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baherus [9]
3 years ago
15

What are the benefits and dangers of visual light waves

Physics
1 answer:
Anton [14]3 years ago
5 0

Blue-violet light on the visible light spectrum can cause damage to retina cells, increasing one's risk of developing age-related macular degeneration, explains Essilor.


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A sky diver, mass 90 kg, reaches a terminal velocity of 60 m/s. What is the approximate magnitude of the force of air resistance
Komok [63]

Answer:

The approximate magnitude of the force of air resistance is 540 N.

Explanation:

6 0
2 years ago
Acceleration is defined as the change in velocity divided by
denpristay [2]

Answer:

Time elapsed

Explanation:

Acceleration is a vector quantity. It is defined as:

a=\frac{v-u}{t}

where

v is the final velocity

u is the initial velocity

t is the time elapsed

Acceleration is measured in meters per second squared (m/s^2). It must be noticed that acceleration is a vector, so it also has a direction. In particular:

- when acceleration is negative, it means that the object is slowing down, so acceleration is in opposite direction to the velocity

- when acceleration is positive, it means that the object is speeding up, so acceleration is in the same direction as the velocity

3 0
3 years ago
If an object measures to be 80 centimeters in length, then it is equivalent to ____​
Lana71 [14]

Answer:

31.496 inches

Explanation:

7 0
4 years ago
A mass on a spring oscillates with a period T. Part A If both the mass and the force constant of the spring are doubled, the new
garik1379 [7]

Answer:

The new time period will be T.

Explanation:

The time period in terms of spring constant and mass is given by :

T=2\pi\sqrt{\dfrac{m}{k}}

If mass and force constant is doubled, m' = 2m and k' = 2k

New time period is given by :

T'=2\pi\sqrt{\dfrac{m'}{k'}}

T'=2\pi\sqrt{\dfrac{2m}{2k}}

T'=2\pi\sqrt{\dfrac{m}{k}}

T'=T

So, the new period will remains the same. Hence, the correct option is (C).

4 0
3 years ago
What are em waves expain in details
Tresset [83]
Electromagnetic waves or EM waves are waves that are created as a result of vibrations between an electric field and a magnetic field. ... They are hence known as 'electromagnetic' waves. The electric field and magnetic field of an electromagnetic wave are perpendicular (at right angles) to each other.

Hope this helps.
:)
7 0
3 years ago
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