i need help with this question on circuits!!

Explanation:

it is not clear. I can't see w.

Answer:

the answer is 2.3. I just answered this question and got it right.

Explanation:

The phenomenon bending of a wave as it crosses from one medium to another is said to be refraction. The speeds of light in the water will be 2.25×10⁸ m/sec.

The phenomenon bending of a wave as it crosses from one medium to another is said to be refraction. The difference in density is the cause of the bending.

Refraction is a term that is used to describe the phenomenon of refraction."The change in direction of a wave traveling through one medium to another is known as refraction."

The following data are given in the problem;

C is the Speed of light in a vacuum =3×10⁸ m/sec.

n is an index of refraction for water = 1.333

v is the speed of light in the water=?

The index of refraction is the ratio of the speed of light in a vacuum to the speed of light in water. By the formula of the index of refraction.

[tex]n=\dfrac{c}{v}[/tex]

[tex]V=\dfrac{c}{n}[/tex]

[tex]V=\dfrac{3\times10^8}{1.333}[/tex]

[tex]V=2.25\times 10^8 m/s[/tex]

Hence the speed of light in the water will be 2.25×10⁸ m/sec.

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Answer:

launched the first man into space

was the first country to send a person to the moon

successfully landed å spacecraft on the moon

Answer:

B buoyant force (mass) = 600 - 400 = 200 g       (I)

upthrust is 200 g due to decrease in apparent body weight

(Note that g is being treated as force here when it is actually mass)

D = M / V     definition of density

since density of water is 1 (1 g / cm^3)

from (I) the equivalent volume of water is 200 cm^3 since the upthrust will equal the weight of the water displaced

Relative density of solid is 600 g / 200 g = 3     (weight of solid vs the weight of the water displaced

D = 3 g / cm^3       density of solit

Answer:

D. P=1.2 kw, T=6kwh

Explanation:

P = A × V

P = 120×10

= 1200 watts or 1.2 kw

T = Watts × hr

1000

= 1200 × 5

1000

= 6 kwh

[tex]\\ \rm\rightarrowtail T=2\pi\sqrt{\dfrac{l}{g}}[/tex]

[tex]\\ \rm\rightarrowtail T^2=4\pi^2\dfrac{l}{g}[/tex]

[tex]\\ \rm\rightarrowtail g=\dfrac{4\pi ^2\ell}{T^2}[/tex]

[tex]\\ \rm\rightarrowtail g=\left(\dfrac{2\pi\sqrt{l}}{T}\right)^2[/tex]

Answer:

This is a paradox — an inconsistency that often leads people to think that time travel cannot occur in our universe." A variation is known as the "grandfather paradox" — in which a time traveler kills their own grandfather, in the process preventing the time traveler's birth

Explanation:

hope this Wil help ....

In a circuit, if the resistors were decreased by a factor of 1,000, it is true that the current would increase by a factor of 1,000, according to Ohm's Law.

It is a law in electricity that posits that the voltage that goes through a conductor is directly proportional to the current.

One formula in Ohm's law is:

Voltage = Current x Resistance

If the resistance were to decrease by a factor of 1,000, the current would have to increase by a factor of 1,000 as well in order to give the same voltage.

Find out more on Ohm's law at https://brainly.com/question/14296509.

Answer:

Carbon Dioxide absorbs and re-emits the infrared radiation.

Answer:

If you consider systems as internal, external, or open then energy can only be exchanged between systems that are classified as -

(D) open

For instance if you want to classify the work done in lifting a bucket of water from a well, then this is an internal system as opposed to a system where you would have to consider the work done on the earth and its surrounding stars.

force = 100 N

⇒ 100 N.s = force * 1 s

⇒ force = 100/1

⇒ force = 100 N

Answer :-

Explanation :-

As per the provided information in the given question, we have been given that the Impulse of the Object is 100 Ns . It's Time is given as 1 sec . And, we have been asked to calculate the Force .

For calculating the Force , we will use the Formula :-

[tex] \bigstar \: \: \: \boxed {\sf { \: Force \: = \: \dfrac {Impulse}{Time} \: }} [/tex]

Therefore , by Substituting the given values in the above Formula :-

[tex] \dag \: \: \: \sf {Force \: = \: \dfrac {Impulse}{Time}} [/tex]

[tex] \Longrightarrow \: \: \: \sf {Force \: = \: \dfrac {100}{1}} [/tex]

[tex] \Longrightarrow \: \: \: \textbf {\textsf {Force \: = \: 100}} [/tex]

Hence :-

[tex] \underline {\rule {180pt}{4pt}} [/tex]

Answer:

a. Particles are in constant motion.

Answer:

2 [tex]m/s^{2}[/tex]

Explanation:

acceleration = (final-initial velocity) / time

                     = (10-0)/5

                     =2

Answer: It would be; A/B

Answer:

40n

Explanation:

10×25 all over 100 ,25 into hundred 4 times 10×4 =40n

Answer:

A

Explanation:

i just took the test

Answer:

A - Fusion !

Explanation:

Person above me is correct, I just took "The Impact of Human Activity" Unit Test.

Answer:

The potential energy gained is 1500m joule.

Explanation:

Hope this helps!

Answer:

Answer: He 1500m joule amount of  gravitational potential energy

Explanation:

Good Luck

hope it helps

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The expression for the block's centripetal acceleration is derived as ω²r or v²/r.

The centripetal acceleration of an object is the inward or radial acceleration of an object moving in a circular path.

The expression for the block's centripetal acceleration is derived as follows;

ω = dθ/dt

where;

ac = ω²r

where;

Also, ω = v/r

ac = (v/r)²r

ac = v²/r

Thus, the expression for the block's centripetal acceleration is derived as ω²r or v²/r.

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Answer:

weight-44.1 kg- mass-4.5kg gravity-9.8 formula-(see explanation)

Explanation:

force/weight on earth is = mass x gravitational field strength

Volume:-

[tex]\\ \sf\rightarrowtail \dfrac{4}{3}\pi r^3[/tex]

[tex]\\ \sf\rightarrowtail \dfrac{4}{3}\pi (0.18)^3[/tex]

[tex]\\ \sf\rightarrowtail \dfrac{4}{3}\pi (0.005832)[/tex]

[tex]\\ \sf\rightarrowtail 0.024m^3[/tex]

Density:-

[tex]\\ \sf\rightarrowtail \dfrac{Mass}{Volume}[/tex]

[tex]\\ \sf\rightarrowtail \dfrac{190}{0.024}[/tex]

[tex]\\ \sf\rightarrowtail 7916.67kg/m^3[/tex]

The prompt seeks to explain how Philips uses digital governance in its sourcing approach or procurement.

Phillips was able to achieve this by hosting the "Supplier Development Group".

Then, various departments within Phillips met with the supplier's Group to find out how more raw materials could be gotten in the most environmentally friendly way possible.

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The new digital governance and sourcing approach is described as strategy to accelerate implementation.

Digital tools along with social media have empowered people to have access to infinite information and make connections globally. All the citizens or individuals are using digital based technologies to get hold of  benefits caused by using them.

Sourcing approach is used in supply chain management that gathers the information and used in an organization for purchasing power. This finds the best possible values in the marketplace. This strategy helps to attain business goals.

Learn more about Digital Governance.

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Answer:

9.82 m/s²

Explanation:

        ⇒ T = 2π√(L/g) [← Important]

Original Time Period [To calculate length of the string]

Calculating value of g' (new acceleration)

Hope it helped~

Answer:

amplitude

Explanation:

When we increase the volume of a sound, the amplitude of the wave is increased. The frequency of a wave is related to its pitch. If the pitch is high, then the frequency of the wave is high. This means that the wave will looked squashed on an oscilloscope trace.

Answer:

No

Explanation:

I dont know please help

Answer:

d (density) = M / V

V = M / d = 500 kg / (11400 kg / m^2 = .044 m^3

Answer: It is minimising

For minimizing, the error is calculated by finding the sum of the squared distance between actual and predicted values.

The difference between the measured and analysis of the financial statements might well be defined as an error. For instance, if the two operators use the same complete and precise tool.

We have:

For ____________, the error is calculated by finding the sum of the squared distance between actual and predicted values

The correct answer is minimizing because according to the information provided in the problem. The sum of squared distance between actual and anticipated values is calculated to "minimize" the mistake.

This is one of the most significant aspects of statistics, and it involves mathematical computations involving error calculations for various values.

Thus, for minimizing, the error is calculated by finding the sum of the squared distance between actual and predicted values.

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The work done by the man pushing the car over the given distance is 1000J.

Given the data in the question;

Work done; [tex]W = \ ?[/tex]

Work done is simply defined as the energy transfer that takes place when an object is either pushed or pulled over a certain distance by an external force. It is expressed as;

[tex]Work\ done = f * d[/tex]

Where f is force applied and d is distance travelled.

To determine the work done by the man, we first solve for the force applied F.

From Newton's Second Law; [tex]Force \ F = m * a[/tex]

We substitute our given values into the expression

[tex]F = m * a \\\\F = 200kg * 0.5m/s^2\\\\F = 100kg.m/s^2[/tex]

Next we substitute our values into the expression of work done above.

[tex]Work \ done = f * d\\\\Work \ done = 100kg.m/s^2 * 10m\\\\Work \ done = 1000kgm^2/s^2\\\\Work \ done = 1000J[/tex]

Therefore, the work done by the man pushing the car over the given distance is 1000J.

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Answer:

Kelvin scale degrees

Explanation: The Kelvin scale starts at 0°k, the lowest possible temperature, as at this point, all movement stops at an atomical level.

Answer:

Kelvin

Explanation:

Kelvin is the only temperature scale that when it hits 0, the universe would be frozen. it is the lowest possible temperature.