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Sloan [31]
2 years ago
8

Magnetism is due to the movement of ______.

Physics
2 answers:
motikmotik2 years ago
6 0

\qquad\qquad\huge\underline{{\sf Answer}}♨

Magnetism is due to the movement of <u>charge</u>

Both magnetic fields are caused due to attraction and repulsion of charges, where electric fields is caused by stationary charges, while magnetic fields are caused by moving charges

Ierofanga [76]2 years ago
5 0

Answer:

electrons

Explanation:

Brainliest

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If no friction acts on a diver during a dive, then which of the following statements is true? A) The total mechanical energy of
EleoNora [17]
If no frictional work is considered, then the energy of the system (the driver at all positions is conserved.

Let
position 1 = initial height of the diver (h₁), together with the initial velocity (v₁).
position 2 = final height of the diver (h₂) and the final velocity (v₂).

The initial PE = mgh₁ and the initial KE  = (1/2)mv₁²
where g = acceleration due to gravity,
m = mass of the diver.
Similarly, the final PE and KE are respectively mgh₂ and (1/2)mv₂².
PE in position 1 is converted into KE due to the loss in height from position 1 to position 2.
 
Therefore
(KE + PE) ₁ = (KE + PE)₂

Evaluate the given answers.
A) The total mechanical energy of the system increases.
     FALSE

B) Potential energy can be converted into kinetic energy but not vice versa.
     TRUE

C) (KE + PE)beginning = (KE + PE) end.
     TRUE

D) All of the above.
     FALSE

4 0
3 years ago
Read 2 more answers
A long solenoid (radius = 3.0 cm, 2500 turns per meter) carries a current given by I = 0.30 sin(200 t) A, where t is measured in
I am Lyosha [343]

Answer:

1.86 × 10 ∧-3 V/m

≅ 1.9 × 10 ∧-3 V/m

Explanation:

Radius of long solenoid (R)= 3 cm

Turns per meter (n) = 2500

current flowing in coil (I) = 0.30 sin (200 t)

Time (t) = 2.5 ms

Distance at which electric field calculated (r) = 4 cm

The main solution is shown in the picture attached below.

Thank you and i hope it helps.

4 0
3 years ago
How do we find the average force in physics?​
svlad2 [7]
Force is equal to mass multiplied by acceleration. Hope this helps!
8 0
3 years ago
Read 2 more answers
The distance covered by a car at a time, t is given by x = 20t + 6t4, calculate
Anni [7]

Answer:

(i) v = 44 m/s

(ii) a = 72 m/s^2

Explanation:

You have the following equation for the potion of a car:

x=20t+6t^4

(i) The instantaneous velocity is the derivative of x in time:

\frac{dx}{dt}=20+(6)(4)t^3=20+24t^3

for t = 1 is:

v(t=1)=\frac{dx}{dt}=20+24(1)^3=44m/s

(ii) The instantaneous acceleration is the derivative of the velocity:

\frac{dv}{dt}=24(3)t^2=72t^2

for t = 1

a(t=1)=\frac{dv}{dt}=72(1)^2=72m/s^2

8 0
3 years ago
A voltage amplifier needs a high input resistance and a low output resistance. Select one: True False
cupoosta [38]

Answer:

Explanation:

In electric circuit , the potential difference is always developed across the resistance .

Now is we are to amplify the voltage , that means low input voltage is converted into high voltage output .

Therefore we require low resistance at input for low voltage and high out put resistance for high output

Thus the statement given is wrong .

6 0
3 years ago
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