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
densk [106]
3 years ago
9

Consider an electron and a proton separated by a distance of 4.5 nm. (a) what is the magnitude of the gravitational force betwee

n them? 5.1128e-20 incorrect: your answer is incorrect. n (b) what is the magnitude of the electric force between them?
Physics
1 answer:
Dmitry_Shevchenko [17]3 years ago
6 0
A.) For letter a, we use the law of universal gravitation using the constant G = 6.674×10−<span>11 m3</span>⋅kg−1⋅s−<span>2

Grav. F = G*m1*m2*(1/d^2)

m1 is mass of electron = </span>9.11 × 10-31<span> kg
m2 is mass of proton = </span>1.67 × 10<span>-27 kg
d = 4.5 nm = 4.5 x 10^-9 m

Grav F = 5.01 x 10^-51 N

b.) </span>For letter b, we use the Coulomb's using the constant k = 9×10^9 N

Electric force = k*Q1*Q2*(1/d^2)
Q1 is charge of electron = -1.6 × 10-19 C
Q2 is charge of proton = +1.6 × 10-19 C

Electric force = 1.14 x 10^-11 N
You might be interested in
ভিতে ২০২০ শিকাৰৰে পুনর্বিন্যাসকৃত পাঠ্যসূচি জিভে জ্যাসাইনমেন্ট নিতে চাজ ওয়েন সিত
AURORKA [14]

harjot singh answer hai bro

5 0
3 years ago
1.
rusak2 [61]

Answer:

9.6

Explanation:

to convert km to miles multiply by 1.609

7 0
4 years ago
I'm trying to find the potential energy of a planet using formula G M(sun) x m(planet) / r. I have given G - newton's graviation
ludmilkaskok [199]

Answer:

-5.39\times10^{33} J

Explanation:

Potential energy =

-\frac{GMm}{r}\\=-\frac{6.67\times10^{-11}\times1.99\times10^{30}\times5.97\times10^{24}}{147/1\times10^{9}}\\=-5.39\times10^{33} J

7 0
2 years ago
G Railroad tracks are made from segments L = 79 m long at T = 20° C. When the tracks are laid, the engineers leave gaps of width
Andreyy89

Answer:

l=L\alpha(T_c-T)

Explanation:

L = Initial length of segment = 79 m

T = Normal temperature = 20^{\circ}\text{C}

l = Width to be left for expansion

\alpha = Coefficient of linear expansion of the material = 12\times 10^{-6}^{\circ}\text{C}^{-1}

T_c = Maximum temperature = 39.5^{\circ}\text{C}

\Delta T = Change in temperature = T_c-T

The expression of linear expansion is given by

l=L\alpha\DeltaT\\\Rightarrow l=L\alpha(T_c-T)

The expression for the minimum gap distance l the engineers must leave for a track rated at temperature T_c is l=L\alpha(T_c-T)

8 0
3 years ago
FILL IN THE BLANK. immediately following the arrival of the stimulus at a skeletal muscle cell there is a short period called th
Marrrta [24]

Immediately following the arrival of the stimulus at a skeletal muscle cell, there is a short period called the latent period during which the events of excitation-contraction coupling occur.

This process is a connection between transduction in the sarcolemma and the initiation of muscle contraction. Sarcolemma is nothing but the cell membrane of skeletal muscle.

A single muscle twitch has a latent period, a contraction phase when tension increases and a relaxation phase when tension decreases.

The period of incubation, the interval preceding exposure to a pathogen toxin or radiation, and when effects occur. Muscle contracting, the time between a nerve stimulus and muscle contraction.

To know more about muscles:

brainly.com/question/13753345

#SPJ4

6 0
1 year ago
Other questions:
  • Lisa has three classes that each last 50 minutes qhat ia the total nuber of minutes of minutes of the three classe?
    7·2 answers
  • Students were asked to design an experiment to determine what affects the period of a pendulum. Which of the following should be
    9·1 answer
  • Voyager is about 141 AU from earth. What is Voyager’s distance from earth in light years?
    8·1 answer
  • Two identical 1000-kg cars skid off the highway: car A hits a side rail and slows from 30 m/s to a complete stop in 0.1 seconds,
    9·1 answer
  • Sphere a has a charge of -1.6*10^-6 C and sphere B has a charge of 1*10^-6 C. If they’re touched then separated, what will the c
    14·1 answer
  • A man with mass m1 = 53.0 kg stands at the left end of a uniform boat with mass m2 = 172.0 kg and a length L = 2.5 m. Let the or
    13·1 answer
  • Why are satellites placed into orbit at least 150 km above Earth’s surface?
    13·2 answers
  • Greatest to least order
    12·1 answer
  • 2. Which of the following describes the effort arm?
    7·2 answers
  • Please someone do this <br>please ​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!