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3 years ago

Some students set up a circuit and decided to measure the voltage at different points around

Physics

1 answer:

Fiesta28 [93]3 years ago

3 0

Answer:

V₁ = 6 V , V₂ = V₃ = 3 V

Explanation:

To solve this circuit we must remember that there are two fundamental types of construction in series and parallel.

* a serial circuit there is only one path for current

in this circuit the constant current in the entire circuit and the voltage is the sum of the voltage of each term

* Parallel circuit in this there are two or more paths for the current

in this circuit the voltage is constant and the east is divided between each branch

with these principles let's analyze the proposed circuit

The DC battery is in parallel with resistor R1 and the equivalent of the other branch,

as in a parallel circuit the voltage is constant

V₁ = 6 V

in the other branch (23) it forms a series construction, where the current is constant

6 = iR₂ + iR₃

as they indicate that each resistance has the same value

6 = 2 iR

V = V₂ = V₃ = 3 V

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Kepler proposed the modern model of the solar system. <br> True or False

givi [52]

Answer:

True

Explanation:

Johannes Kepler was a German astronomer, mathematician and astrologer. He proposed a model of the solar system which remains in use, with some modifications. Moreover, he developed the laws of planetary motion which explain how the planets move around the sun. This work was not only significant on its own, but it also provided the foundations for Newton's theory of universal gravitation.

4 0

3 years ago

If 3.61 m3 of a gas initially at STP is placed under a pressure of 2.67 atm , the temperature of the gas rises to 37.9 ∘C. What

Pavel [41]

Answer: $1.54m^3$

Explanation:

Combined gas law is the combination of Boyle's law, Charles's law and Gay-Lussac's law.

The combined gas equation is,

$\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}$

where,

$P_1$ = initial pressure of gas at STP = 1 atm

$P_2$ = final pressure of gas = 2.67 atm

$V_1$ = initial volume of gas = $3.61m^3$

$V_2$ = final volume of gas = ?

$T_1$ = initial temperature of gas at STP = $0^oC=273+0=273K$

$T_2$ = final temperature of gas = $37.9^oC=273+37.9=310.9K$

Now put all the given values in the above equation, we get:

$\frac{1atm\times 3.61m^3}{273K}=\frac{2.67\times V_2}{310.9K}$

$V_2=1.54m^3$

Thus the final volume will be $1.54m^3$

7 0

3 years ago

In descriptive scientific investigations, scientists often make observations to understand the interacting parts of a complex __

weqwewe [10]

Answer: The correct answer would be a complex system.

Explanation:

6 0

3 years ago

Read 2 more answers

Help me pleaseeeeeeddd

Vladimir79 [104]

Answer:

Explanation:

a )

According to graph the object moves with constant velocity of 10 m /s during first 8 s and then its velocity changes to - 5 m /s from 8 th second upto 12 th second .

Initial displacement = 8 m

displacement during 8 s = velocity x time

= 8 x 10 = 80 m

total displacement = 88 m

b )

displacement during period from 8 th to 12 th s

= - 5 x 4 = - 20 m

total displacement after 12 s

= 88 - 20 = 68 m

c ) average speed = total distance covered during 12 s / total time

= (80 + 20) / 12

= 8.33 m /s

average velocity = total displacement during 12 s / total time

= 80 - 20 / 12

= 60 / 12

= 5 m /s .

7 0

3 years ago

A bat is flitting about in a cave, navigating via ultrasonic bleeps. Assume that the sound emission frequency of the bat is 37.5

n200080 [17]

Answer:

39.11 Hz

Explanation:

Data provided in the question:

Frequency of sound emission, $f_0$ = 37.5 kHz = 37500 Hz

Speed of bat, $v_{bat}$ = 0.021 times the speed of sound

Now,

Frequency heard by bat = $f_0\times(\frac{v+v_{bat}}{v-v_{bat}})$

Therefore,

The Frequency heard by bat will be = $37500\times(\frac{343+0.021\times343}{343-0.021\times343})$

Frequency heard by bat will be= $37500\times\frac{350.203}{335.797}$

Frequency heard by bat will be = 39108.78 Hz = 39.11 Hz

5 0

3 years ago