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koban [17]
3 years ago
7

Which of the following represents a virtual image?

Physics
2 answers:
Naily [24]3 years ago
7 0

Answer:

Option (d)

Explanation:

In case of lenses, the image is said to be virtual if the rays of light after refraction appears to meet at a point.

If an object be placed to the left of a lens and image is also formed to the same side, i.e., left of the mirror, the image is said to be virtual .

By using the sigh conventions, the distance of image on the left has a negative sign .

So, - di be the location of virtual image.

erma4kov [3.2K]3 years ago
3 0
The answer for Apex is D. 
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A sample of helium has a volume of 5 liters at a pressure of 300 torr. What volume does the gas occupy at 500 torr?
marysya [2.9K]

The final volume of the gas is 3 L

Explanation:

We can solve this problem by applying Boyle's law, which states that:

"For a gas kept at constant temperature, the pressure of the gas is inversely proportional to its volume"

Mathematically:

PV=const.

where

P is the pressure of the gas

V is its volume

The equation can also be rewritten as

P_1 V_1 = P_2 V_2

For the sample of helium in this problem, we have:

P_1 = 300 torr

V_1 = 5 L

P_2 = 500 torr

Solving the equation, we can find V_2, the final volume of the gas:

V_2 = \frac{P_1 V_1}{P_2}=\frac{(300)(5)}{500}=3 L

Learn more about ideal gases:

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brainly.com/question/7316997

brainly.com/question/3658563

#LearnwithBrainly

6 0
3 years ago
While traveling along a highway a driver slows from 24 m/s to 15 m/s in 12 seconds. What is the automobile’s acceleration?
Nimfa-mama [501]

Average Acceleration = (change in speed) / (time for the change)

Change in speed = (ending speed) - (starting speed)

                             =   15 m/s - 24 m/s  =  -9 m/s

Acceleration =  (-9 m/s) / (12 sec) =  - 0.75 m/s² .

6 0
3 years ago
The velocity of a 10.0 kg object that has 720 J of kinetic energy is m/s. (Report the answer to two significant figures.)
nikdorinn [45]
Kinetic energy<span> is the </span>energy<span> of motion. An object that has motion - whether it is vertical or horizontal motion - has </span>kinetic energy<span>. It is expressed as:

KE = mv^2 /2

720 = 10.0v^2 /2
v = 12 m/s

Hope this answers the question. Have a nice day.</span>
4 0
3 years ago
Read 2 more answers
The crowd at a concert lifts a singer to a height of 2.2 m. The crowd uses a total of force of 600 N. How much work has the crow
nordsb [41]

Answer:

<h2>1320 J</h2>

Explanation:

The work done by an object can be found by using the formula

workdone = force × distance

From the question we have

workdone = 600 × 2.2

We have the final answer as

<h3>1320 J</h3>

Hope this helps you

7 0
4 years ago
Indica si las siguientes acciones son el resultado de un efecto estatico o dinamico de una fuerza.
Oduvanchick [21]

Answer:

Sabemos por definición que la fuerza es lo que es capaz de producir cambios o deformaciones en un cuerpo y a esto se denomina efecto estático y cuando la alteración ejerce movimiento o reposo se denomina efecto dinámico, con esta base resolvemos que:

-estirar un muelle: efecto estatico

- devolver una volea: efecto dinámico

- aplastar la plastilina: efecto estático

- empujar el carro del supermercado: efecto dinámico

- inflar un globo: efecto estático

8 0
4 years ago
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