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3 years ago

What is Diabetic Retinopathy? Describe it in at least 1 paragraph.

Physics

1 answer:

Irina18 [472]3 years ago

4 0

Answer:

Diabetic Retinopathy is a form of diabetes that affects the eyes. It can be caused by damage to the retinas, and can cause permanent damage to the eyes, and even blindness. Initially the patient is asymptomatic and become more visibly affected in later stages. It can be treated if caught early, or in mild cases.

Explanation:

You might be interested in

In reaching her destination, a backpacker walks with an average velocity of 1.20 m/s, due west. This average velocity results, b

GaryK [48]

Answer:

$x_2 = 648.46\ m$

Explanation:

given,

Average velocity due west = 1.20 m/s

case 1

Distance moved in west, x₁ = 5.63 km

speed due west, v₁ = 2.33 m/s

Case 2

Distance moved in east = x₂

speed due east, v₂ = 0.374 m/s

total distance = x₁ + x₂ = 5.62

total time = t₁ + t₂ = 5630/2.33 + x₂/0.374

now,

$average\ velocity = \dfrac{total\ distance}{total\ time}$

$-1.20= \dfrac{-5630 + x_2}{\dfrac{5630}{2.33}+\dfrac{x_2}{0.374}}$

negative sign is used because we want the distance in east but velocity is in west.

$- 2900 - 3.21 x_2 = -5630 + x_2$

$-4.21 x_2 = -2730$

$x_2 = 648.46\ m$

The distance she walked in east is equal to 648.46 m

7 0

3 years ago

Lauryn serves a volleyball with a mass of 2.1 kg. The ball leaves her hand with a speed of 30 m/s.

Naya [18.7K]

Hi! Let's see.

<h3><u>TOPIC: Kinetic Energy.</u></h3>

Explanation:

Data:

Mass(m) = 2.1 kilograms
Speed(v) = 30 m/s
Kinetic Energy(Ek) = ?

==================================================================

Use the kinetic energy formula:

$\boxed{\boxed{\bold{E_{k}=\frac{m*(v)^{2}}{2}}}}$

Replace by the data:

$\boxed{E_{k}=\frac{2.1kg*(30\frac{m}{s})^{2}}{2}}}}}$

We multiply speed squared:

$\boxed{E_{k}=\frac{2.1kg*900\frac{m}{s}}{2}}}$

Multiply in the numerator, without forgetting the units:

$\boxed{E_{k}=\frac{1890J}{2}}}}$

Both numerator and denominador operations are divided:

$\boxed{\bold{E_{k}=945\ J}}$

Answer: The kinetic energy is <u>945 Joules.</u>

Cordially Alejanndraax. Greetings!

8 0

3 years ago

An AC source is rated 220 V, 50 Hz. The average voltage is calculated in a time interval of o.01 s. It (A) must be zero (C) is n

dimaraw [331]

ANSWER AND EXPLANATION:

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INFORMATION

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Frequency - 50Hz. Which means that the time period of the wave if 1/50 = 0.02 sec. Here we are going to check the average voltage for the time interval of 0.01sec. If the interval lies between π/2 to 3π/2. the average voltage will be zero. In all the other cases it will not be zero

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ANSWER

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So, the answer will be <u><em>may be zero. </em></u>

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HOPE THIS HELPS PLEASE MARK ME BRAINLIEST THANK YOU!

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6 0

3 years ago

How can water boil without heat?

kaheart [24]

Answer:

Put water at room temperature into a vacuum chamber and begin removing the air. Eventually, the boiling temperature will fall below the water temperature and boiling will begin without heating. Or if you want to be easy but messy, add dry ice to a bowl of water and watch how the water starts to boil.

3 0

3 years ago

What steps are involved in converting potential energy to kinetic energy

melomori [17]

Answer:

Decreasing in altitude and increasing in velocity

Explanation:

The formula for potential energy is:

$E_p = mgh$

where m is mass, g is constant gravitational energy and h is the potential altitude.

The formula for kinetic energy is:

$E_k = mv^2/2$

where v is the velocity

Since m,g are constant, to convert from potential energy to kinetic energy, h must decreases while v increases. For example dropping an object from a height.

8 0

4 years ago

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