i.R_i=12\ V-2.28\ A\cdot 0.06\ \Omega=11.86\ V$

$V=11.86\ V$

(b) If the starter motor is operated, taking an additional 35 Amp from the battery, then the total load current is 2.28 A + 35 A = 37.28 A. Thus the output voltage of the battery, that is the voltage that the bulbs have is

$V=\varepsilon -i.R_i=12\ V-37.28\ A\cdot 0.06\ \Omega=9.76\ V$

5 0

3 years ago

Gamma rays have a higher frequency than visible light waves. What can you conclude from this?

NeTakaya

Answer:

i think it d

Explanation:

3 0

3 years ago

Read 2 more answers

Which device would a sleep researcher use to monitor a sleeping person's brain waves?

Alekssandra [29.7K]

Answer:

A sleep researcher will use EEG to monitor a sleeping person's brain waves.

Explanation:

EEG stands for 'Electroencephalogram'. The EEG test is done to track and record brain wave patterns. Electrodes are placed on a person's brain scalp which detects brain signals and send it to a computer which shows the brain waves pattern. A researcher or a doctor can compare it to the pattern of waves of a normal brain and look for abnormalities to detect a special condition or disease.

EEG is used to find problems related to electrical activity of the brain. It is usually done to diagnose and monitor seizure disorders. Also, to observe brain activity in case of sleeping disorders or change in behavior.

5 0

4 years ago