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alex41 [277]
2 years ago
12

Ultraviolet (uv) light can be used to estimate protein solution concentrations because ________.

Physics
1 answer:
marshall27 [118]2 years ago
7 0

Ultraviolet (UV) light can be used to estimate protein solution concentrations because amino acids such as Tryptophan and tyrosine residues can absorb at 280 nm.

<h3>Why does UV absorption allow protein study?</h3>

The proteins are macromolecules able to absorb light at different wavelengths, especially at 280 nanometers or nm, which depend on the amino acid residues that form the polypeptide chains, and peptide interaction bonds also absorb light.

In conclusion, Ultraviolet (UV) light can be used to estimate protein solution concentrations because amino acids such as Tryptophan and tyrosine residues can absorb at 280 nm.

Learn more about macromolecules and UV absorption here:

brainly.com/question/19339956

#SPJ1

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List the two types of mechanical waves and define them.
Liula [17]
The two types of mechanical waves are longitudinal waves, and transversal waves.

7 0
3 years ago
An object is thrown upward from the top of a 128​-foot building with an initial velocity of 112 feet per second. The height h of
lorasvet [3.4K]

Answer:

Time, t = 8 seconds

Explanation:

An object is thrown upward from the top of a 128​-foot building with an initial velocity of 112 feet per second. The height h as a function of time t is given by :

h=-16t^2+112t+128

We need to find the time when the object will hit the ground. When it will hit the ground, h = 0

So,

-16t^2+112t+128=0

On solving the above quadratic equation, we get the value of t = 8 seconds. So, after 8 seconds the object will hit the ground. Hence, this is the required solution.

6 0
4 years ago
Which person will most likely hear the loudest sound?
Nataliya [291]

Person standing on A will hear the loudest sound

Explanation:

The intensity of a sound wave (which is proportional to the loudness of the sound) follows an inverse square law, which is:

I\propto \frac{1}{r^2}

where

I is the intensity of the wave

r is the distance from the source of the sound

This equation means that the intensity of the sound wave (and therefore, its loudness) is inversely proportional to the square of the distance  from the source: therefore,

  • As we get closer to the source of sound, the loudness increases
  • As we move away from the source of sound, the loudness decreases

Therefore, the person that will hear the loudest sound is the one standing closer to the source, and therefore person A.

Learn more about sound waves:

brainly.com/question/4899681

#LearnwithBrainly

6 0
4 years ago
Read 2 more answers
Mario golpea el balón con el pie para lanzárselo a Tamara que está situada a 18 m de distancia. El ángulo de salida del balón es
Brilliant_brown [7]

Answer:

y = 0.99 m

Explanation:

This is a projectile launching exercise, let's start by finding the components of the initial velocity, using trigonometry

         cos θ = v₀ₓ / v₀

         sin θ = v_{oy} / v₀

         v₀ₓ = vo cos θ

         v_{oy} = I go sin θ

         v₀ₓ = 15 cos 30 = 12.99 m / s

         v_{oy} = 15 sin 30 = 7.5 m / s

Let's find the time it takes to travel x = 18 m

         x = v₀ₓ t

         t = x / v₀ₓ

         t = 18 / 12.99

         t = 1,385 s

at this point it is at a height of

         y = v_{oy} - ½ g t²

         y = 7.5 1.385 - ½ 9.8 1.385²

         y = 0.99 m

therefore the camera must place the foot 99 cm from the ground

7 0
3 years ago
* A ball is projected horizontally from the top of
bagirrra123 [75]

Explanation:

Given

Ball is projected horizontally from a building of height h=19.6\ m

time taken to reach ground is given by

\text{Cosidering vertical motion}\\\Rightarrow h=ut+0.5at^2\\\Rightarrow 19.6=0+0.5\times 9.8t^2\\\Rightarrow t^2=4\\\Rightarrow t=2\ s

(b) Line joining the point of projection and the point where it hits the ground makes an angle of 45^{\circ}

From the figure, it can be written

\Rightarrow \tan 45^{\circ}=\dfrac{h}{x}\\\\\Rightarrow x=h\cdot 1\\\Rightarrow x=19.6

Considering horizontal motion

\Rightarrow x=u_xt\\\Rightarrow 19.6=u_x\times 4\\\Rightarrow u_x=4.9\ m/s

(c) The vertical velocity with which it strikes the ground is given by

\Rightarrow v^2-u_y^2=2as\\\Rightarrow v^2-0=2\times 9.8\times 19.6\\\Rightarrow v=\sqrt{384.16}\\\Rightarrow v=19.6\ m/s

Thus, the ball strikes with a vertical velocity of 19.6\ m/s

6 0
3 years ago
Read 2 more answers
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