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Archy [21]
3 years ago
10

Humans have three types of cone cells in their eyes, which are responsible for color vision. Each type absorbs a certain part of

the visible spectrum. Suppose a particular cone cell absorbs light with a wavelength of . Calculate the frequency of this light.
Physics
1 answer:
Drupady [299]3 years ago
4 0

Answer:

This question is incomplete

Explanation:

This question is incomplete because of the absence/omission of the wavelength but the completed question is attached below.

The formula for frequency is f = c/λ

where f is the frequency (unknown)

c is the speed of light (3.0 × 10⁸ m/s)

λ is the wavelength (599 nm)

f = (3 × 10⁸) ÷ 599

f = 500834.73 Hz or 5 × 10⁵ Hz

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La intensidad de corriente que circula por un conductor es 2μA. ¿Que tiempo demoraran 5x1013 electrones en cruzar una determinad
VikaD [51]

Answer:

t = 4 seconds

Explanation:

The question is "The intensity of current flowing through a conductor is 2μA. How long will it take 5x1013 electrons to cross a certain cross section of the conductor? "

Current, I=2\ \mu A=2\times 10^{-6}\ A

No of electrons, n=5\times 10^{13}

We need to find how long will it take to given no of electrons to cross a certain cross section of the conductor.

Electric current,

I=\dfrac{q}{t}

t is time

Also, q = ne

I=\dfrac{ne}{t}\\\\t=\dfrac{ne}{I}\\\\t=\dfrac{5\times 10^{13}\times 1.6\times 10^{-19}}{2\times 10^{-6}}\\\\t=4\ s

So, it will take 4 seconds.

5 0
3 years ago
2. Two people, one on Earth and the other on the Moon, try and lift 200 kg blocks. Which person
Art [367]

Answer:

The person on Earth will have to exert more force to lift their block

Explanation:

The mass of the blocks to be lifted = 200 kg

The location of the first person = On Earth

The location of the second person = On the Moon

The force a person will have to exert to lift the block = The weight of the block = The gravitational force, F, on the block which is given as follows;

F = \dfrac{G \times M_1}{R^2}  \times m_2

Where;

\dfrac{G \times M_1}{R^2}= The acceleration due to gravity on the Earth or the Moon, depending on the location of the block

m₂ = The mass of the block

Therefore, given that the acceleration due to gravity on the Earth is larger than the acceleration due to gravity on the Moon, the weight of the block on the Earth is larger than the weight of the block on the Moon, and the person on Earth have to exert more force to lift the heavier weight of the block on Earth than the person on the Moon will have to exert to lift the same block as the block has a lower weight on the Moon due to lower acceleration due to gravity on the Moon.

6 0
3 years ago
What would the single sample Cohen's d value be if the difference in sample mean and hypothesized mean was 16, and the sample st
ELEN [110]

Answer:

Explanation:

To calculate an effect size, called Cohen's d , for the one-sample t-test you need to divide the mean difference by the standard deviation of the difference, as shown below. Note that, here: sd(x-mu) = sd(x) . μ is the theoretical mean against which the mean of our sample is compared (default value is mu = 0).

6 0
3 years ago
A car going 50mph accelerates to pass a truck. five seconds later the car is going 80mph. calculate the acceleration of the car.
gizmo_the_mogwai [7]
Acceleration is the rate of change of the velocity of an object that is moving. This value is a result of all the forces that is acting on an object which is described by Newton's second law of motion. <span>Calculation of such is straightforward, if we are given the final velocity, the initial velocity and the total time interval. We can just use the kinematic equations. Fortunately, we are given these values. So, we calculate as follows:
</span>
acceleration = v - v0 / t
acceleration = (80 mph - 50 mph) ( 1 h / 3600) / 5 s
acceleration = 1.67 x 10^-3 m / s^2 

Therefore, the acceleration of the car is 1.67 x 10^-3 m / s.
8 0
3 years ago
Read 2 more answers
What is the mass and volume of 1000kg/m3 of water?​
Jobisdone [24]

Answer: The mass would be 1000m3 and the volume would be 1000kg

Explanation:

4 0
3 years ago
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