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3 years ago

What is the most important ability of plants? To photosynthesis To have a cell wall To produce Carbon dioxide

Physics

1 answer:

Dafna11 [192]3 years ago

3 0

Answer:

oxygen

Explanation:

plants convert carbon dioxide into oxygen for animals to breathe in return we give the plants carbon dioxide.

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Consider a metal bar of initial length L and cross-sectional area A. The Young's modulus of the material of the bar is Y. Find t

RUDIKE [14]

Answer:

Spring constant = YA / L

Explanation:

Let F be the force being applied on cross sectional area A of metal bar due to which an extension of ΔL is obtained in the wire of length L then

stress = F / A

strain = ΔL /L

Young's modulus = ( F / A ) / (ΔL /L)

Y = ( F L / A ΔL )

( F / ΔL ) = ( YA / L )

Spring constant = ( F / ΔL )

Spring constant = YA / L

6 0

3 years ago

Please help.

Alex787 [66]

Explanation:

mathematically,

$kinetic \: energy \: = \frac{1}{2} m {v}^{2}$

where m= mass

and v=velocity

given that,

kinetic energy=493900J

mass =5040kg

making velocity the subject

$v = \sqrt{ \frac{2 \times kinetic \: energy}{mass} }$

substitute their values in the formula

$v = \sqrt{ \frac{2 \times 493900}{5040} }$

$v = \sqrt{ \frac{987800}{5040} }$

$v = \sqrt{196}$

$v = 14m {s}^{ - 1}$

Thus the velocity is 14meters per second

6 0

3 years ago

Which of these components is present in this circuit schematic?

madreJ [45]

It is the resistor one

7 0

3 years ago

What is the weight of a person with a massa of 80kg

Archy [21]

784 Newtons or 176.37 lbs

5 0

3 years ago

The release of energy by the nucleus of an atom as a result of nuclear fission is radiant energy

Ira Lisetskai [31]

Nuclear Energy
Energy released by nuclear fission or fusion.
So I think the answer is true.

5 0

3 years ago