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
Lana71 [14]
3 years ago
14

Buoyant force acts in the opposite direction as the force of

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

Buoyant force acts in the opposite direction as the force of

Gravity

You might be interested in
Neutral hydrogen can be modeled as a positive point charge +1.6×10^−19C surrounded by a distribution of negative charge with vol
Archy [21]

Answer:

a) 1.082 × 10⁻¹⁹C  ( e = 1.6 × 10⁻¹⁹C)  

b) 3.466 × 10¹¹ N/C

Explanation:

a)

p(r) = -A exp ( - 2r/a₀)

Q = ₀∫^∞ ₀∫^π ₀∫^2xπ p(r)dV  =  -A  ₀∫^∞ ₀∫^π ₀∫^2π   exp ( - 2r/a₀)r² sinθdrdθd∅

Q = -4πA ₀∫^∞ exp ( - 2r/a₀)r²dr = -e

now using integration by parts;

A = e / πa₀³

p(r) =  - (e / πa₀³) exp (-2r/a₀)

Now Net charge inside a sphere of radius a₀ i.e Qnet is;

= e - (e / πa₀³)  ₀∫^a₀ ₀∫^π ₀∫^2π  r² exp (-2r/a₀)dr

= e - e + 5e exp (-2) = 1.082 × 10⁻¹⁹C  ( e = 1.6 × 10⁻¹⁹C)  

b)

Using Gauss's law,

E × 4πa₀ ² = Qnet / ∈₀

E = 4πa₀ ² × Qnet × 1/a₀²

E = 3.466 × 10¹¹ N/C

4 0
3 years ago
Convection currents in the Earth's mantle cause plate movement which can cause all except
Dominik [7]
The answer is B. hurricanes 
5 0
3 years ago
Read 2 more answers
A 150 kg safe on frictionless casters is being raised at 1.20m to the bed of a truck using planks 4m long. The force needed to p
Vesnalui [34]
The only thing you need to know in order to solve this task is that <span>plank length (which is force x), should equal the increase in potential energy, so what we have now : (mass)* g * (height).
It has to look like that:  </span>
<span>F * 3.0 = 150 x 9.81 x 1.20 
Then solve for F, the result should be in newtones = 588N

Do hope it makes sense.</span>
3 0
2 years ago
At the time of the founding of the country, most Americans worked as
STatiana [176]

Answer:

Farmers

Explanation:

At the time of founding our country most soldiers in the revolutionary war were farmers who were inexperienced.

4 0
2 years ago
Read 2 more answers
What describes the particles in a liquid
Gnoma [55]

Answer:

liquid a particles slides past pother

Explanation:

mark brainliest :))

8 0
3 years ago
Other questions:
  • Suppose an element had an atomic number of 52. How many protons would that element have?
    7·2 answers
  • An object is held at an unknown height above Earth’s surface, where the acceleration due to gravity of the object is considered
    6·1 answer
  • Which system of measurement does the u.s. use? the metric system the si system the english system us customary system
    9·2 answers
  • Luz, who is skydiving, is traveling at terminal velocity with her body parallel to the ground. She then changes her body positio
    13·1 answer
  • 50 BP
    7·1 answer
  • A tuning fork is used to produce sound waves with a frequency of 514 hertz. The waves travel through the air at 343 m/s. What is
    5·1 answer
  • THE VELOCITY RATIO OF A SINGLE MOVABLE PULLEY IS TWO​
    14·1 answer
  • Best Answer gets Brainiest
    5·1 answer
  • In handball, once a player possesses the ball,
    7·1 answer
  • PHYSICS HELP PLS
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!