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ArbitrLikvidat [17]
4 years ago
5

You hear through social media that Saturn will be visible tonight and that the weather will be clear of any clouds. The instrume

nt that would be BEST for viewing this spectacle would be:
Select one:
a. a radio telescope.
b. binoculars.
c. a refracting telescope.
d. a computer.
Biology
1 answer:
IgorC [24]4 years ago
4 0

Answer:

A. A Radio Telescope.

Explanation: Because it´s saying ¨visible tonight" and ¨Viewing.

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A communications satellite transmits a radio wave at a frequency of 9.4 x 10^9 Hz. What is the signal’s wavelength? Assume the w
sergejj [24]
To calculate this we will use the light equation:
c=λ*f

We have Frequency f=9.4* 10^{9}Hz.
We know that speed of light in vacuum is c =3.8* 10^{8} m/s.
Since a unit of speed of light is m/s, we can change the unit of frequency Hz to 1/s, since Hz means cycles per second (f=1/T).

So:
f=9.4* 10^{9}1/s
<span>c =3.8* 10^{8} m/s
</span>
<span>c=λ*f
</span>⇒ λ= \frac{c}{f}
⇒ λ= \frac{3.8* 10^{8}}{9.4* 10^{9}}
⇒ <span>λ</span>=0.04 m

5 0
4 years ago
Name two specific ranges that enzymes must have.
monitta

Answer:

Similarly, enzymes can only function in a certain pH range (acidic/alkaline). Their preference depends on where they are found in the body. For instance, enzymes in the intestines work best at 7.5 pH, whereas enzymes in the stomach work best at pH 2 because the stomach is much more acidic.

8 0
3 years ago
One statement is an example of a scientific observation. Another statement is an example of a scientific explanation. Identify t
a_sh-v [17]

Answer:

2, 4, and 5 refers to scientific revolution while on the other hand, the remaining statements shows scientific observation.

Explanation:

Cloning has the potential to  significantly benefit a great many  people, so it should not be  considered immoral or risky is refers as scientific observation.

A scientist thinks that he might  find serious inconsistencies in the  fossil record if he conducts an  excavation in a new location is refers scientific explanation because explanation is needed for it which can drawn from the scientific observation.

The rocks present in western Africa  and eastern South America formed  at the same place and at the  same time is scientific observation because the scientists takes the data.

Even if modern organisms are  found in ancient portions of the  fossil record, this wouldn't challenge the theory of evolution in any way is refers to scientific explanation.

The cloning of organisms is an  exciting area of study, and more  resources should be be devoted  to it so it is refers as scientific explanation.

The age, type, and composition of  ancient rocks in western Africa are  nearly identical to the age, type,  and composition of rocks in  eastern South America is scientific observation which is taken by the scientist through research.

4 0
3 years ago
Why is the air colder farther from the earth?
Mandarinka [93]

Answer:

Why is the air colder farther from the earth,you ask ?its easy

Explanation:

A pretty basic answer is that the farther away you get from the earth, the thinner and thinner  the atmosphere gets. The total heat content of a system is directly related to the amount of matter present, so it gets cooler and cooler at higher elevations.

5 0
3 years ago
Which event may lead to speciation? Question 3 options: A. a population is divided by the formation of a river valley. two popul
lora16 [44]

A new island is formed from a volcanic eruption is an event that lead to speciation.

<h3>What is speciation?</h3>

Speciation is the evolutionary process in which in populations of organisms come to being or evolve to become distinct species. The biologist Orator F. Cook made some Discovery and term it speciation in 1906when he performed experiment on cladogenesis, the splitting of lineages, as opposed to anagenesis, phyletic evolution within lineages.

Therefore, A new island is formed from a volcanic eruption is an event that lead to speciation.

Learn more about speciation from the link below.

brainly.com/question/2113835

7 0
2 years ago
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