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
Aloiza [94]
3 years ago
15

What is the relationship between the strength of an

Physics
1 answer:
Anastaziya [24]3 years ago
3 0

Answer:

As the number of turns in the coil increases, the strength  of the electromagnet increases.

Explanation:

When current flows through a coil the coil behaves as an electromagnet. The strength of electromagnet depend the amount of current, no of turns of coil and the core of coil.

B=μ₀ N I

μ₀ = permeability of the core

N = Number of turns of the coil

I = Current flowing through the coil

Increasing the current and number of coils increase the strength of electromagnet.

You might be interested in
Zoning laws establish _______. a. what types of buildings can be built in an area b. the uses an area of land can be put to c. w
fiasKO [112]

Answer:

Zoning laws establish b. the uses an area of land can be put to.

5 0
3 years ago
Read 2 more answers
Please, I need help with this question.
Jet001 [13]

The x and y components of the velocity vector is 17.32 m/s and 10 m/s respectively.

<h3>What is the x - component of the velocity?</h3>

The x-component of the ball's velocity is the velocity of the ball in the horizontal direction or x-axis.

The velocity of the ball in x-direction is calculated as follows;

Vx = V cosθ

where;

  • Vx is the horizontal velocity of the ball
  • V is the speed of the ball
  • θ is the angle of inclination of the speed

Vx = (20 m/s) x (cos 30)

Vx = 17.32 m/s

The velocity of the ball in y-direction is calculated as follows;

Vy = V sinθ

where;

  • Vy is the vertical velocity of the ball
  • V is the speed of the ball
  • θ is the angle of inclination of the speed

Vy = 20 m/s x sin(30)

Vy = 10 m/s

Learn more about x and y components of velocity here: brainly.com/question/18090230

#SPJ1

3 0
1 year ago
Why are aftershocks dangerous to buildings after a large earthquake
Katen [24]

because the building are weaker and they are most likley to fall

6 0
3 years ago
A deer walks 17.0 m south and then 12.0 m north. Find both the magnitude of its displacement and the distance traveled.
Zepler [3.9K]

Answer:

Explanation:

Displacement involves direction and distance.  In this case, the deer has walked a distance of 17 + 12 = 29m but because of the South-then-North direction, the net displacement is only 17-12 = 5m.

So the answer is A)   5.0 m, 29.0 m

7 0
3 years ago
The rotor of an electric motor has an angular velocity of 3600 rpm when the load and power are cut off. the 125-lb rotor, which
velikii [3]

Answer:

      θ '= 4975 rev

Explanation:

For this exercise let's use the relationship between work and the change in kinetic energy

         W = ΔK

the expression for work is

         W = - τ Δθ

where the negative sign indicates that the torque is in the opposite direction to rotation

kinetic energy

           K = ½ I w²

         

we substitute

           - τ Δθ = 0 - ½ I w²

           θ = \frac{1}{2} \ \frac{I w^2}{\tau}

if we approach the rotor to a cylinder with an axis of rotation through its center

          I = ½ m r²

we substitute

          θ = ½ (½ m r²)   \frac{w^2}{\tau}

How the measurements are in the English system, the weight

         W = m g

          m = W / g

let's reduce to the english system

          w = 3600 rev / min (2pi rad / 1rev) (1 min / 60s) = 376.99 rad / s

          r = 9 in (1 ft / 12in) = 0.75 ft

let's calculate

           m = 125/32 = 3.91 slug

          θ = ¼ 3.91 0.75² 376.99² / 2.5

          θ = 3.126 10⁴ rad

let's reduce to revolutions

          θ’= 3.126 10⁴ rad (1rev / 2π rad)

          θ’= 4974.9 rev

          θ '= 4975 rev

6 0
3 years ago
Other questions:
  • Accuracy is the correctness of a measurement. true or false.
    13·2 answers
  • A rocket rises vertically, from rest, with an acceleration of 3.2 m/s2 until it runs out of fuel at an altitude of 1300 m. After
    8·1 answer
  • Objects falling through the air experience a type of friction called air resistance. true or false
    8·2 answers
  • A reciprocating compressor is a device that compresses air by a back-and-forth straight-line motion, like a piston in a cylinder
    14·1 answer
  • Identify the formula for the binary ionic compound, aluminum oxide.​
    7·2 answers
  • Scientists are working on a new technique to kill cancer cells by zapping them with ultrahigh-energy (in the range of 1012 W) pu
    8·1 answer
  • The "Hangtime" or time spent in the air by a projectile is dependent on
    8·1 answer
  • A car starts from rest and accelerates at 5 m/s/s.
    5·1 answer
  • A cyclist accelerates from 0m/s to 8m/s in 3 seconds.
    14·1 answer
  • The gravitational force between two volleyball players is 3.3x10^-7.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!