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Sunny_sXe [5.5K]
3 years ago
13

When steam condenses 1. All of these occur. 2. None of these occur. 3. molecules move closer together. 4. it changes from the ga

s phase to the liquid phase. 5. it gives off heat.
Physics
2 answers:
Karo-lina-s [1.5K]3 years ago
6 0

When steam condenses, molecules move closer together, it changes from the gas phase to the liquid phase, and it gives off heat.  So if that's the whole list, then ALL of these occur. ( choice-1 )

True [87]3 years ago
5 0

2. None of these occur

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A pendulum oscillates 12 times in 4 seconds. what is the length of the pendulum?
seraphim [82]

Answer:

L = 2.8 cm

Explanation:

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T = 2π√(L/g)

L = (T/2π)²g

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2 years ago
What is the relationship between the poles of a magnet? which direction does the magnet field move?
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pashok25 [27]
The answer should be D
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The near point of an eye is 56.0 cm. A corrective lens is to be used to allow this eye to focus clearly on objects at the distan
irakobra [83]

Answer:

Explanation:

Near point = 56 cm .

near point of healthy person = 25 cm

person suffers from long sightedness

convex lens will be required .

object distance u  = 25 cm

image distance   v = 56 cm

both will be negative as both are in front of the lens.

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I/v - 1 / u = 1/f

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- .01785 + .04 = 1/f

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4 0
3 years ago
One hundred turns of insulated copper wire are wrapped into a circular coil of crosssectional area 1.20⇥103 m2. The two ends of
arsen [322]

Answer:

236.3  x 10^-^3 C

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B(0)=1.60T and B(t)=-1.60T

No. of turns 'N' =100

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ℰ=-NdΦ/dt

The current given by resistance and induced emf as

I = ℰ/R

I= -NdΦ/dtR

By converting the current to differential form(the time derivative of charge), we get

\frac{dq}{dt}=  -NdΦ/dtR

dq= -N dΦ/R

The change in the flux dФ =Ф(t)-Ф(0)

therefore, dq = \frac{N}{R} (Ф(0)-Ф(t))

Also, flux is equal to the magnetic field multiplied with the area of the coil

dq = NA(B(0)-B(t))/R

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dq= 236.3  x 10^-^3 C

5 0
3 years ago
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