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brilliants [131]
3 years ago
9

1.)Which of the following would be considered an ecosystem?

Physics
2 answers:
Olenka [21]3 years ago
7 0
The answer is "a desert of rocks, sand, hawks, snakes, and scorpions" so b
Masteriza [31]3 years ago
6 0
The answer to this question is B.) because it is a variety of biotic and abiotic factors interacting with each other.
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Experts, ACE, Genius... can anybody calculate for the Reactions at supports A and B please? Will give brainliest! Given: fb = 30
dybincka [34]

Answer:

Support at Cy = 1.3 x 10³ k-N

Support at Ay = 200 k-N

Explanation:

given:

fb = 300 k-N/m

fc = 100 k-N/m

D = 300 k-N

L ab = 6 m

L bc = 6 m

L cd = 6 m

To get the reaction A or C.

take summation of moment either A or C.

<em><u>Support Cy:</u></em>

∑ M at Ay = 0

      (( x1 * F ) + ( D * Lab ) + ( D * L bc + D * L cd )

Cy = -------------------------------------------------------------------

                                      ( L ab + L bc )

Cy = 1.3 x 10³ k-N

<em><u>Support Ay:</u></em>

Since ∑ F = 0,           A + C - F - D = 0

                                   A = F  + D - C

                                  Ay = 200 k-N

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Which action will increase the gravitational force between two objects?
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