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]
2 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]2 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
Two asteroids are 75000 m apart one has a mass of 8 x 10^7 kg if the force of gravity between them is 1.14 what is the mass of t
vaieri [72.5K]
I’m going to say B

I hope this helped
4 0
2 years ago
Read 2 more answers
If a reaction starts with 30 grams how many should it end with ?
zysi [14]

30grams

Explanation:

If a reaction starts with 30grams then the reaction should end with 30grams.

This in conformity with the law of conservation of mass.

  • The law states that "in an isolated system, mass is neither created nor destroyed during chemical transformation".
  • Mass is the quantity of matter contained in a substance.
  • In chemical reactions, the mass of reactants must always be the same with the mass of the product baring any loss.
  • In an isolated system, there is no exchange of energy and mass.
  • Chemical systems are usually treated as isolated systems in which mass is conserved.

Learn more:

Chemical laws brainly.com/question/5896850

#learnwithBrainly

4 0
3 years ago
An 88.0 kg passenger is inside a 1450.0 kg elevator that rises 30.0 m in exactly 1.0 minutes. How much power is needed for the e
OleMash [197]

Answer:

Explanation:

6 0
3 years ago
To a nighttime observer on Earth, how many degrees do the stars appear to move around Polaris in 3 hours?
STatiana [176]
<span>The correct answer is 45 degrees. 360 degrees is 24 hours, because it takes a whole day for the earth to turn in one whole circle. So, to find how many degrees the stars seem to move per hour, simply divide the total number of degrees by the total number of hours in a day: 360/24 = 15. Since the question is asking how much the stars appear to move in 3 hours, now multiply the number of degrees per hour times 3: 15 x 3 = 45. </span>
5 0
3 years ago
We can model the motion of a bumblebee's wing as simple harmonic motion. A bee beats its wings 250 times per second, and the win
zlopas [31]

Answer:

The amplitude of the wing tip's motion is 1.6 mm.

Explanation:

Given that,

Beat = 250 /s

Speed = 2.5 m/s

We need to calculate the amplitude of the wing tip's motion

Using the equation for the maximum velocity

v_{max}=2\pi f A

A=\dfrac{v}{2\pi f}

Where,

v = speed

f = frequency

A = amplitude

Put the value into the formula

A=\dfrac{2.5}{2\pi\times250}

A=0.00159 = 1.59\times10^{-3}\ m

A=1.6\ mm

Hence, The amplitude of the wing tip's motion is 1.6 mm.

3 0
3 years ago
Read 2 more answers
Other questions:
  • Buffalo, New York, and Raleigh, NC, lie approximately on the same meridian. Buffalo has a latitude of 42.9° N, and Raleigh has a
    11·1 answer
  • Which of the following is the best definition of a closed system?
    12·1 answer
  • Wire sizes are often reported using the AWG (American Wire Gauge) system in which smaller diameter wires are said to be of highe
    14·2 answers
  • What do we call the side of the Earth that faces the sun?
    14·1 answer
  • A lady bug is sitting on the bottom of a can while you twirl it overhead on a string that is 65.0
    13·1 answer
  • A skydiver jumps from an airplane and falls freely for 5 seconds. If the sky diver's velocity increases by 49 m/s during that ti
    8·2 answers
  • One difference between a hypothesis and a theory is that a hypothesis
    9·1 answer
  • 1.25 is the closest to 1.04 or not I want to answer please. I think it's true, but I want to prove it scientifically, please.
    6·1 answer
  • How is energy transferred and transformed? and examples with full explanation.
    7·1 answer
  • The earliest stage of a star’s life before it begins to undergo fusion is known as:
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!