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3 years ago

HELP PLEASE

Physics

2 answers:

Artemon [7]3 years ago

5 0

Explanation:

Electromagnetic induction: It is the phenomenon of the production of electromagnetic force across the conductor by changing the magnetic field.

The current can be induced by moving the conductor in the magnetic field. The current can also be induced by changing the magnetic field across the conductor.

The induced current can be increased in the coil by the following ways:

By increasing the strength of the magnet.

By increasing the speed of the magnet through the coil.

By adding more loops of wire to the coil.

By increasing the magnetic flux.

Therefore, "by moving the magnet away from the coil" will not increase the electric current induced in a wire. It will decrease the electric current induced in the wire.

Ira Lisetskai [31]3 years ago

3 0

The answer is magnet away from the coil

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A small plane flies at a speed of 102 km/h in still air. Suppose the wind blows out from the west (with the air moving east) at

Semmy [17]

Answer:

2.68 hours

Explanation:

A.) Suppose the wind blows out from the west (with the air moving east). The pilot should then head her plane to northwest direction to move directly north.

B.) Given that plane flies at a speed of 102 km/h in still air. And the wind blows out from the west (with the air moving east) at a speed of 46 km/h.

The plan resultant speed can be calculated by using pythagorean theorem.

Resultant Speed = Sqrt( 102^2 + 46^2 )

Resultant Speed = Sqrt( 12520)

Resultant speed = 111.89 km/h

From the definition of speed,

Speed = distance/time

Where distance = 300 km

Substitute the resultant speed and the distance into the formula.

111.89 = 300/time

Time = 300/111.89

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Therefore, it take her 2.68 hours to reach a point 300 km directly north of her srarting point

7 0

3 years ago

I need so much help 50 points!!!!!! complete the graph

motikmotik

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Its Period Number - 4

Its Family Name - Transition Metal

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Its Group Number - 14

Its Period Number - 2

Its Family Name - Semiconductor

Third Symbol : Astatine (At)

Its Group Number - 17

Its Period Number - 6

Its Family Name - Halogen

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3 years ago

Acceleration of a free-falling object in a frictionless environment increases as a function of time.

Digiron [165]

A free-falling object is an object moving under the effect of gravitational forces alone

The correct option to select for the True or False question is False

The reason the above selected option is correct is as follows:

According to Newton's second law of motion, we have;

Force = Mass × Acceleration

The force of gravity is $F_{g} =G \cdot \dfrac{M \cdot m}{r^{2}}$

Where;

$G \cdot \dfrac{M }{r^{2}} = Acceleration \ due \ to \ gravity , \ g \approx 9.81 m/s^2$

m = The mass of the object

∴ The force acting on an object in free fall, $F_g$ = m × g

Therefore the acceleration of an object in free fall is the constant acceleration due to gravity, and it therefore, does not change with time

The correct option for the question, acceleration of a free-falling object in a frictionless environment increases as a function of time is False

Learn more about object in free fall here:

brainly.com/question/13712424

brainly.com/question/11698474

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2 years ago