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malfutka [58]
4 years ago
15

(c)

Physics
1 answer:
lys-0071 [83]4 years ago
7 0
The answer is c. Twelve wants pass an obsessive frequency of the internet
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Once he reach the bottom of the hill he slides across the ground horizontal.it takes him 20 seconds to slow down from his speed
natita [175]

His acceleration is

<em>(-0.05) · (his speed at the bottom of the hill) </em>m/s²

7 0
3 years ago
A meter rule balance on a knife headge at the 55cm mark wheb a mass of 40g from 995cm .find the mass of the meter rule.
umka2103 [35]

Answer:

Let the weight of the ruler be X.

Now X acts in the middle, so we have 55-50 = 50cm

Since left hand movement= right hand movement

X(55-50)=90(95-55)

5X= 90×40

X=320cm

Hence the weight of the ruler is 320g

Explanation:

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3 years ago
The diagram illustrates the movement of sound waves between an observer and a race car. As the race car drives away from the obs
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I believe the answer is d
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3 years ago
What type(s) of energy is/are contained in a roller coaster car after it has come to a complete stop at the station? A. kinetic
blondinia [14]

Answer:

I think it is just potential

Explanation:

If it’s right pls mark the brainliest

7 0
3 years ago
A very long cylinder, of radius a, carries a uniform polarization P perpendicular to its axis. Find the electric field inside th
Juliette [100K]

Answer:

For electric field inside cylinder, check image 02 attached

For electric field outside cylinder, check image 03 attached

Explanation:

Let's consider the polarized cylinder as superposition of two cylinders with opposite,equal, uniform charge densities in a way shown in the figure in the "image 01"d attached ;

In general, if we have an object with polarization (P¬) , then we have to take two objects with similar shape to the system, with opposite, equal, and uniform charge densities and then we super-impose these two objects in such a way that the total dipole moment of this superimposed system is equal to the total dipole moment of original system.

Now, we can take the super- imposed system as equivalent to the original system for calculating electric field and potential.

Therefore,

For the electric field inside the cylinder, check the solution in "image 02" i attached

For the electric field outside the cylinder, check, "image 03" i attached.

4 0
3 years ago
Read 2 more answers
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