The Electric current is 1.11* 10^{-4}A
Given that the coil's radius is 3.55 cm (0.35 m),
The formula for the coil's area is A = r2 A = (3.14) (0.35)2 = 0.005024 m2.
R = Resistance = 600 N = Number of spins = 500 B = Magnetic field = (0.0120)
t + (3 x 10⁻⁵) t⁴
The number t = 5 is substituted for taking the derivative at both the induced current and the electric current.
The Electric current is therefore 1.11* 10^{-4}A
Electric current - The rate of electron passage in a conductor is known as electric current. The ampere is the electric current's SI unit. Electrons are little particles that are part of a substance's molecular structure. These electrons can be held loosely or securely depending on the situation.
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Answer:
0.91 J
Explanation:
The kinetic energy of an object is given by
where
m is the mass of the object
v is its speed
For the lemming in this problem, when he jumps, we have:
m = 0.0780 kg is the mass
v = 4.84 m/s is the speed
Substituting into the equation, we find:
Answer:
Sunspot cycle
Explanation:
The number of sunspots seen on the "surface" of the Sun varies every year. These variations are called a cycles. The length of the cycle is about eleven years on average. The Sunspot Cycle was discovered in 1843 by the amateur German astronomer Samuel Heinrich Schwabe.
Answer:
Horizontal distance to floor = 0.7246 m or 72.46 cm
Explanation:
The reflection of the nearest part of the floor will be seen at the bottom part of the mirror.
Let's start by imagining there is beam starting from the person's eyes hitting the bottom part of the mirror. It will be reflected at the same angle as it arrived. To find this angle we will use the following lengths:
Vertical Distance of eyes - Vertical distance of bottom edge of mirror
= 1.62 - 0.4 = 1.22 m
This will be used with the distance from the wall (2.21 m) to find the angle of incidence of the beam.
This is:
Tan(theta) = Perpendicular/Base
Tan(theta) = 1.22 / 2.21 = 0.552036
Taking the inverse of tan to find theta we get: Theta = 28.9°
This is the angle of incidence, and the angle of the reflected ray will thus be 90° - 28.9° = 61.1°
Since the height of the mirror and angle of reflection of the beam are known, we can calculate the horizontal distance of the floor:
Tan (61.1°) = Horizontal distance to floor / height of mirror
Tan (61.1°) = Horizontal distance to floor / 0.4
Horizontal distance to floor = 0.7246 m or 72.46 cm
Answer:
Objects that fall near Earth’s surface are rarely in free fall.
"Free fall" is the situation where the ONLY force on an object is
the force of gravity, and nothing else.
Objects near Earth's surface are almost always surrounded by air.
If they are falling, then the air is exerting forces on them, and they
are not in "free fall".
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Explanation: