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Temka [501]
3 years ago
7

8)

Physics
2 answers:
Jobisdone [24]3 years ago
7 0
Hey!!

here is your answer >>>

We know that, acids and strong bases are good conductors of electricity!. And gold conducts electricity , while the best is silver and niext comes gold!. And H20 which is water contains less ions , so it is not a good conductors , it is a conductors but not a good conductor!. Salt in it's solid for cannot produce ions, hence, it cannot conduct electricity , but when this salt is mixed with water or when it is in it's molten state it can conduct electricity!. So now,the answer for the question is ,

B) III and IV only!.

Hope my answer helps!
Sergio039 [100]3 years ago
7 0

The correct answer here is B) III IV only

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If a species can adapt to a changing environment, or ____, its descendants will survive.
QveST [7]
Evolve.

This is because adapt and evolve correspond to each other.

If a species evolves, it is to "adapt" to a certain ecosystem or environment.

Hope this helped!
4 0
3 years ago
A platinum sphere with radius 0.0199 m is totally immersed in mercury. Find the weight of the sphere, the buoyant force acting o
zepelin [54]

Answer:

Weight = 6.919 n

Buoyant force = 4.397 N

Apparent weight = 2.522 N

Explanation:

radius, r = 0.0199 m

density of platinum = 2.14 x 1064 kg/m^3

density of mercury = 1.36 x 1064 kg/m^3

Weight of sphere= volume of sphere x density of platinum x g

                            = 4/3 x 3.14 x (0.0199)^3 x 2.14 x 10^4 x 9.8 = 6.919 N

Buoyant force acting on sphere =  Volume of sphere x density of mercury x g

                            = 4/3 x 3.14 x (0.0199)^3 x 1.36 x 10^4 x 9.8 = 4.397 N

Apparent weight = True weight - Buoyant force = 6.919 - 4.397 = 2.522 N

         

8 0
4 years ago
What is the speed of an electron traveling 32 cm in 2 ns?
abruzzese [7]

Answer:

Speed, v=1.6\times 10^8\ m/s

Explanation:

Given that,

Distance covered by the electron, d = 32 cm = 0.32 m

Time, t = 2 ns

We need to find the speed of an electron. Speed is equal to distance covered divided by time. So,

v=\dfrac{0.32}{2\times 10^{-9}}\\\\v=1.6\times 10^8\ m/s

So, the speed of the electron is 1.6\times 10^8\ m/s.

6 0
3 years ago
In any ecosystem, the organisms ___________ for resources, such as food, water, and space. compete fight kill
Rashid [163]

Compete

Explanation:

In any ecosystem, it is a known fact that the organisms compete for resources such as food, water, and space.

An ecosystem is made up of different communities of organisms interacting with one another and their environment.

  • Resources in any environment are limited and are not able to satisfy the needs of the organisms.
  • This leads organisms to compete for them.
  • they begin to develop different behaviors that can enhance their chances of accruing more resources to themselves.

learn more:

Ecosystem brainly.com/question/7846024

#learnwithBrainly

3 0
3 years ago
Read 2 more answers
What happens if a mid-ocean ridge occurs on land
Gnesinka [82]

Answer:

Despite being such prominent feature on our planet, much of the mid-ocean ridge system remains a mystery. While we have mapped about half of the global mid-ocean ridge in high resolution, less than one percent of the mid-ocean ridge has been explored in detail using submersibles or remotely operated vehicles. so therefore we do not have enough information about them to know what will happen

Explanation:

A mid-ocean ridge or mid-oceanic ridge is an underwater mountain range, formed by plate tectonics. This uplifting of the ocean floor occurs when convection currents rise in the mantle beneath the oceanic crust and create magma where two tectonic plates meet at a divergent boundary. Mid-ocean ridges occur along divergent plate boundaries, where new ocean floor is created as the Earth’s tectonic plates spread apart. As the plates separate, molten rock rises to the seafloor, producing enormous volcanic eruptions of basalt. The speed of spreading affects the shape of a ridge  slower spreading rates result in steep, irregular topography while faster spreading rates produce much wider profiles and more gentle slopes.

4 0
3 years ago
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