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4 years ago

Is there an atom within an atom?

1 answer:

6 0

No. An atom is made up of 3 kinds of particles, protons, neutrons, and electrons. Protons and neutrons make up the center of the atom.

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Explain Resistor in parallel and series.

patriot [66]

$\sf\huge\underline\blue{Resistor:-}$

$\rightarrow$ A resistor is a passive two-terminal electrical component that implements electrical resistance as a circuit element.

$\rightarrow$ Resistors reduce the current flow and lower voltage levels within circuits.

$\sf\large\underline\purple{Resistors \:in\: Series:-}$

$\rightarrow$ A circuit is said to be connected in series when the same amount of current flows through the resistors. In such circuits, the voltage across each resistor is different.

$\rightarrow$ In a series connection, if any resistor is broken or a fault occurs, then the entire circuit is turned off. The construction of a series circuit is simpler compared to a parallel circuit.

$\rightarrow$ For the above circuit(attached image-1), the total resistance is given as:

$\sf{R_{total}\: = \:R1 + R2 + ….. + Rn}$

The total resistance of the system is just the total of individual resistances.

$\sf\large\underline\purple{Resistors \:in\: Parallel:-}$

$\rightarrow$ A circuit is said to be connected in parallel when the voltage is the same across the resistors. In such circuits, the current is branched out and recombines when branches meet at a common point.

$\rightarrow$ A resistor or any other component can be connected or disconnected easily without affecting other elements in a parallel circuit.

$\rightarrow$ The figure(attached image -2) above shows ‘n’ number of resistors connected in parallel. The following relation gives the total resistance here

$\sf{\frac{1}{R_{total}}\: = \:\frac{1}{R1} + \frac{1}{R2} + ….. + \frac{1}{Rn}}$

$\rightarrow$ The sum of reciprocals of resistance of an individual resistor is the total reciprocal resistance of the system.

_______________________________

Hope it helps you:)

6 0

2 years ago

Read 2 more answers

A car has a mass of 850 kg. By pushing on the car, Evan increases its speed

Dmitry_Shevchenko [17]

Answer:

I=1,2•10³ kg•m/s

Explanation:

v¹=3.5m/s

vf=5m/s

v=5-3.5=1.5m/s

I=p

I=mv=850•1.5=1275 kg•m/s=1,2•10³ kg•m/s

8 0

4 years ago

Read 2 more answers

A ray of light contains two colors: red with wavelength of 660 nm and blue with wavelength 470 nm. The ray passes through two na

densk [106]

Answer:

The distance on the screen between the first-order bright fringes for each wavelength is 3.17 mm.

Explanation:

Given that,

Wavelength of red = 660 nm

Wavelength of blue = 470 nm

Separated d= 0.30 mm

Distance between screen and slits D= 5.0 m

We need to calculate the distance for red wavelength

Using formula for distance

$y=\dfrac{\lambda D}{d}$

Where, D = distance between screen and slits

d = separation of slits

Put the value into the formula

$y=\dfrac{660\times10^{-9}\times5.0}{0.30\times10^{-3}}$

$y=11\ mm$

For blue wavelength,

Put the value into the formula again

$y'=\dfrac{470\times10^{-9}\times5.0}{0.30\times10^{-3}}$

$y'=7.83\ mm$

We need to calculate the distance on the screen between the first-order bright fringes for each wavelength

Using formula for distance

$\Delta y=y-y'$

$\Delta y=11-7.83$

$\Delta y=3.17\ mm$

Hence, The distance on the screen between the first-order bright fringes for each wavelength is 3.17 mm.

4 0

4 years ago

David delivers meals to elderly people once a week. He uses a cart to move the meals. The cart has four smooth wheels. Which typ

Naya [18.7K]

Answer: rolling friction

Explanation: I think it is the answer

3 0

3 years ago

Name each planet in the solar system

satela [25.4K]

Mercury is the closest planet to the sun.

Venus is second planet. Venus has no moons.

Earth is the third planet. This is the only planet that is known to inhabit life.

Mars is the fourth planet. Mars is called the "red planet" and has two moons.

Jupiter is the fifth planet in our solar system. Jupiter is the biggest planet in our solar system.

Saturn is the sixth planet. It has 31 moons.

Uranus is the seventh planet. It is a greenish-blue planet.

Neptune is the eight planet. On Neptune, temperatures stay colder than -350 Fahrenhiet.

Pluto is no longer a planet, but if you weighed 100 pounds on Earth, then you would weight 7-8 pounds on Pluto. But your mass would be the same.

5 0

4 years ago