1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
alina1380 [7]
3 years ago
15

what is the electrical potential at the surface of gold nucleus? The radius of a gold atom is 6.6*10​

Physics
1 answer:
MaRussiya [10]3 years ago
3 0

Complete question is;

What is the electrical potential at the surface of gold nucleus? The radius of a gold atom is 6.6 × 10​^(-5) m and atomic number z = 79.

Answer:

172.36 × 10^(-5) V

Explanation:

We are given;

Radius; r = 6.6 × 10^(-5) m

Atomic number; Z = 79

Formula for Electric potential here is;

V = kZe/r

Where;

e is charge on proton = 1.6 × 10^(-19) C

k has a constant value of 9 × 10^(9) N⋅m²/C²,

​Thus;

V = (79 × 1.6 × 10^(-19) × 9 × 10^(9))/(6.6 × 10^(-5))

V = 172.36 × 10^(-5) V

You might be interested in
The atmosphere of Neptune and Uranus have a blue color because of which gas?
AURORKA [14]
The gas that gives Neptune and Uranus its amazing blue color is methane 
7 0
3 years ago
Read 2 more answers
A block is attached to a horizontal spring and oscillates back and forth on a frictionless horizontal surface at a frequency of
Nastasia [14]

Answer:

Amplitude = 0.058m

Frequency = 6.25Hz

Explanation:

Given

Amplitude (A) = 8.26 x 10-2 m

Frequency (f) = 4.42Hz

Conversation of energy before split

½mv² = ½KA²

Make A the subject of formula

A = v\sqrt{\frac{m}{k} }

Conversation of energy after split

½(m/2)V'² = ½(m/2)V² = ½KA'²

½(m/2)V² = ½KA'²

Make A the subject of formula

First divide both sides by ½

(m/2)V² = KA'²

Divide both sides by K

\frac{m}{2K}V² = A'²

v\sqrt{\frac{m}{2k} } = A'

Substitute v\sqrt{\frac{m}{k} } for A in the above equation

A' = A/√2

A' = 8.26 x 10^-2/√2

A' = 0.05840702012600882

Amplitude after split = 0.058 (Approximated)

Frequency (f') = f√2

f' = 4.42√2

f' = 6.25082394568908011

Frequency after split = 6.25Hz (approximated)

8 0
3 years ago
Obtain the temp. at which the reading of Fahrenheit is double of that in Celsius scale.​
SVEN [57.7K]

Answer:

320 degrees fahrenheit and 160 degrees celcius

Explanation:

there's a formula that i definately don't remember but it exists

7 0
3 years ago
A little girl is walking, swinging her arms through a 20° angle every 0.25 s. The length of each arm is 30 cm. Assuming that the
rodikova [14]

Answer:

The force will be "9.8\times 10^{-3} \ N".

Explanation:

The given values are:

Mass,

m = 1 gram

Angle,

Ф = 20°

As we know,

⇒ F=mg

On substituting the given values in the above expression, we get

⇒     =(1.0\times 10^{-3})(9.8)

⇒     =9.8\times 10^{-3} \ N

3 0
2 years ago
A generic solid, X, has a molar mass of 60.2 g/mol. In a constant‑pressure calorimeter, 34.1 g of X is dissolved in 283 g of wat
forsale [732]

Answer: 10.07KJ/mol

Explanation:

See attachment

4 0
3 years ago
Other questions:
  • A wave on the ocean has a wavelength of 200 m, the wave is a deep-water wave __________. only if the water is deeper than 200 m
    9·1 answer
  • The following statement is FALSE. You must replace the capitiized word with a different word that will make this statement corre
    7·1 answer
  • Diffuse reflection occurs when the size of surface irregularities is
    8·1 answer
  • A transformer has a 240 V primary and a 60 V secondary. With a 5 ohm load connected, what is the primary current?
    13·1 answer
  • The outer layer of bone _____.
    14·1 answer
  • Two sheets of polarizing material are placed such that their polarizing axes are 90° to each other and no light passes through t
    15·1 answer
  • Write a conclusion to this lab in which you discuss when a person on a roller coaster ride would have sensations of weightlessne
    9·1 answer
  • This is for 6th grade Science -Geology - weather and climate.
    6·1 answer
  • A capacitor has plates of area 1.64 * 10 ^ - 3 * m ^ 2 . To create a capacitance of 2.38 * 10 ^ - 9 * F , how far apart should t
    9·1 answer
  • If you increase the frequency of a wave by 5x whats it’s period?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!