Answer:
The peak emf generated by the coil is 418.3 mV
Explanation:
Given;
number of turns, N = 980 turns
diameter, d = 11 cm = 0.11 m
magnetic field, B = 5 x 10⁻⁵ T
time, t = 7 ms = 7 x 10⁻³ s
peak emf, V₀ = ?
V₀ = NABω
Where;
N is the number of turns
A is the area
B is the magnetic field strength
ω is the angular velocity
V₀ = NABω and ω = 2πf = 2π/t
V₀ = NAB2π/t
A = πd²/4
V₀ = N x (πd²/4) x B x (2π/t)
V₀ = 980 x (π x 0.11²/4) x 5 x 10⁻⁵ x (2π/0.007)
V₀ = 980 x 0.00951 x 5 x 10⁻⁵ x 897.71
V₀ = 0.4183 V = 418.3 mV
The peak emf generated by the coil is 418.3 mV
Answer:
older plates that are subducting almost perpendicularly, and when the location is far away from the edge of other tectonic plates, are the most likely areas for copper deposits to form
Explanation:
Answer:
A new substance is not formed.
Explanation:
Ice melting is not a chemical reaction because when an ice is melting there is no chemical change happening upon the ice. The water molecules are still the same, they are still water molecules.
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Answer:
Their change in momentum is the same in magnitude and opposite in direction
Explanation:
The momentum of an object is defined as:
where
m is the mass of the object
v is the velocity of the object
Therefore, the change in momentum of an object is
where is the change in velocity.
During a collision, the force experienced by an object is equal to the rate of change of momentum:
where is the duration of the collision.
According to Newton's third law of motion, the force exerted by vehicle 1 on vehicle 2 during the collision is equal (and opposite) to the force exerted by vehicle 2 on vehicle 1, so
Which means
And since the duration of the collision is the same for the two vehicles, this becomes
B.
The addition if vectors is commutative, so adding in any order will lead to the same result; just draw a straight line from the starting point to the tip of the final vector.