Ajet airplane with a 75.0 m wingspan is flying at 255 m/s. what emf is induced between the wing tips in v if the vertical component of the earth's magnetic field is 3.00 x 10^-5 t?

The emf is 0.574 volt.

Explanation:

Given that,

Magnetic field

Length = 75.0 m

Velocity = 255 m/s

We need to calculate the emf

Using formula of emf

Where, v = velocity

l = length

B = magnetic field

Put the value into the formula

Hence, The emf is 0.574 volt.

the minimum constant speed at which she can catch the train is 2.7 m/s

given:

acceleration = 0.6

time = 4.5 s

to find:

velocity = ?

formula used:

from 1st kinematic equation we get,

v = u + at

u = initial speed of train = 0 m/s

v = final speed of the train

a = acceleration of the train

t = time

solution:

from 1st kinematic equation we get,

v = u + at

u = initial speed of train = 0 m/s

v = final speed of the train

a = acceleration of the train

t = time

v = 0 + (0.6 × 4.5)

v = 2.7 m/s

the minimum constant speed at which she can catch the train is 2.7 m/s

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