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3 years ago

This is an electrical device that changes the voltage of electricity through the use of two set of coils

Physics

2 answers:

mario62 [17]3 years ago

8 0

Answer:

The correct answer is a (TRANSFORMER). Trust me

Explanation:

Fynjy0 [20]3 years ago

3 0

Voltmeter is the right answer

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sergij07 [2.7K]

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2 years ago

A radio signal takes 1.28 s to travel from a transmitter on the Moon to the surface of Earth. The radio waves travel at 3.00108

yulyashka [42]

Answer:

s = 3.84 x 10⁸ m

Explanation:

The distance traveled by an object, while in uniform motion, is given by the following equation:

s = vt

where,

s = distance covered

v = speed

t = time interval

In this case:

s = distance between Moon and Earth = ?

v = speed of radio waves = 3 x 10⁸ m/s

t = time taken to travel = 1.28 s

Therefore,

s = (3 x 10⁸ m/s)(1.28 s)

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3 years ago

The capacitance of a Pt-n-type GaAs Schottky diode is given by 1 (C(μF))2 = 1.0 × 105 − 2.0 × 105 V The diode area is 0.1 cm2. C

Cerrena [4.2K]

Answer:

built in potential Vbi = +0.5V

barrier height = 0.139 V

doping concentration = 5.39 × 10²³cm³

Explanation:

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3 years ago

Look at the vector r plotted below

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2 years ago

A 23.0 kg bucket of water is suspended by a very light rope wrapped around a solid uniform cylinder 0.300 m in diameter with mas

nevsk [136]

Answer:

The tension in the rope is 49.66 N.

Explanation:

Given that,

Mass of bucket m= 23.0 kg

Diameter = 0.300 m

Mass of rope M= 13.0 kg

Height = 10.5 m

Suppose we need to find the tension in the rope while the bucket is falling.

We need to calculate the acceleration

Using balance equation

$mg-T=ma$ ..(I)

We need to calculate the tension in the rope

Using formula of tension

$Tr=I\alpha$

$Tr=\dfrac{Mr^2}{2}\times\dfrac{a}{r}$

$T=\dfrac{Ma}{2}$ ....(II)

Put the value of T in the equation (I)

$mg-\dfrac{Ma}{2}=ma$

$a=\dfrac{mg}{m+\dfrac{M}{2}}$

Put the value into the formula

$a=\dfrac{23.0\times9.8}{23.0+\dfrac{13.0}{2}}$

$a=7.64\ m/s^2$

Now, put the value of a in equation (II)

$T=\dfrac{13.0\times7.64}{2}$

$T=49.66\ N$

Hence, The tension in the rope is 49.66 N.

5 0

2 years ago