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
Sladkaya [172]
3 years ago
12

A long, solid rod 5.3 cm in radius carries a uniform volume charge density. Part A If the electric field strength at the surface

of the rod (not near either end) is 22 kN/C , what is the volume charge density?
Physics
1 answer:
Blizzard [7]3 years ago
6 0

Answer:

\rho = 7.35\times \muC/m^3

Explanation:

given,

Radius of the solid rod, R = 5.3 cm

Electric field strength,E = 22 kN/C

Let the volume charge density be ρ

From Gauss law

  E = \dfrac{Rl}{2\epsilon_0}

 ε₀ is the permitivity of free space

  R is the radius of the rod

 and also,

\rho=\dfrac{2E\epsilon_0}{R}

ρ is the volume charge density

\rho=\dfrac{2\times 22\times 10^{3}\times 8.854\times 10^{-12}}{0.053}

\rho = 7.35\times 10^{-6}\ C/m^3

\rho = 7.35\times \muC/m^3

Hence, the volume charge density is equal to \rho = 7.35\times \muC/m^3

You might be interested in
Question 1
egoroff_w [7]
C. Transform boundary
3 0
4 years ago
Read 2 more answers
Erickson’s psychosocial stages emphasize
Musya8 [376]
This question is true because it just is
4 0
3 years ago
Need ASAP!! An object lies motionless on a rough inclined surface .
PSYCHO15rus [73]

Answer:

yes

Explanation:

yes

7 0
3 years ago
Read 2 more answers
A 1.0 kg copper rod rests on two horizontal rails 1.0 m apart and carries a current of 50 A from one rail to the other.
vagabundo [1.1K]

Answer

given,

mass of copper rod = 1 kg

horizontal rails = 1 m

Current (I) = 50 A

coefficient of static friction = 0.6

magnetic force acting on a current carrying wire is

           F = B i L

Rod is not necessarily vertical

F_x =i L B_d

F_y= i L B_w

the normal reaction N = mg-F y

static friction       f = μ_s (mg-F y )

horizontal acceleration is zero

F_x-f = 0

iLBd = \mu_s(mg-F_y )

 B_w = B sinθ

 B_d = B cosθ

iLB cosθ= μ_s (mg- iLB sinθ)

B = \dfrac{\mu_smg}{i(cos\theta +\mu_s sin\theta)}

\theta =tan{-1}{\mu_s}

\theta =tan{-1}{0.6}

\theta = 31^0

B = \dfrac{0.6\times 1 \times 9.8}{50(cos31^0 +0.6 sin31^0)}

       B = 0.1 T

4 0
4 years ago
Un atleta tiene en un instante dado una velocidad de 4 m/s. Si a partir de ese instante y durante 2 s adquiere un MRUA con una a
kolbaska11 [484]

Answer:

Velocidad final, V = 8 m/s

Explanation:

Dados los siguientes datos;

Velocidad inicial, u = 4 m/s

Aceleración, a = 2 m/s²

Tiempo, t = 2 segundos

Para encontrar la velocidad final (v), usaríamos la primera ecuación de movimiento;

V = u + at

Sustituyendo en la fórmula, tenemos;

V = 4 + 2*2

V = 4 + 4

Velocidad final, V = 8 m/s

6 0
3 years ago
Other questions:
  • Rank, from largest to smallest, the following four collisions according to the magnitude of the change in the momentum of cart B
    15·1 answer
  • 1)the magnetic field is strongest near_________of a bar magnet.
    6·2 answers
  • While visiting the planet Mars, Moe leaps straight up off the surface of the Martian ground with an initial velocity of 105 m/s
    7·1 answer
  • What two forces are balanced in what we call gravitational equilibrium?
    10·1 answer
  • Pls help me, sooner than later​
    13·1 answer
  • The lens-makers’ equation applies to a lens immersed in a liquid if n in the equation is replaced by n2/n1. Here n2 refers to th
    8·1 answer
  • What is the slope of the line if the rise of a line on a distance versus-time graph is 900 meters and the run is 3 minutes?
    10·1 answer
  • What is electric force ​
    10·1 answer
  • What type of composition does an igneous rock have that contains mostly plagioclase feldspar and about 30 percent dark silicate
    13·2 answers
  • What type of bone is the thigh
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!