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OverLord2011 [107]
3 years ago
13

Tell whether the following statements are true or false:

Physics
1 answer:
Digiron [165]3 years ago
8 0

Answer:

1)true

2)false

3)true

4)true

5)false,cz amatter is made of atoms while light is an electromagnetic radiation.

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Water is a(n) ____ factor in all ecosystem that all living things require.<br> (Fill in the blank)
BaLLatris [955]
Biotic i think is the answer
5 0
3 years ago
Read 2 more answers
How much power is used by 4 A appliance that is plugged into a 120 V circuit for 4 minutes
devlian [24]

P=VI

P= 4 × 120= 480W

Energy= Power × time

=480W × 4= 1920W/m

6 0
3 years ago
9th grade science here, please help will mark brainliest
Liono4ka [1.6K]

Answer:

positive. hope this helped

6 0
2 years ago
A laboratory dish, 20 cm in diameter, is half filled with water. One at a time, 0.49 μL drops of oil from a micropipette are dro
irakobra [83]

Explanation:

Formula for path difference is as follows.

             x = 2tn

and,     refractive index (n) = \frac{\lambda}{2t}

Thickness is calculated as follows.

           Thickness (t) = \frac{volume}{area}

       Area = \pi r^{2}

                = \pi \times (\frac{d}{2})^{2}

                = \frac{0.49 \times 10^{-6}}{3.14 \times 0.01 m}

                = 1.56 \times 10^{-8} m

Now, the refractive index will be calculated as follows.

For drop,      n = \frac{\lambda}{2t}

For B drop,    n = \frac{\lambda}{26t}

So,     n = \frac{640 \times 10^{-9}}{26 \times 1.56 \times 10^{-8}}

            = \frac{640 \times 10^{-9}}{40.56 \times 10^{-8}}

            = 1.5

Thus, we can conclude that index of refraction of the oil is 1.5.

6 0
3 years ago
Using the interactive map, available at ejatlas.org, identify two separate environmental justice issues ongoing anywhere in the
NeTakaya

Answer:

Explanation:

1) The specific issue is the emission of the CO2 gases into the atmosphere and conflicts over coal extraction as leaving the oil in the soil.

2)Land acquisition conflicts and the Agro fuels industries and biomass energy plants are causing more environmental problems.

EJOCT project is meant for considering the causes of climate debt and ecological debt and designed many projects under the clean development mechanism allowing rich countries to offset their emissions by reducing emissions.

Large parts of the global justice movement united around a push for the concept of climate debt in copenhagen climate summit.In the people's summit in Bolivia in 2010, climate debt was considered as the over consumption of the Earth's atmosphere and climate system to absorb green house gases by the developed countries. The map shows the spatial mal distribution of climate change sources and its impacts.

Yes the methods the Summits are taking are correct and can reduce the emission of CO2 gases. The methods they were implementing are supportable to the environment.If the people follow those methods the climate debt can be minimised.I have taken this topic as the emission of CO2 gases is the main problem all the world.Due to this the melting of Ice and Global warming are occuring.This was the main problem to solve all over the world as the no. of Industries and vehicles and population is increasing.These movements are an appropriate way to change and improve the environment in which people have to live.

8 0
3 years ago
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