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3 years ago

8

Assessment

2 answers:

11111nata11111 [884]3 years ago

7 0

Answer:

D

Explanation:

answers A-C are choices that explain a substances physical change NOT chemical. Decomposition is where the chemical structure of a compound will breakdown to smaller molecules.

andrey2020 [161]3 years ago

3 0

Decomposition changes the substance of a composition.

Explanation:

Through decomposition process the chemical substance of a composition undergoes change by breaking into organic elements. It falls under the process of cycle of nutrients and it actually recycles matter that captures space in biosphere.

Generally, living being starts decomposing after their death. This process is initiated by certain bacterial interference. These bacteria are referred to as decomposers. The general steps of decomposition includes- fresh, active decay, bloat, advanced decay and remains.

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Hello there!!

The answer, I think, would be A.

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2 years ago

What is the basic unit of life

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Explanation:

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2 years ago

Which of the following abiotic factors affects the ocean by creating disturbances that move energy through the water? Nutrients

vova2212 [387]

Answer:

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Explanation:

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2 years ago

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Oxygen is taken into the lungs during which process

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3 years ago

What is the magnitude of the force exerted by the biceps fbiceps? What is the magnitude of the force exerted by the elbow felbow

Slav-nsk [51]

Answer:

<u> </u><u>The magnitude of the force exerted by the biceps </u> $f_b_i_c_e_p_s$ <u> is 218.38N</u>

<u>The magnitude of the force exerted by the elbow </u> $f_e_l_b_o_w$ <u> is 194.37N</u>

Explanation:

Firstly , lets calculate the magnitude of force exerted by biceps $f_b_i_c_e_p_s$ -

Mass of the forearm=

$m_f=1.50kg$

Mass of the ball =

$m_b_a_l_l=950g$

= 0.950kg

so, weight of the forearm=

$w_f=m_f$ g

weight of the ball=

$w_b_a_l_l=m_b_a_l_l$ g

Now , balancing torque about the elbow , we have-

$F_b_i_c_e_p_s\times d_b_i_c_e_p_s= w_f\times\frac{d_b_a_l_l}{2} + w_b_a_l_l\times d_b_a_l_l$

(here , distance of the bicep is 2.50cm = 0.025m and distance of the ball is 36cm= 0.36m)

Now putting the given values in the formula -

$F_b_i_c_e_p_s\times 0.025= 0.95\times9.8\times\frac{0.36}{2} +1.50\times 0.36$

$F_b_i_c_e_p_s=218.38N$

Now, lets calculate the force exerted by elbow $F_e_l_b_o_w$ -

Balancing the vertical forces

$F_b_i_c_e_p_s=F_e_l_b_o_w+w_f+w_b_a_l_l$

$F_e_l_b_o_w = 218.38-(1.00\times9.8)-(0.95\times9.8)$

$F_e_l_b_o_w=194.37N$

8 0

2 years ago