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
Nat2105 [25]
3 years ago
15

A physicist found that a force of 0.72N was measured between two charged sphere. The distance between the sphere was 0.90 m. Cal

culate the force between the two sphere when the distance was decreased to 0.50 m.
Physics
2 answers:
aalyn [17]3 years ago
7 0
What you can use is coulomb's inverse square law that states that force varies inversly as the square of distance.  <span>It menas that the force is calculated by dividing by distance squared. what this does is essentially as the distance doubles, the forces is reduced by a factor of 4 or can be divided by 4. Force at 0.5m=2.3328N. And brings you ti the answer</span>
Degger [83]3 years ago
3 0

Answer:

New force, F' = 2.33 N

Explanation:

It is given that,

A physicist found that a force of 0.72 N was measured between two charged sphere.

The distance between the spheres was, d = 0.9 m

We have to find the force between the two sphere when the distance was decreased to d' = 0.5 m

The force acting between two charged particles is given by :

F=k\dfrac{q_1q_2}{r^2}

i.e. F is inversely proportional to the square of distance between the charges. Let F' is the force when distance is decreased.

So, \dfrac{F}{F'}=(\dfrac{d'}{d})^2

\dfrac{0.72}{F'}=(\dfrac{0.5}{0.9})^2

On solving, we get : F' = 2.33 N

Hence, on decreasing distance the force between the charges increases.

You might be interested in
One group of students uses different methods to conserve water as listed below.
Deffense [45]
The best answer is b) <span>Method 1 and Method 3

Method 2, which is part of every other options, does involve using extra water because the dishwasher will necessarily use extra water, even if it is full when you use it. 
On the other hand, fixing leaky faucets requires no extra water and the recycled water used to wash your car has already been used. </span>
3 0
4 years ago
Materials that conduct heat and electricity well in the solid state result when
MA_775_DIABLO [31]
Materials that conduct heat and electricity well in the solid state result when metals bond with metals. <span>This type of bonding is called metallic bonding. Metallic bonding is when positive ions (metals) are in a 'sea of negative electrons'. The electrons are delocalised, which means they can move around easily and carry charge, and this enables it to conduct electricity, even in a solid state.</span>
8 0
4 years ago
When physical activity is a set plan or program for all ages, usually performed by a group through a local recreational unit, it
Alexeev081 [22]

Answer:

C. Sports activity

Explanation:

A sport activity is a form of competitive physical activity in forms of games. They are normally organized for individuals to participate  with the aim of improving physical abilities and skills, bring enjoyment to participants and act as a form of entertainment.

8 0
3 years ago
Qual a massa de água a 45 °C que devemos misturar com 200 g de água a 15 °C, para que o sistema entre em equilíbrio térmico a 35
Stells [14]

Responda:

400 g

Explicação:

Dado o seguinte:

Deixe Mass (m1) = m em t1 = 45 ° C

Massa (m2) = 200g em t2 = 15 ° C

Equilíbrio térmico (T) = 35 ° C

Usando a relação:

m1 * C * ΔT = m2 * C * ΔT

Onde m1 e m2 são as massas; C = capacidade de calor específico da água e ΔT é a mudança de temperatura

m1 * ΔT = m2 * ΔT

m * (45 ° C - 35 ° C) = 200 * (35 ° C - 15 ° C)

10 * m = 200 * 20

10 * m = 4000

m = 4000/10

m = 400g

5 0
3 years ago
A dog travels 3m East and then 4m West, what is his displacement?
RideAnS [48]

Answer:

his displacement is 5m

Explanation:

A is the stage at which a man starts walking. He's walking 4 m north, i.e. AB, then going 3 m east, i.e. BC. The displacement is the connecting straight line between the original and the final position. The displacement is thus the AC hypotenuse of the right-angle triangle. By applying the theorem of hypotenuse, we get  

⇒displacement=16+9−−−−−√=25−−√=5m

8 0
3 years ago
Other questions:
  • Which sentence is true about Polaris and the Sun?
    11·2 answers
  • Which of the following BEST describes the term "air resistance"?
    7·2 answers
  • Which of these statements is true?
    11·2 answers
  • What is the effect of load resistor on ripple factor
    12·1 answer
  • 9<br>Define reactant and products.​
    10·1 answer
  • An dog is transported from the earth to the moon. which measurement is the same in both places
    8·1 answer
  • The point is at the edge of the disk and the component bodies are:
    11·1 answer
  • Convert:<br> 1) 2kg into gram<br> 2) 5200m into km<br> 3) 20cm into m
    7·1 answer
  • Calculate the density of a (7,3)Li atom (with a radius of 152 pm) and of its nucleus. Explain your
    14·1 answer
  • coasting due west on your bicycle at 8 m/s, you encounter a sandy patch of road 7.2m across. when you leave the sandy patch your
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!