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Iteru [2.4K]
3 years ago
14

In a series circuit with three bulbs,

Physics
1 answer:
elena-14-01-66 [18.8K]3 years ago
8 0

In a series circuit, there is only one path for current to take. 
If more bulbs are added, then the same current loses more energy,
making heat and light on its way through more bulbs, so the ones that
were there before become dimmer.

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A friend wants to know whether her wedding ring is made of pure
masha68 [24]

Answer:

mixture of gold and silver

8 0
2 years ago
3.
ratelena [41]

Answer:

1.84 kJ  (kilojoules)

Explanation:

A specific heat of 0.46 J/g Cº means that it takes 0.46 Joules of energy to raise the temperature of 1 gram of iron by 1 Cº.

If we want to heat 50 g of iron from 20° C to 100° C, we can make the following calculation:

Heat = (specific heat)*(mass)*(temp change)

Heat = (0.46 J/g Cº)*(50g)*(100° C -  20° C)

[Note how the units cancel to yield just Joules]

Heat = 1840 Joules, or 1.84 kJ

[Note that the number is positive:  Energy is added to the system.  If we used cold iron to cool 50g of 100° C water, the temperature change would be (Final - Initial) or (20° C - 100° C).  The number is -1.84 kJ:  the negative means heat was removed from the system (the iron).

8 0
2 years ago
What is the scientific definition of energy that relates it to work? the ability to use an applied force to make an object move
Musya8 [376]

the ability to use an applied force to make an object move

Explanation:

The scientific definition of energy that relates it to work is the ability to use an applied force to make an object move.

  • Energy is defined scientifically as the ability to do work.
  • Work done is the force applied to make an object move in a specific direction.

  Work done = Force x distance

  • Since energy is the ability to do work, we are are correct to say energy is also the ability to use an applied force to make an object move.

learn more:

Work done brainly.com/question/9100769

#learnwithBrainly

3 0
3 years ago
You have a device that takes temperature measurements and runs off of solar power. How often it is programmed to take a measurem
Tcecarenko [31]

Answer:

In the Equator:

As far as the temperature is concerned equator is more or less the same throughout the year, however, there are some fluctuations also, I will set this device in March and September because, in this month, the Sun is exactly over the equator and I would be able to get the more results in this month.

In Antarctic:

As far as the climatic conditions of Antarctic are concerned, it is all the same while it fluctuates in December because the Sun is very much close to Antarctic that's why I will choose this month.

Explanation:

8 0
3 years ago
Suppose there are 100,000 signaling societies in our galaxy. What is the average distance between civilizations, assuming that c
Leokris [45]

Answer:

The average distance is 999.936 light years.

Solution:

As per the question:

Ours is the Milky Way Galaxy with the diameter:

D = 1,00,000 ly

Radius, R = \frac{D}{2} = \frac{1,00,000}{2} = 50,000\ ly

Now,

A = \pi R^{2} = 50,000^{2}\pi = 7.8539\times 10^{9}\ ly^{2}

The area to each civilization, A' is:

A' = \frac{A}{10000} = \frac{7.8539\times 10^{9}}{10000} = 7.8539\times 10^{5}\ ly^{2}

The radius of each area of civilization, r:

A' = \pi r^{2}

r = \sqrt{\frac{A'}{\pi}}

r = \sqrt{\frac{7.8539\times 10^{5}}{\pi}} = 499.968\ ly

Thus the average separation distance between civilizations is given as:

2r = 2\times 499.968 = 999.936\ ly

8 0
3 years ago
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