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3 years ago

Write a message about an important aspect of life on earth to be sent beyond our solar system

1 answer:

6 0

We grow crops (plants) on earth, so it's very important for that to go beyond earth because if there is no way to grow crops, we won't get enough nutrients from some synthetic (fake) food. hope I helped! :)

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In models of magnetic and electric fields, why are field vectors depicted by arrows?

taurus [48]

The arrows in models of magnetic and electric fields show both their magnitude and direction.

In Physics, a vector refers to a quantity that has both magnitude and direction. Hence, a vector always points in a given direction. The direction in which the arrow points is the direction of the vector in space.

In models of magnetic and electric fields, field vectors depicted by arrows because they represent both their magnitude and direction. The length of the arrow shows magnitude.

Learn more: brainly.com/question/102477

7 0

2 years ago

Por qué se celebra el día del deporte

yulyashka [42]

Answer:

Día Internacional del Deporte para el Desarrollo y la Paz, 6 de abril. El deporte ha desempeñado históricamente un papel importante en todas las sociedades, ya sea en forma de competiciones deportivas, de actividades físicas o de juegos. ... De hecho, el deporte es un socio natural para el sistema de la ONU.

Explanation:

7 0

3 years ago

Both segments of the wire are made of the same metal. Current I1 flows into segment 1 from the left. How does current I1 in segm

Andrei [34K]

Answer:

current I1 = current I2

Explanation:

since the wire is made up of the same material, from Kirchoff's current law sum of currents entering a particular node or segment of wire is equals to the sum of currents leaving that particular node or segment of wire

8 0

3 years ago

Please help!!!!!! please help!!!!!! please help!!!!!!

natulia [17]

Answer:

The answer is: wavelength

Explain:

Or crest

3 0

2 years ago

The component of the external magnetic field along the central axis of a 18 18 turn circular coil of radius 27.0 27.0 cm decreas

madreJ [45]

Answer:

Induced current I = 0.44 A

Explanation:

given data

no of turn N = 18

radius = 27.0 cm

resistance of the coil = 4.50 Ω

time = 2.90 s

magnetic field = 1.90 T to 0.500 T

solution

we get Induced EMF that is

E = - dφ ÷ dt ..............1

E = - N × A × (B2 - B1) ÷ Δt

E = N × A × (B1 - B2) ÷ Δt

area of cross section of the coil A = π × r²

area of cross section = 3.14 × (0.27)²

area of cross section = 0.228 m²

Initial magnetic field B1 = 1.9 T

and

Final magnetic field B2 = 0.5 T

time Δt = 3.7 s

put here value and we get

E = $\frac{18 \times 0.228 \times (1.9-0.5)}{2.90}$

E = 1.98 V

and

Induced current I is express as

Induced current I = E ÷ R ................2

Induced current I = $\frac{1.98}{4.5}$

Induced current I = 0.44 A

3 0

3 years ago