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3 years ago

If the output current for the transformer is 1.8 A, find the input current.

Physics

2 answers:

MariettaO [177]3 years ago

8 0

3.16 B please put brainliest have a cheerful day!
God bless
AlexFray555

Iteru [2.4K]3 years ago

3 0

The answer is 3.16 B

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An astronaut of mass m in a spacecraft experiences a gravitational force F=mg when stationary on the launchpad.

zaharov [31]

gravitational force is the attraction force of earth on an object which is near the surface of earth

It will not depend on the velocity or acceleration of earth

So it will not change while an object is stationary or it is moving with some acceleration

So here we will say that force will remain the same

$F = mg$

7 0

4 years ago

In the future, several students living different types of electromagnetic radiation. Which of the following travels through spac

Gwar [14]

Answer:

Explanation:

As the visible light, infrared and radio waves are all electromagnetic waves with different frequency and wavelength, all of them propagate through the space at the same constant speed which is the speed of light in vacuum, as they meet the following equation:

c = λ*f

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3 years ago

For a body falling freely from rest (disregarding air resistance), the distance the body falls varies directly as the square o

My name is Ann [436]

Answer:

The distance is 199.98 ft.

Explanation:

Given that,

Distance = 512 feet

Time = 88 sec

The distance the body falls varies directly as the square of the time.

$s\propto t^2$

$s=kt^2$

We need to calculate the value of constant

Put the value into the formula

$512=k\times(88)^2$

$k=\dfrac{512}{(88)^2}$

$k=0.06611$

We need to calculate the distance

Using formula of distance again

$s=kt^2$

Put the value into the formula

$s=0.06611\times(55)^2$

$s=199.98\ ft$

Hence, The distance is 199.98 ft.

4 0

3 years ago

A 5 kg bucket is lifted from the ground into the air by pulling in 10 meters of rope with linear density of 2 kg/m at a constant

iren [92.7K]

Answer:

Workdone W = 1465.1 J

Explanation:

The weight of the water = density × volume

weight of the water = 1000 kg/m³ × 100 cm³

weight of the water = 1000 kg/m³ × 0.0001 m³

weight of the water = 0.1 kg

weight of the bucket = 5 kg

weight of the rope = $2*10- 2x\\\\$

= $20- 2x$

Leakage = $\frac{0.1}{10} * x$

= $0.01 x$

Total weight = $5 + 20 - 2x - 0.01 x$

= $25 - 2.01 x$

Force = wg

Force = ( $25 - 2.01 x$ )g

Force = 9.8 ( $25 - 2.01 x$ )

Finally; the amount of work spent in lifting the bucket, rope, and water is calculated as follows:

$W = \int\limits^{10}_0 {(25-2.01 x)} \, 9.8 dx \\\\W = 9.8 (25x - \frac{2.01x^2}{2}})^{10}__0\\\\$

$W = 9.8 (25*10-2.01*50)\\\\W = 1465.1 \ \ J$

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4 years ago

Describe how the medium through which a sound wave travels affects properties of the sound wave

Rus_ich [418]

Mechanical waves transfer energy by vibrating particles. The closer the particles are to eachother, the easier it is to vibrate them. So it would be easier for sound to travel through solids than gases or liquids.

5 0

4 years ago