<span>So the question is what is the total distance travelled by a car that is moving with constant speed of v=20m/s in t=2 mins. First, lets convert t=2 mins to t= 120s. Since v=s/t, to get the distance wee need to get s. To do that we need to multiply both sides of the equation with t so: s=v*t. Now we input our numbers and get s=(20m/s)*(120s)=2400m. So the correct answer is (4) 2400m.</span>
I don't know I'm just a troll.
Answer:
(a) ΔФ = -0.109W
(b) emf = 28.43V
(c) Iin = emf/R
Explanation:
(a) In order to calculate the magnetic flux you use the following formula:
(1)
B: magnitude of the magnetic field = 1.40T
A: area of the rectangular coil = (0.23m)(0.34m)=0.078m^2
Where it has been taken into account that at the beginning the normal vector to the cross sectional area of the coil, and the magnetic field vector are parallel. When the coil is rotated the vectors are perpendicular.
Then, you obtain:
The change in the magnetic flux is -0.109 W
(b) During the rotation of the coil the emf induced is given by:
(2)
N: turns of the coil = 60
ΔФ: change in the magnetic flux = 0.109W
Δt: lapse time of the rotation = 0.230s
You replace the values of the parameters in the equation (2):
The induced emf is 28.43V
(c) The induced current in the coil is given by:
(3)
R: resistance of the coil (it is necessary to have this value)
emf :induced emf = 28.43V
The largest distance moved by a particle of a vibrating body from its equilibrium position is called amplitude. Wave B has higher energy because wave it has a higher amplitude.
<h3>What is the amplitude of a wave?</h3>
The largest distance moved by the particles on either side of the mean position is the amplitude of a wave.
The maximum height of either crest or trough from its equilibrium position is called amplitude.
Hence Wave B has higher energy because it has a higher amplitude.
To learn more about the amplitude of a wave refer to the link;
brainly.com/question/9351212
Answer:
D. Nothing will happen; the seesaw will still be balanced.
Explanation:
D. Nothing will happen; the seesaw will still be balanced. Since both toruqes or momentums respect to the center have changed in the same amount (one-half their original distance) the seesaw will remain balanced, if the children change distance in a different amount then it will be out of balance
