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
konstantin123 [22]
3 years ago
10

Anyone tell me what is the physics​

Physics
1 answer:
Katyanochek1 [597]3 years ago
6 0

Answer:

physic is branch of science in which math is its brother and will deal with the equation,law and evidence of natural phenomenon.

You might be interested in
A capacitor is made from two hollow, coaxial, iron cylinders, one inside the other. The inner cylinder is negatively charged and
kari74 [83]

Answer:

a. 4.2057\times 10^-^1^2 F \ or 4.2057\ pF\\b. 2.7344V

Explanation:

a.

Given the permittivity constant to be 8.854\times 10^-^1^2 F/m,The capacitance of a cylindrical \ capacitor of length, L is given by the equation:

C=\frac{2\pi \epsilon _o L}{ln(b/a)} where b is the radius of the outer cylinder and a the radius of the inner cylinder.

The values are given as:a=0.550mm(5.5\times 10^-^4m), \ b=4.00mm(4.0\times10^-^3m), \ L=15.0cm(0.150m)

Substitute in our capacitance equation:

C=\frac{2\times\pi \times 8.854\times 10^-^1^2 \times 0.15}{In(4.00/0.550)}\\=4.2057\times 10^-^1^2 F

Hence the capacitance is 4.2057\times 10^-^1^2 F

b. The charge on the capacitance is related to the potential difference across it. The potential difference is expressed using the equation:

Q=CV,Q=11.5pC

From a above, we already have our capacitance value,C=4.2057\times 10^-^1^2 F

We substitute C in the pd equation:

v=>(11.5)/(4.2057)\\=2.7344V

Hence, the applied potential difference is 2.7344V

4 0
3 years ago
A. Two point charges totaling 7.50 µC exert a repulsive force of 0.100 N on one another when separated by 0.911 m. What is the c
andriy [413]

coulomb's law

f repulsive = q1q2/4 pi epsilon nought r squared

0.1= q1q2/4 pi epsilon nought 0.911 squared

q1+q2= 7.50 µC

0.1= q1(7.5µC-q1)/4 pi epsilon nought 0.911 squared

solve for q1

7 0
3 years ago
When an object with a negative charge is moved from point A to point B through an external electrical field, it gains electrical
Sergio039 [100]

Explanation:

As per the problem,

           \Delta U = (V_{B} - V_{A})(-q) > 0

When q > 0 then -q is a negative charge . Since, change in potential energy (\Delta U) increases.

or,     (V_{A} - V_{B})q > 0

or,      V_{A} > V_{B}

Therefore, both positive and negative charge will move from V_{A} to V_{B} and as V_{B} < V_{A} so both of them move through a negative potential difference.

Thus, we can conclude that the true statements are as follows.

  • The positively charged object moves through a negative potential difference between A and B (that is, VB - VA < 0).
  • The negatively charged object moves through a negative potential difference between A and B (that is, VB - VA < 0).      
4 0
2 years ago
The half-life of carbon-14 is 5370 years. The carbon-14 levels in a fossil indicate that 6 half-lives have passed. How old is th
vodomira [7]
On half life is 5370 years; 6 half lives have passed. You just multiply,

5370*6 = 32,220 years
8 0
2 years ago
Read 2 more answers
A motorist drives along a straight road at a constant speed of 15 m/s. just as she passes aparked motorcycle police officer , th
allsm [11]

Explanation:

Distance traveled by motorist =(15.0m/s)t

Distance traveled by policeman =1/2(2.00m/s2)t2

(a) Intercept occurs when 15.0t =t2or t=15.0s.

(b) x(officer)=1/2(2.00m/s2)t2= 225m

4 0
1 year ago
Other questions:
  • Calculate the value of δs when 64.0 g of ga(l) solidifies at 29.8 ∘c.
    7·1 answer
  • What type of image is formed by a lens if m = -1.6?
    10·2 answers
  • the half life of a certain substance is 25 years. How long will it take for a sample of this substance to decay to 90% of its or
    12·1 answer
  • In _____, marketers determine price based on what consumers are willing to pay and then subtract desired margins to yield target
    5·1 answer
  • The passengers in a roller coaster car feel 50% heavier than their true weight as the car goes through a dip with a 20 m radius
    9·2 answers
  • What does the symbol for Monday mean???
    6·1 answer
  • Two small particles of mass m1 and mass m2 attract each other with a force that varies inversely with the cube of their separati
    11·1 answer
  • An object is moving at a constant velocity. All but one of the following statements could be true. Which one cannot be true?
    10·1 answer
  • mass is tied to spring and begins periodically . the distance between its highest and its lowest position is 48cm. what is the a
    15·1 answer
  • Is an object on the surface of Earth sitting still relative to outer space?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!