You walk 45m west then 35m west

In an X-ray photoelectron experiment, a photon of wavelength 121 pm ejects an electron from the inner shell of an atom and it em

pentagon [3]

Answer:

binding energy will be $0.1633\times 10^{-15}J$

Explanation:

We have given wavelength of photon $\lambda =121pm=121\times 10^{-12}m$

Velocity of light $c=3\times 10^8m/sec$

Plank's constant $h=6.6\times 10^{-34}Js$

So energy of photon $E=\frac{hc}{\lambda }=\frac{6.6\times 10^{-34}\times 3\times 10^8}{121\times 10^{-12}}=1.636\times 10^{-15}J$

Mass of electron $m=9.1\times 10^{-31}kg$

Velocity of electron is given $v=56.9\times 10^6m/sec$

So kinetic energy of electron $KE=\frac{1}{2}mv^2=\frac{1}{2}\times 9.1\times 10^{-31}\times (56.9\times 10^6)^2=1.473\times 10^{-15}J$

So binding energy = plank's energy - kinetic energy

$=1.636\times 10^{-15}-1.473\times 10^{-15}=0.1633\times 10^{-15}J$

So binding energy will be $0.1633\times 10^{-15}J$

4 0

3 years ago

Two parallel plates, each of area 3.37 cm2, are separated by 5.40 mm. The space between the plates is filled with air. A voltage

baherus [9]

Answer:

1, 1583.33 V/m

2, 4.72*10^-12 C

3, 39.2*10^-11 C

Explanation:

1

E = V / d

E = 8.55 / 5.4*10^-3

E = 8.55 / 0.0054

E = 1583.33 V/m

2

Capacitance, C = (k * e0 * A) / d, where k = 1

A = area of capacitor, 3.37 cm² = 3.37*10^-4 m²

d = plate separation, 5.4 mm

e0 = Constant, 8.85*10^-12

Applying these, we have

C = (1 * 8.85*10^-12 * 3.37*10^-4) / 5.4*10^-3

C = 29.82*10^-16 / 0.0054

C = 5.52*10^-13 F

Since Q = CV, then

Q = 5.52*10^-13 * 8.55

Q = 4.72*10^-12 C

3

We are given that k = 83, so

Capacitance, C = (k * e0 * A) / d

C = (83 * 8.85*10^-12 * 3.37*10^-4) / 5.4*10^-3

C = 2.475*10^-13 / 0.0054

C = 4.58*10^-11 F

Q = CV

Q = 4.58*10^-11 * 8.55

Q = 39.2*10^-11 C

5 0

3 years ago

If a positively charged body is moved against an electric field it will gain?

Gnoma [55]

Answer:

positive charge

Explanation:

Electric charge is the physical property of matter that causes it to experience a force when placed in an electromagnetic field. There are two types of electric charge: positive and negative.

hope it helps :)

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5 0

4 years ago

Do ampere and volt measure the same thing or different things

nekit [7.7K]

AMPERE measures current
VOLT measures voltage

5 0

4 years ago

Read 2 more answers

How does this picture apply to Newtons 3rd law.Please make it well developed!!!Thanks!

Orlov [11]

Explanation for the given picture:

Initially, three principles of movement proposed by Sir Isaac Newton in 1686 "Principia Mathematica Philosophiae Naturalis". The third law says that every action (force) in nature has an equal but has opposite reaction.

In other words, when object A produces force on object B, then this object B also exerts the same but opposite forces on object A. Remember that forces get exerted on various objects. For example, if we put a wooden block in the floor, this block will create a force that should be equal to its mass, W = mg, which will work down.

The photo above clearly shows a person jumping off a tree on a wooden board, and therefore bouncing on the board because of the force exerted by the wooden board. Newton's third law is important if a person uses his power as weight (W = mg), and this in turn turns the person upside down! hence

Newtons 3rd law applies in above picture.

5 0

3 years ago