Describe two types of volcanic fields please help

1 answer:

7 0

A stratovolcano is a conical volcano consisting of layers of solid lava flows mixed with layers of other rock.

A cinder cone volcano doesn’t have any horizontal layers, and is instead a steep conical hill of tephra that accumulates around and downwind from the vent.

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A light source of wavelength \lambdaλ illuminates a metal with a work function of \text{BE} = 2.00 ~\text{eV}BE=2.00 eV and ejec

dsp73

Answer:

1 eV

Explanation:

Given:

Work function, ∅ = 2.00 eV

Kinetic energy of the ejected of the electron, K.E = 4.0 eV

Now,

using the photoelectric equation , we have

Energy of the photon (E) = ∅ + K.E

also,

E = hc/λ

where, h is plank's constant

c is the speed of the light

λ is the wavelength

thus, we have

hc/λ = 2 + 4 = 6 eV

Energy of photon = 6eV

Now,

for the second case

λ' = 2λ

when Wavelength is doubled , E is halved

thus,

E' = hc/λ'

E' = hc/2λ

E' = E/2 = 6/2 = 3 eV

also,

E' = ∅ + KE '

thus on substituting the values,

3 = 2 + KE'

KE' = 1 eV

Hence, the maximum kinetic energy for the second case is 1 eV

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Can an electron be found in an exact spot within an atom

jolli1 [7]

No, it is impossible to determine the exact location of an electron. This is because electrons don't have a definite position, and direction of motion, at the same time and its movements are unpredictable

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3 years ago

A person opens a door by applying a 10-N force perpendicular to it at a distance 0.90m from the hinges.

quester [9]

You faded out there before asking your question.
Here's some info that might be of interest:

Torque = (force) x (distance from the pivot) = (10 n) x (0.9 m) = 9 newton-meters

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An experimenter using a gas thermometer found the pressure at the triple point of water (0.01°C) to be 4.80 × 10⁴ Pa and the pre

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Answer:

$T = -282.33^o C$