The star α centauri c and the star groombridge 34 b have the same apparent magnitude, but α centauri c is 1.3 pc away from earth and groombridge 34 b is 3.5 pc away. what is the luminosity of groombridge 34 b compared with α centauri c?

Answers

Answer 1

Answer:

Answer:

It can be concluded that groombrige 34 b is more luminous than $\alpha$ centauri c since they have the same apparent magnitude.

Explanation:

The apparent magnitude is the brightness that a star appears to have as seen from the earth.

This can variate as a consequence of the distance or radius of the star.

for example, if one of two stars has a bigger radius that a second one, the free mean path of the photons will be higher than in the smaller one, so the bigger one will be more luminous.

In the case of the distance, if for example, two motorbikes with its lights on are approaching an observer, but one of the motorbikes is at a greater distance, it will appear that is light is dimmer compared to the one that is closer. Even if both emit the same amount of light per unit of time.

Therefore, it can be concluded that groombrige 34 b is more luminous than $\alpha$ centauri c since they have the same apparent magnitude.

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If a certain gas occupies a volume of 12 l when the applied pressure is 6.0 atm , find the pressure when the gas occupies a volume of 3.0 l .

Answers

From Boyle's law, the volume of a fixed mass of a gas is inversely proportional to its pressure at constant absolute temperature.
Therefore; P1V1 =P2V2; where PV is a constant
hence; 12 × 6 = 3× p2
p2 = 72/3
= 24 atm
Therefore; the new pressure will be 24 atm

A species of insect is newly introduced into the United States from the Philippines. This insect becomes established, laying its eggs on the leaves of oak trees. How can a biologist determine if the relationship between the insect and the oak tree is commensalism, mutualism, or parasitism?

Answers

Commensalism describes the interaction between the insect and the oak tree.

What is commensalism?

It is a type of biological interaction between two species in which one of the interacting species is benefitted while the other species is unaffected.

How is the above interaction commensalism?

Since the insect gets a safe place to lay its egg it gains from this interaction while the tree is unaffected.

When will this interaction be a mutualism interaction?

When both the organisms benefit from the interaction.
If the insect helps in the pollination of the tree while the insect gets a safe place to lay its egg.

When will this interaction be a parasitic interaction?

When one of the organism benefit at the expense of the other.
For example, If the insect sucks the sap of the tree on which it lays its egg. The insect benefits while the tree is harmed.

To learn more about biological interaction, species, and commensalism here,

brainly.com/question/14224704

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Answer:

its D!!!

Explanation:

If the insect benefits and the tree neither benefits nor is harmed, the relationship is commensalism.

In which situation can you be at rest and moving at the same time?When playing soccer, you are at rest relative to the ball and moving relative to the field.

When swimming, you are at rest relative to the water and moving relative to the sides of the pool.

When riding a bike, you are at rest relative to the bicycle and moving relative to the road

Answers

I think the answer is ( When riding a bike...)

I believe the last one about the bike is correct.

Consider a single slit that produces a first-order minimum at 16.5° when illuminated with monochromatic light. show answer No Attempt 50% Part (a) At what angle, in degrees, is the second-order minimum?

Answers

Answer:

$\theta_2 = 34.61^0$

Explanation:

Path difference for the destructive interference of a single slit:

$D sin \theta = n \lambda$

For the first - order minimum, n = 1, and $\theta = \theta_1$

$D sin \theta_1 = \lambda$ .........(1)

For the second - order minimum, n = 2, and $\theta = \theta_2$

$D sin \theta_2 = 2 \lambda$ .........(2)

Dividing equation (2) by equation (1):

$(D sin \theta_2)/(Dsin \theta_1) = (2 \lambda)/(\lambda) \n( sin \theta_2)/(sin \theta_1) = 2 \n\theta_1 = 16.5^0\n( sin \theta_2)/(sin 16.5) = 2\nsin \theta_2 = 2 sin 16.5\nsin \theta_2 = 0.568\n\theta_2 = sin^(-1) 0.568\n\theta_2 = 34.61^0$

The main difference between speed and velocity involves

Answers

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c) more than 10 kW

Please show calculations!

Answers

The potential energy of each kg of water, before it falls, is

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(If you used 10 for gravity, it would come out to 15.3 kW)

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