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Alina [70]
3 years ago
6

A material that provides little or no resistance to the flow of electric current is called a/an

Physics
2 answers:
zhenek [66]3 years ago
5 0
I think the correct answer from the choices listed above is option B. <span>A material that provides little or no resistance to the flow of electric current is called a conductor since a conductor function to let electricity flow so it should have less resistance.</span>
GarryVolchara [31]3 years ago
3 0
Conductor .......................
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Two people are standing on a 2.50-m-long platform, one at each end. The platform floats parallel to the ground on a cushion of a
trasher [3.6K]

Answer:

The platform move before coming to rest again 0.045 m far

Explanation:

Given

Ball is in motion

M (Platform mass + 2 people mass)

V (recoil velocity of the platform)

m (ball mass)

v (velocity ball)

MV + mv = 0

Distance of the platform movement is

t (time that the ball is in the air)

x = Vt

t = \frac{L}{v - V}

Knowing the platform and the ball are moving while the ball is in the air

x = \frac{V}{v - V} * L

Also knowing that

\frac{V}{v} = \frac{-m}{M}

This way,

x = ((\frac{V}{v}) * L) / (1 - \frac{V}{v}) = -\frac{m*L}{M + m} = -\frac{3.63 kg * 2.50 m}{198 kg + 3.63 kg}  = -0.045 m

The minus sign means the displacement of the platform is in opposite direction to the displacement of the ball.

6 0
3 years ago
Plz help owo
4vir4ik [10]

Answer:

They are caused by outward fluctuations of the sun's magnetic field.

They tend to occur during active periods of the solar cycle.

Explanation:

While sun spots will appear darker than the surrounding surface, flares will tend to appear brighter. CME's are associated with massive flares.

3 0
2 years ago
K20+H2O how many total oxygen atoms are there
kakasveta [241]
I think there would be 2 oxygen atoms,
If h2o is two hydrogen atoms and 1 oxygen atom then h2o has 2 potassium atoms and 1 oxygen atom, if you were to add them then together it would have 2 oxygen atoms, plz if I'm wrong correct me
8 0
3 years ago
The process of bone formation from fibers or cartilage is called
frosja888 [35]
This is called appositional growth.


Mark as brainliest
7 0
3 years ago
Read 2 more answers
A car drives on a circular road of radius R. The distance driven by the car is given by = + [where a and b are constants, and t
pishuonlain [190]

Answer:

The question is incomplete, the complete question is "A car drives on a circular road of radius R. The distance driven by the car is given by d(t)= at^3+bt [where a and b are constants, and t in seconds will give d in meters]. In terms of a, b, and R, and when t = 3 seconds, find an expression for the magnitudes of (i) the tangential acceleration aTAN, and (ii) the radial acceleration aRAD3"

answers:

a.18a m/s^{2}

b. a_{rad}=\frac{(27a +b)^{2}}{R}

Explanation:

First let state the mathematical expression for the tangential acceleration and the radial acceleration.

a. tangential acceleration is express as

a_{tan}=\frac{d|v|}{dt} \\

since the distance is expressed as

d=at^{3}+bt

the derivative is the velocity, hence

V(t)=\frac{dd(t)}{dt}\\V(t)=3at^{2}+b\\

hence when we take the drivative of the velocity we arrive at

a_{tan}=\frac{dv(t)}{dt}\\ a_{tan}=6at\\t=3 \\we have \\a_{tan}=18a m/s^2

b. the expression for the radial acceleration is expressed as

a_{rad}=\frac{v^{2}}{r}\\a_{rad}=\frac{(3at^{2} +b)^{2}}{R}\\t=3\\a_{rad}=\frac{(27a +b)^{2}}{R}

4 0
3 years ago
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