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3 years ago

12

What should you to prevent cross contamination when using cutting boards?

1 answer:

barxatty [35]3 years ago

8 0

There are two different ways you can handle it:

1). Use two different cutting boards ...
one for meat and one for vegetables.

2). Wash the board with soap and hot water
BETWEEN the chicken and the veggies.
(Also don't forget your hands, and the knife.)

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My dad gifted me a calculator. I have observed that very small cells are used in a calculator. What are these cells called and w

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The cells are called insibatss, I think I spelled that right but

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3 years ago

Dogs are able to hear much higher frequencies than humans are capable of detecting. For this reason, dog whistles that are inaud

stellarik [79]

Wavelength = 1/frequency thus wavelength =1/30000

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3 years ago

The object has a redshift of 7.6 and the JWST observes the object at a wavelength of 2 microme-

olasank [31]

b. The wavelength of light emitted by the object is 233 nm

c. The type of radiation originally emitted by the object is ultraviolet radiation.

To find the wavelength, we need to know what redshift is.

<h3>What is redshift?</h3>

Redshift is the increase in wavelength and the corresponding decrease of frequency and photon energy of electromagnetic radiation.

Redshift is given by z = λ'/λ - 1 where

λ' = observed wavelength and
λ = emitted wavelength.

Making λ subject of the formula, we have

λ = λ'/(1 + z)

Given that has a redshift of 7.6 and the JWST observes the object at a wavelength of 2 micrometres (mid-infrared light).

So,

z = 7.6 and
λ' = 2μm

<h3>(b) What is the wavelength of the light emitted by the object?</h3>

Substituting the values of the variables into the equation, we have

λ = λ'/(1 + z)

λ = 2μm/(1 + 7.6)

λ = 2μm/8.6

λ = 0.233 μm

λ = 233 nm

So, the wavelength of light emitted by the object is 233 nm

<h3>c. What type of radiation was originally emitted by the object?</h3>

Since the wavelength is 233 nm and the wavelength is in the range of ultraviolet radiation 200 nm - 315 nm.

So, the type of radiation originally emitted by the object is ultraviolet radiation.

Learn more about redshift here:

brainly.com/question/27915180

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3 years ago

A car accelerates at a rate of 3 m/s^2. If its original speed is 8 m/s, how many seconds will it take the car to reach a final s

kkurt [141]

Answer:

$\Large \boxed{\mathrm{5.67 \ seconds }}$

Explanation:

$\displaystyle \mathrm{acceleration \ = \ \frac{final \ velocity - initial \ velocity }{elapsed \ time}}$

$\displaystyle A \ = \ \frac{V_f - V_i }{t}$

$\displaystyle 3 \ = \ \frac{25 - 8 }{t}$

$\displaystyle 3 \ = \ \frac{17 }{t}$

$\displaystyle t \ = \ \frac{17 }{3} \approx 5.67$

4 0

3 years ago

What is kinematics?<br>explain!! ~<br><br>thankyou ~

Novay_Z [31]

Answer:

Kinematics is the study of motion of a system of bodies without directly considering the forces or potential fields affecting the motion.

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3 years ago

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