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3 years ago

Jason makes a graphic organizer for insulators and conductors and wants to add the following labels to it.

Physics

2 answers:

FrozenT [24]3 years ago

7 0

Jason should place the regions in:

C) Label 1: X

Label 2: Z

MA_775_DIABLO [31]3 years ago

4 0

Answer: C) Label 1: X

Label 2: Z

Explanation: Conductors are those substances which conduct electrical current easily because of the presence of free electrons whereas Insulators do not conduct electrical current as they do not contain free electrons. Some common examples of conductors are copper, aluminum, gold, and silver. Some common examples of insulators are glass, air, plastic, rubber, and wood.

Label 1: Lacks free electrons must be placed in the area marked X as they correspond to insulators.

Label 2: Aluminum is an example of conductor and thus must be labelled in area marked by Z.

Area Y corresponds to semiconductors which have properties intermediate to conductors and insulators.

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A rock is dropped from a vertical cliff. The rock takes 3.00 s to reach the ground below the cliff. A second rock is thrown vert

Phantasy [73]

Answer:

Velocity v= 12.25 $\frac{m}{s}$

Explanation:

The first rock dropped give the distance Y in meters

$Y_{f}=Y_{o}+v_{o}*t +\frac{1}{2}*a*t^{2}\\ Y_{f}=\frac{1}{2}* 9.8 \frac{m}{s^{2} }* 3^{2} \\Y_{f}=44.1 m$

Now the motion of the second rock the time change so to know the velocity

$Y_{f}= Y_{o} +v_{o}*t +\frac{1}{2}*a *t^{2} \\v_{o}*t= -Y_{f} +\frac{1}{2} *a*t^{2} \\v_{o} =\frac{-44.1 +0.5 * 9.8* s^{2} }{2} \\v_{o}= 12.25 \frac{m}{s}$

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3 years ago

The units of Work, Energy and power are________ ________units.

meriva

Answer:

the units of work and energy is joule and unit of power is Watt

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2 years ago

an oscilloscope has a time/div setting of 50ms and there are 10 divisions on the time scale. a sine wave on the oscilloscope dis

mamaluj [8]

Answer:

The frequency is f = 6Hz

Explanation:

Given

The time division setting is $d_t =50ms = 50*10^{-3}s$

The number of division is $n= 10$

The total time for 10 division can be mathematically obtained as

$T_{total} = 10 *50*10^{-3}$

$=500 *10^{-3}s$

From the question the time for 3 cycle is

$T_{total} = 500*10^{-3}s$

Then the for one cycle which equivalent to the Period $(T)$ $= \frac{T_{total}}{3}$

$= \frac{500 *10^{-3}}{3}$

The frequency is generally given as $f = \frac{1}{period} = \frac{1}{T}$

Now substituting values we have

$f = \frac{3}{500 *10^{-3}}$

$= 6Hz$

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4 years ago

How could I track my running speed without a car or special equipment?

xeze [42]

You could be counting while running

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3 years ago

Read 2 more answers

The threshold of hearing is defined as the minimum discernible intensity of the sound. It is approximately 10âˆ’12w/m2. Find the

Monica [59]

Answer:

The distance d from the car at which the sound from the stereo can still be discerned = 97720.5 m

Explanation:

Sound intensity heard at distance is related to the distance with the relation = (power of sound at the source)/(surface area of the wall of an imaginary sphere at the distance in question)

I = P/4πd²

Assuming the car has 2 speakers,

P = 0.06 W × 2 = 0.12 W

d = ?

For the intensity of the least discernible sound,

I = 10⁻¹² W/m²

10⁻¹² = 0.12/4πd²

d = 97720.5 m

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3 years ago