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3 years ago

Plants give off oxygen as part of photosynthesis. Explain the impact of this process on humans.

Physics

2 answers:

Wittaler [7]3 years ago

6 0

The oxygen helps us live and we breathe out carbon dioxide and it helps them live

Ugo [173]3 years ago

4 0

Answer:

Humans breathe in the oxygen that the plants produce, in return we breathe out carbon dioxide which is what plants breathe in so in total, we both are helping each other.

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The fall of a body on the earth's surface cannot be a complete free fall why ?

leonid [27]

Explanation:

because the boy has larger surface area due to which he offers the larger air resistance which decreases the acceleration so, he will fall towards the earth's surface approximately with constant velocity.

3 0

3 years ago

how do the retinas of the eyes of night hunting animals differ from the retinas of animals that hunt during the day time

maksim [4K]

Night hunting animals have more rod cells in their retinas which allows them to see better in the dark.

4 0

3 years ago

Read 2 more answers

The town of seaside needs to build a new power plant the old coal burning plant produces too much pollution and if no longer saf

drek231 [11]

To generate clean energy the mayor my build the fooling type of energy plants:

wind farms

solar power plants

wave power plants

Explanation:

At the seaside there are winds all over the year and that can be transformed in electrical energy by a wind turbine. The mayor can build a on-shore wind farm (reduced consts) and may also build off-shore wind farms (but these have an increased cost).

The second option is to build solar power plants. It will be cost effective if the people in the town will install solar panels on the building roofs. In this way you decrease the costs with the transportation of electrical energy.

The third option is to install wave power plants which harvest energy from the sea waves. It is a rather new technology, in comparison with the other two, but the initial consts can be amortized over time.

All three options will provide clean energy.

Right now nuclear plants have a very expensive initial costs and they may not be afforded by small towns.

Learn more about:

clean energy sources

brainly.com/question/235226

#learnwithBrainly

7 0

4 years ago

A uniform electric field of magnitude 110 kV/m is directed upward in a region of space. A uniform magnetic field of magnitude 0.

Marizza181 [45]

Answer:

1.7×10^5 ms-1

Explanation:

From

qE= qvB

q= charge on the electron

E = electric field

v= velocity

B= magnetic field

E= vB

v= E/B= 110×10^3/0.6

v= 1.7×10^5 ms-1

3 0

4 years ago

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At Alpha Centauri's surface, the gravitational force between Alpha Centauri and a 2 kg mass of hot gas has a magnitude of 618.2

sergeinik [125]

Answer:

6.86 * 10^8 m

Explanation:

Parameters given:

Mass of hot gas, m = 2 kg

Gravitational Force, F = 618.2 N

Mass of Alpha Centauri, M = 2.178 * 10^30 kg

The gravitational force between two masses (the hot gas and Alpha Centauri) , m and M, at a distance, r, given as:

F = (G*M*m) / r²

Where G = gravitational constant

Therefore,

618.2 = (6.67 * 10^(-11) * 2.178 * 10^30 * 2) / r²

=> r² = (6.67 * 10^(-11) * 2.178 * 10^30 * 2) / 618.2

r² = 4.699 * 10^17 m²

=> r = 6.86 * 10^8 m

We are told that the hot gas is on the surface of Alpha Centauri, hence, the distance between both their centers is the radius of Alpha Centauri.

The mean radius of Alpha Centauri is 6.86 * 10^8 m.

5 0

3 years ago

Read 2 more answers