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cupoosta [38]
4 years ago
15

Which describes an image that can be produced by a concave lens?

Physics
1 answer:
mixer [17]4 years ago
5 0
A concave is when the bump is pressed downwards; So if the image has a downward hole, then it's concave. If it's pressed upwards like a hill or mountain, then it's convex.
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The weight of an astronaut on the moon is the same as on Earth.<br> True<br> False
Vaselesa [24]

Answer:

False

Explanation:

This is due to the gravitational pull, since the moon does not have the same force or gravity like Earth, your weight would change.

☆anvipatel77☆

•Expert•

Brainly Community Contributor

5 0
3 years ago
Read 2 more answers
What are the advantage of so unit​
jeka94

Answer:

The greatest advantage of SI is that it has only one unit for each quantity (type of measurement). This means that it is never necessary to convert from one unit to another (within the system) and there are no conversion factors for students to memorize.

Please mark brainliest :)

6 0
4 years ago
Humans require organ systems to carry out life processes. Single-celled organisms do not have organ systems and yet they are abl
k0ka [10]

Answer: is <em><u>Organelles present in single-celled organisms act in a manner similar to organ systems</u></em>

<em><u /></em>

Explanation:  

Multicellular organisms organ system play a critical role for the smooth functioning of whole body. Millions of cells combined to make an organism. The role of organ system in whole body is to provides oxygen and nutrients to the cells and eliminates the toxic material such as carbon dioxide. Organ systems like, respiratory system, digestion system, and cardiovascular play an important role in the human body to perform various functions for its survival.  

Unlike multicellular organisms the unicellular only consists of single cell e.g. prokaryotic organisms and eukaryotic organisms namely, Amoeba, Euglena, salmonella, Fungi etc. Single celled organisms are able to carry out all processes mandatory for the sustenance of life with the help of single cell only e.g. respiration and digestion.They can survive with the help of single cell. Unlike multicellular organisms unicellular do not require multiple number of cell for its survival.

5 0
3 years ago
A car is traveling at 52.4 km/h on a flat
natali 33 [55]
Work is equal to a force over a distance and is equal to the change in kinetic energy, so
<span>
- Fd=ΔKE
</span> <span>−Fd=1/2m<span>v22</span>−1/2m<span>v21</span></span>
<span>d=(1/2m<span>v22</span>−1/2m<span>v21</span>)/−F

</span> We know that Ffric=kFnatural and Fnatural=mg so:

<span>d=(1/2m<span>v22</span>−1/2m<span>v21</span>)/−(k∗mg)</span><span>d=(−1/2<span>v21</span>)/−(k∗g)

</span><span>d=(−1/2×(14.6m/s<span>)2</span>)/−(0.137×9.8m/s)

</span><span> d = 78.9m</span>
8 0
3 years ago
Compare and contrast transverse and longitudinal waves
Nataliya [291]

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The difference between transverse and longitudinal waves is that:

In transverse waves; the displacement of the medium is perpendicular to the propagation of the waves.

In longitudinal waves; the displacement of the medium is parallel to the propagation of the waves.

5 0
3 years ago
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