Read the excerpt from "My Lord Bag of Rice." At last the dreadful night was over. Day dawned beautiful and clear. The centipede was gone from the mountain. What historical fact is reflected in this excerpt? 1. Hidesato brought peace to Japan by defeating a rebel force. 2. Hidesato was appointed a general by Japan’s emperor. 3. Hidesato and his forces overthrew the government of Japan. 4. Hidesato was given many gifts for helping the people of Japan.

Answer:

A)  Rt = 1200  Ω B)  I = 0.100 A  the current in the two bulbs is the same  

Explanation:

Part A

As the bulbs are connected in series the equivalent resistance is

    Rt = R1 + R2

    Rt = 400 +800

    Rt = 1200  Ω

With this value we can find the current

    V = I Rt

     I = V / Rt

     I = 120/1200

     I = 0.100 A

In a circuit, the current is constant, so the current in the two bulbs is the same

Part B

The equation for power is

     P = I V = I² R

In the bulb of R = 400  Ω

    P₄₀₀ = 0.1² 400

    P₄₀₀ = 4.00 W

In the bulb of R = 800  Ω

    P₈₀₀ = 0.1²  800

    P₈₀₀ = 8.00 W

Part C

     Pt = I² Rt

     Pt = 0.1² 12

     Pt = 12.0 W

Part D.

The bulbs are in parallel .  In this case the voltage in each bulb is constant,

      V = I R

      i = V/R

     I₄₀₀ = V/R₄₀₀

     I₄₀₀= 120 /400

     I₄₀₀ = 0.300 A

     I₈₀₀ = V/R800

     I₈₀₀ = 120/800

     I₈₀₀= 0.150 A

The current in the bulb with the resistance of 400 Ω is 0.3 A, while the current in the bulb with the resistance of 800 Ω is 0.15 A.

What is power?

Power is the rate at which the energy is been transformed or transferred per unit time.

A.) As we know that the bulbs are connected in series, therefore, the equivalent resistance of both the bulbs can be written as,

R_e = R_1 + R_2\\\\R_e = 400 +800\\\\R_e = 1200\rm\ \Omega

As the voltage is known to be 120 V, while the equivalent resistance is 1200 Ω. therefore, the current can be written as,

V = I \times R_e\\\\I = \dfrac{V}{R_e}\\\\I = \dfrac{120}{1200}\\\\I = 0.100\rm\ A

Since the current in the circuit is constant, the current in the two bulbs is the same.

B.) We know that the equation of power for the circuit can be written as

\rm P = I \times V = I^2 \times R

Since the resistance in the first bulb is of R = 400 Ω, therefore, the power in the first bulb can be written as,

P_{400} = 0.1^2 \times 400\\\\P_{400}= 4.00\rm\ W

The power in the second bulb with resistance, R = 800Ω can be written as,

P_{800} = 0.1^2 \times 800\\\\P_{800}= 8.00\rm\ W

C.) The total power dissipated in both bulbs can be written as,

P_t = I^2 \times R_e\\\\P_t = 0.1^2 \times 12\\\\P_t = 12.0\rm\ W

D.) We know when the bulbs are connected in parallel. therefore, the voltage in each bulb is constant,

I = \dfrac{V}{R}

The current in the bulb with the resistance of 400 Ω,

I_{400} = \dfrac{V}{R_{400}}\\\\I_{400} = \dfrac{120}{400}\\\\I_{400} = 0.300\rm\ A

The current in the bulb with the resistance of 800 Ω,

I_{800} = \dfrac{V}{R_{800}}\\\\I_{400} = \dfrac{120}{800}\\\\I_{400} = 0.15\rm\ A

Hence, the current in the bulb with the resistance of 400 Ω is 0.3 A, while the current in the bulb with the resistance of 800 Ω is 0.15 A.

Answer:

D. GABA (gamma-aminobutyric acid) is the main inhibitory neurotransmitter that an adult vertebrate brain has.

Explanation:

• An inhibitory neurotransmitter transmits impulses of inhibiting effects and therefore reduce the chances that a neuron shall give an action in response.
• The Inhibitory synaptic transmission uses GABA as the neurotransmitter that transmits inhibitory effects.

• This neurotransmitters are used to repress something such as controlling release hormones, through shutting down and opening the release factor in a bid to control the body.

Answer:

The answer is B. glutamate

Explanation:

Answer:

it is for normal growth and development

Answer:

normal growth and development

Explanation:

Answer:

d.

“That is incorrect. The dynasty strengthened and unified China.”

Explanation:

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