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hodyreva [135]
3 years ago
10

The accompanying graph represents the theoretical relationship between the volume and the temperature of a gas under constant pr

essure. image According to this graph, the volume of the gas is (5 points) Select one: a. directly proportional to the square of the temperature b. directly proportional to the temperature c. inversely proportional to the temperature d. inversely proportional to the square of the temperature

Physics
2 answers:
nasty-shy [4]3 years ago
6 0

<u>Answer:</u> The correct answer is Option b.

<u>Explanation:</u>

Direct relationship is defined as the relationship in which if one variable increases, the other also increases and vice-versa.

x\propto y

where, 'x' and 'y' are two variables.

Indirect relationship is defined as the relationship in which if one variable increases, the other variable decreases and vice-versa.

x\propto \frac{1}{y}

where, 'x' and 'y' are two variables.

In the question, the two variables are Temperature and Volume and to determine the proportionality of the two variables, we will look at the slope of the graph.

If the slope of the graph is positive, then these variables follow direct proportionality and if the slope is negative, then these variables follow inverse proportionality.

Slope of the graph is calculated by using the formula:

\text{Slope}=\frac{y_2-y_1}{x_2-x_1}

\text{Slope}=\frac{800-600}{80-60}=\frac{200}{20}=10

As, the slope is positive, so the volume and temperature follow direct proportionality.

Hence, the correct answer is Option b.

kipiarov [429]3 years ago
4 0

b. directly proportional to the temperature Based on the options given, the most likely answer to this query is volume of the gas is directly proportional to the temperature.Thank you for your question. Please don't hesitate to ask in Brainly your queries. 
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A camera is equipped with a lens with a focal length of 34 cm. When an object 2.4 m (240 cm) away is being photographed, what is
puteri [66]

Answer:

The magnification is -6.05.

Explanation:

Given that,

Focal length = 34 cm

Distance of the image =2.4 m = 240 cm

We need to calculate the distance of the object

\dfrac{1}{u}+\dfrac{1}{v}=\dfrac{1}{f}

Where, u = distance of the object

v = distance of the image

f = focal length

Put the value into the formula

\dfrac{1}{u}=\dfrac{1}{34}-\dfrac{1}{240}

\dfrac{1}{u}=\dfrac{103}{4080}

u =\dfrac{4080}{103}

The magnification is

m = \dfrac{-v}{u}

m=\dfrac{-240\times103}{4080}

m = -6.05

Hence, The magnification is -6.05.

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2 years ago
A yacht is pushed along at a constant velocity by the wind. The wind force is 180N at an angle of 25 degrees to the direction of
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The parallel component is given by
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3 years ago
A rocket is fired at 100 m/s at an angle of 37, how many seconds did it take to get to the top?
Kobotan [32]

Answer:

6.14 s

Explanation:

The time the rocket takes to reach the top is only determined from its vertical motion.

The initial vertical velocity of the rocket is:

u_y = u sin \theta = (100)(sin 37^{\circ})=60.2 m/s

where

u = 100 m/s is the initial speed

\theta=37^{\circ} is the angle of launch

Now we can apply the suvat equation for an object in free-fall:

v_y = u_y +gt

where

v_y is the vertical velocity at time t

g=-9.8 m/s^2 is the acceleration of gravity

The rocket reaches the top when

v_y =0

So by substituting into the equation, we find the time t at which this happens:

t=-\frac{u_y}{g}=-\frac{60.2}{-9.8}=6.14 s

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If you travel 1.7 km north from your house at noon, and at 6:00 PM you travel 5.4 km south, what is your displacement? 3.7 km no
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<u>Answer</u>

3.7 Km south


<u>Explanation</u>

The definition of displacement is the distance traveled in a specific direction. It is the vector quantity. We add displacements like the way we add vectors.

Taking the direction towards North to be positive (+1.7 Km), the distance towards south would be negative (-5.4 Km).

Now lets add the two values.

(+1.7) + (-5.4) = 1.7 - 5.4

                    = - 3.7 Km      But negative was towards south.

∴ Answer = 3.7 Km south.


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