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
Deffense [45]
3 years ago
7

We can model a lightning bolt as a very long, straight wire. If a lightning bolt carries a current of 30 kA, and you are unfortu

nate enough to be 8.9 m away from the lightning bolt, how large of a magnetic field do you experience
Physics
1 answer:
Liula [17]3 years ago
8 0

Answer:

Magnetic field experienced = 4.5 × 10⁻⁴ T

Explanation:

The magnetic field around an infinite straight current-carrying wire at a distance r from the wire is given by

B = (μ₀I)/(2πr)

B = ?

I = 20 KA = 20000 A

r = 8.9 m

μ₀ = magnetic permeability = 1.257 × 10⁻⁶ T.m/A

B = (1.257 × 10⁻⁶ × 20000)/(2π×8.9) = 4.5 × 10⁻⁴ T

You might be interested in
An object, whose mass is 0.660 kg, is attached to a spring with a force constant of 132 N/m. The object rests upon a frictionles
Arada [10]

Answer:

See below

Explanation:

a)  Spring force at release =  k * d = 132 N/m * .120 m = 15.84 N

b) F = ma

   15.84 = (.660 kg)(a)     a = 24 m/s^2

c) Toward the left ....the object is accelerated to the left

7 0
1 year ago
10. Electrical Power: Why do our electronic devices get hot? We know
Vesna [10]

Answer:

Now, think on the electrons flowing through a conductor (we can think on the resistor as a simple conductor, like a piece of metal)

Inside the conductor, we have some "fixed" (they do not flow with the current) electrons, such that as the current flows in the conductor, the flowing electrons can interact with the fixed ones in the conductor. Then we can have collisions inside the conductor.

In those collisions, the flowing electrons leave energy in the conductor, and as we know, heat is a form of energy. Then when we have a lot of these collisions, the temperature of the conductor increases.

That is why electronic devices get hot.

Also, as the temperature of a conductor increases, the electrons inside of it start to move more, then the probability of an interaction with the flowing electrons increases.

3 0
3 years ago
Explain e pieces of evedince
olasank [31]
Evidence is <span>the facts or information that shows and supports a statement. WIth evidence, you can prove that what you say is true/valid.</span>
8 0
3 years ago
Read 2 more answers
A calorimeter has a heat capacity of 1265 J/oC. A reaction causes the temperature of the calorimeter to change from 22.34oC to 2
Ray Of Light [21]
<h2>Heat released in this process is 3516.7 J</h2>

Explanation:

A calorimeter has a heat capacity of 1265 J/°C

Heat capacity of calorimeter = 1265 J/°C

A reaction causes the temperature of the calorimeter to change from 22.34°C to 25.12°C

Change in temperature = 25.12 - 22.34 = 2.78°C

Heat released = Heat capacity of calorimeter x Change in temperature

Heat released = 1265 x 2.78 = 3516.7 J

Heat released in this process is 3516.7 J

5 0
3 years ago
Read 2 more answers
What factor affects sensation?
stiks02 [169]
The sensation differs between right and left. depending on what your under, pain,stress,sickness and sometimes possible death. <span />
3 0
3 years ago
Other questions:
  • I need help with a physics test, can someone help i am willing to pay.
    11·1 answer
  • A plane takes off in san francisco at noon and flies toward the southeast. an hour later, it is 400 kilometers east and 300 kilo
    5·1 answer
  • A ___________ is how strong the push or pull is
    11·1 answer
  • Anthony and Sissy are participating in the "Roll-a-Rama" rollerskating dance championship. While 75.6 kg Anthony rollerskates ba
    14·1 answer
  • 5. What is the angle between the incident and reflected rays when a ray of light incident
    5·1 answer
  • Which of the following is a simple machine? A. wedge B. meat grinder C. car D. bicycle
    14·1 answer
  • What is the primary source of a sound?
    13·1 answer
  • If i try to fail and succeed which one did I do
    7·1 answer
  • 106 grams of liquid water are in a cylinder with a piston maintaining 1 atm (101325 Pa) of pressure. It is exactly at the boilin
    11·1 answer
  • A solid weighs 0.9N in air and 0.2N in a liquid of density 700kg/m^3. Calculate
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!