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3 years ago

Is there a link between number of bulbs and current drawn from the power pack?

Physics

1 answer:

Maurinko [17]3 years ago

5 0

Answer:

Yes, there a link between number of bulbs and current drawn from the power pack.

Explanation:

In an Electrical circuit, we have resistors present in that circuit. These resistors can be connected in two ways.

a) Series connection

b) Parallel connection

There is a link or a relationship between number of bulbs and the current drawn from the power pack. This is because the number of bulbs is equivalent to or equal to the number of resistors.

Hence,

a) In a series connection, the link or relationship between the number of bulbs(resistors) is as the number of light bulbs increases, the current in the power pack (circuit) decreases.

b) In a parallel connection, the link or relationship between the number of bulbs(resistors) is as the number of light bulbs increases, the current in the power pack (circuit) increases.

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What is the oxidation number of the element Se

maria [59]

Answer:

The oxidation number of a monatomic (composed of one atom) ion is the same as the charge of the ion. For example, the oxidation numbers of K+, Se2−, and Au3+ are +1, -2, and +3, respectively. The oxidation number of oxygen in most compounds is −2.

Explanation:

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2 years ago

The _____ of a wave is the number of wave cycles per second. this quantity is given the symbol ν and has units of s–1 or _____.

Fynjy0 [20]

The frequency of a wave is the number of wave cycles per second. this quantity is given the symbol ν and has units of s^–1 or hertz.

What is a wave ?

A wave is a dynamic disturbance of one or more quantities that propagates through time. When waves oscillate frequently around an equilibrium value at a certain frequency, they are said to be periodic.

What is a wave cycle ?

The wavelength is the measured distance in meters between two waves' peaks or troughs, which is referred to as a wave cycle. It's crucial to remember that the distance from peak to peak equals the distance from trough to trough. The length of time it takes a wave to complete one cycle is known as the wave's period.

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8 0

1 year ago

A car traveling east increases its velocity from 4 m/s to 19 m/s in 5 s. What is the acceleration of the car?

Virty [35]

It’s going 3m/s. If we have 5 seconds to work with then we can find the acceleration by adding speed and how fast it going every second. So like the 7-10-13-16-19 so we go 3m/s faster ever second

3 0

2 years ago

A Rac variant, in which the residue at position 61 was replaced with an alanine (Rac61A), was synthesized. Wild-type Rac and Rac

ludmilkaskok [199]

Answer:

Ammonia, $(NH_{3})$

Explanation:

If a Rac variant, in which the residue at position 61 was replaced with an alanine (Rac-61A), was synthesized. Also, Wild-type Rac and Rac-61A were incubated separately with VopC.

In order to obtain data to support that VopC modifies Rac at residue 61, the samples should be analyzed for the presence of Ammonia ( $NH_{3}[\tex]) compound.In chemistry, the Vanadyl Phthalocyanine (VopC) comprises of a catalytic domain that activates host cells GTPase Rac irreversibly, through the deamide side chain of the residue existing at position 61.Also, we know that a deamidation reaction gives off Ammonia, [tex](NH_{3})$ and as such when ammonia is present in the sample containing Wild-type Rac but not in Rac-61A, this simply proves or provide the data to support that VopC modifies Rac at residue 61.

<em>Additionally, deamidation can be defined as the chemical conversion (hydrolysis) of an amide functional group such as glutamine, asparagine, in a polypeptide to another functional group such as glutamic acid or isoaspartic acid respectively by treating it with a strong acid (deamidate, transamidase). </em>

3 0

2 years ago

A person hums in a well (closed) and finds strong consecutive resonance frequencies of 60 Hz, 100 Hz, and 140Hz...

I am Lyosha [343]

Answer:

fundamental frequency= 20Hz

length= 4.3m

Explanation:

resonating frequencies = 60 Hz,100 Hz,140 Hz

speed of sound =344 m/s

as well behaves as organ pipe with are end closed

only odd harmonics are allowed

, so the vibration will corresponds to n=1,3,5,7....

(2n−1) λ

/4 = l (∵λ

= V/f)

(2n-1) V / 4f = l

$\frac{(2m-1)344}{4*60} = \frac{(2n-1)344}{4*100} = \frac{(2p-1)344}{4*140}$

(2m-1)/6= (2n-1)/10= (2p-1)/14 =A

The given frequencies happen to be 3rd,5th & 7th harmonics of the fundamental frequency n=20Hz.

Therefore, The fundamental frequency will be 20 Hz because 60 Hz is corresponding 3rd harmonic

In order to find length,

(2n-1) V / 4f = l

$\frac{1*344}{4 20}$ = 4.3m

therefore, the well is 4.3m deep

8 0

2 years ago