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Rufina [12.5K]
2 years ago
11

Suppose the number of coils in the solenoid of an electromagnet is increased. What happens to the electromagnet?

Physics
2 answers:
Akimi4 [234]2 years ago
5 0

Answer:

Its strength becomes greater.

Explanation:

vagabundo [1.1K]2 years ago
4 0

Answer:

Answer is Below

Explanation:

According to a Quizlet, An electromagnet is a solenoid with a ferromagnetic core. Both a solenoids and an electromagnet's magnetic field increases when the number of coils, closeness of the coils, and current increases.

Hopes this Helps :D

Mark me Brainliest Please : )

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I started to solve this problem but I’m not sure on what to do next.
snow_tiger [21]

ANSWER:

3408.81 kg

STEP-BY-STEP EXPLANATION:

Given:

v = 111 m/s

Ek = 21000000 J

We have that the formula for kinetic energy is as follows:

E_k=\frac{1}{2}\cdot m\cdot v^2

We substitute the values given in the exercise and solve for m (mass)

\begin{gathered} 21000000=\frac{1}{2}\cdot m\cdot111^2 \\ m=\frac{21000000\cdot2}{111^2} \\ m=3408.81\text{ kg} \end{gathered}

The mass of the helicopter is 3408.81 kilograms.

7 0
9 months ago
If we use 1 millimeter to represent 1 light-year, how large in diameter is the Milky Way Galaxy?
storchak [24]

Answer:

d.100 meters

Explanation:

The diameter of the Milky Way Galaxy is approximately 100,000 light years.

Here we are using 1 millimiter (1 mm) to represent 1 light-year (1 ly). So, we can set the following proportion:

1 mm : 1 ly = x : 100,000 ly

and by finding x, we find the diameter of the Milky Way Galaxy in the scale used:

x=\frac{(1mm )(100,000 ly)}{1 ly}=100,000 mm = 100 m

so the correct answer is

d. 100 meters

4 0
3 years ago
Solve for M₂
soldi70 [24.7K]

Explanation:

M₂ = Fr²/GM₁

M₂ = [(132N)(.243m)²]/[(6.67*10^-11N*m²/kg)(1.175*10^4kg)]

M₂ = (7.79N*m²)/(7.84*10^-7N*m²)

M₂ = 9.94*10^6 kg

5 0
3 years ago
Why is it so important to avoid pollution of freshwater ecosystems? A. Freshwater ecosystems contain more species than marine ec
Mrrafil [7]

The answer is B because it literally says it right there, and I don't wanna make it impossibly confusing for a middle school student, lol.

5 0
3 years ago
Read 2 more answers
The sides of a square baseball diamond are 90 feet long. When a player who is between second and third base is 60 feet from seco
Sedbober [7]

Answer:

d(L)/dt  =  6,96 ft/s

Explanation:

We have a right triangle where the hypotenuse (L) is the distance between the player and home plate, the legs are the line between third base and home plate ( 90 feet ) and distance between the player and third base (x)  (over the line between second and third base). So we can write

L²  =  (90)²  +  x²

Applying differentiation in relation to time, on both sides of the equation we have:

2*LdL/dt  =  0  + 2*x d(x)/dt     (2)

In this equation we know:

d(x)/ dt  =  22 feet/sec

x = 30 ft

We need to calculate  L when the player is at 30 feet from third base

Then

L²  =  (90)² + (30)²

L²  =  8100 + 900

L  = √9000

L =94,87 feet

Then we are in condition for calculate  d(L)/dt from the equation

2*Ld(L)/dt  =  0  + 2*x d(x)/dt  

2*94,87 * d(L)/dt  =  2* 30* 22     ⇒  189,74 d(L)/dt = 1320

d(L)/dt  =  1320/ 189,74

d(L)/dt  =  6,96 ft/s

7 0
3 years ago
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