Answer:
Explanation:
Centripetal acceleration (a) is defined as the square of an object's velocity (V^2) divided by the distance of the object from it's point/axis of revolution (r). So:
which allows us to solve for the velocity:
6.6 * V/m is the electric field amplitude of an electromagnetic wave whose magnetic field amplitude is 2.20 mT
<h3>Given the data in the question:</h3>
Magnetic field amplitude = Bm = 2.20 mT = 2* T
Electric field amplitude = Em = ?
<h3>Electric field:</h3>
An electric field is a field created by electrically charged particles that attracts or repels other electrically charged particles surrounding it.
The greatest strength of the electric and magnetic fields is known as the electric field amplitude.
It can be said to be,
Em = c * Bm
Where, c is the speed of light(c = 3 * m/s)
Bm is the magnetic field amplitude
On substituting the values we get,
Em = c * Bm
Em = 3 * m/s * 2.20 * T
Em = 660000 V/m
Em = 6.6 * V/m
To learn more about electric field amplitude visit:
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Hmm.. I don't know. *grips you tightly*
This is easily explained saying that the frictional force between the books and the paper isn't big enough to produce a displacement in the books. The displacement in the books doesn't happen because the frictional force between the books and the surface they are standing on is bigger than the paper's one.
Answer:
1.96 m/s^2
Explanation:
angle of inclination, θ = 30.6°
coefficient of friction, μ = 0.36
Acceleration of the crate
a = g Sin θ - μ g Cos θ
a = 9.8 ( Sin 30.6 - 0.36 x Cos 30.6)
a = 9.8 ( 0.509 - 0.309)
a = 1.96 m/s^2
Thus, the acceleration f the crate is 1.96 m/s^2.