2 years ago

I’ll give brainliest if it’s correct ;-;z

Physics

1 answer:

BlackZzzverrR [31]2 years ago

6 0

Explanation:

what is the question? could you pls provide it

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If you put 120 volts of electricity through a pickle, the pickle will smoke and start glowing orange-yellow. The light is emitte

Alona [7]

Answer:

2.11eV

Explanation:

We know that speed of light is it's wavelength times frequency.

$\therefore f=v/\lambda\\=(3\times10^8m/s)/(589mm\times1m/1\times 10^9nm)\\=5.09\times10^1^4s^-1 \ or \ 5.09\times10^1^4Hz$

Planck's constant is $6.626\times 10^3^4Js$

The energy gap is calculated by multyplying the light's frequency by planck's constant:

$E_c=5.09\times10^1^4s^-^1\times 6.626\times10^-^3^4Js\\\\=3.37\times 10^-^1^9J \ \ \ \ \ \ #1eV=1.06\times 10^-^1^9J\\\\=2.11eV$

Hence, the energy gap is 2.11eV

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3 years ago

What affects how an object falls toward earth?

ioda

1. Air resistance (therefore, the air density, shape (aerodynamic or not), and surface area affected
2. The gravitational acceleration constant (g = 9.8 m/s^2 on Earth)

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"NEED HELP FAST" Which of the following is a vector quantity?

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Answer:

the answer is b. b velocity. remember v=v

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Suppose a train engine is pulling ten cars. The last car becomes separated from the train. What happens to the motion of the res

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One of the dangers of tornados and hurricanes is the rapid drop in air pressurethat is associated with such storms. Assume that

Oksi-84 [34.3K]

Answer:

The net outward force is exerted on a square window of the house is $4.5930\times10^{4}\ N$ .

Explanation:

Given that,

Pressure = 1.02 atm

External air pressure = 0.910 atm

Distance = 2.03 m

We need to calculate the net outward force

Using formula of force

$F= PA$

Where, P = pressure

F = force

A = area

Put the value into the formula

$F=(1.02-0.910)\times101325\times(2.03)^2$

$F=4.5930\times10^{4}\ N$

Hence, The net outward force is exerted on a square window of the house is $4.5930\times10^{4}\ N$ .

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3 years ago