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OlgaM077 [116]
3 years ago
7

What kind of relationship is it when a tree needs fungus to be present to grow normally

Physics
1 answer:
galina1969 [7]3 years ago
5 0
I think the question is describing the situation where the tree 
needs the fungus AND the fungus needs the tree.  Each one 
needs the other one in order to survive and grow normally.

This is called "symbiosis", or a "symbiotic" relationship.
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ΔH<span> for the reaction = [sum of heat of formation for products] - [sum of heat of formation for reactants]
   
-6534 = [(12)(-393.5) + (6)(-285.8)] - (2X)

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-6534 = -6436.8 - 2X

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then, divide each side by two to cancel out the numerical coefficient.

x = +48.6 kJ, which is the heat of formation for benzene.</span>
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3 years ago
Recrystallization occurs in which type of rock
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Only in metamorphic rocks does this occur.
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2 years ago
Help me please
agasfer [191]

Answer:

For a velocity versus time graph how do you know what the velocity is at a certain  time?

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How do you know the acceleration at a certain time?

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4 0
3 years ago
a stone is thrown by a person from the top of the building, which is 200m tall. at the same time, another stone is thrown with v
solniwko [45]

Answer:

The time after which the two stones meet is tₓ = 4 s

Explanation:

Given data,

The height of the building, h = 200 m

The velocity of the stone thrown from foot of the building, U = 50 m/s

Using the II equation of motion

                             S = ut + ½ gt²

Let tₓ be the time where the two stones  meet and x be the distance covered from the top of the building

The equation for the stone dropped from top of the building becomes

                            x = 0 + ½ gtₓ²

The equation for the stone thrown from the base becomes

                S - x = U tₓ - ½ gtₓ²  (∵ the motion of the stone is in opposite direction)

Adding these two equations,

                      x + (S - x) = U tₓ

                               S = U tₓ

                               200 = 50 tₓ

∴                                  tₓ = 4 s

Hence, the time after which the two stones meet is tₓ = 4 s   

6 0
3 years ago
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