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3 years ago

How is a conducter different from an insulater

Physics

2 answers:

Pachacha [2.7K]3 years ago

8 0

Answer:

A conducter will allow electricity to flow through it. An insulator cannot conduct electricity.

koban [17]3 years ago

5 0

Answer:

Condutor is a Material which permits the electric current or heat to pass through it.

insulater a substance which does not readily allow the passage of heat or sound.

Thermal Conductivity of conducter is High.

Thermal Conductivity of insulater is low.

conducter Covalent bond is Weak.

insulater Covalent bond is Strong.

conducter electrons will freely move.

insulater electrons will not freely move.

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In a neutralization reaction a metal and a non-metal are the reactants. True or false.

vlada-n [284]

False...
Acid and base (alkali) are reactants
Acids are basically HYDRATES of non metals and alkalis or bases are metal HYDRATES.

4 0

3 years ago

A rope attached to a truck pulls a 180−kg motorcycle at 9.0m/s.The rope exerts a 400−N force on the motorcycle at an angle of 15

steposvetlana [31]

Answer:

115911.09915 J

Unchanged

Decreased

Explanation:

m = Mass of motorcycle = 180 kg

v = Velocity of motorcycle = 9 m/s

F = Force = 400 N

s = Displacement = 300 m

$\theta$ = Angle above the horizontal = 15°

Work done is given by

$W=Fscos\theta\\\Rightarrow W=400\times 300\times cos15\\\Rightarrow W=115911.09915\ J$

The work done is 115911.09915 J

It can be seen that the force applied is constant so it does not matter if the speed of the motorcycle changes.

Tension on the rope would be

$Fcos\theta-T=ma\\\Rightarrow T=Fcos\theta-ma$

Work done

$W=Ts\\\Rightarrow W=(Fcos\theta-ma)s$

So, the work done would be reduced.

7 0

3 years ago

Can someone tell me the description of the motion of particles of plasma? Please

NNADVOKAT [17]

A plasma is a very good conductor of electricity and is affected by magnetic fields.
Plasma, like gases have an indefinite shape and an indefinite volume.

5 0

3 years ago

Finding the area of a trapezoid on a velocity versus time graph will tell you

julsineya [31]

The answer is c. velocity

6 0

3 years ago

A light-rail commuter train blows its 200 Hz horn as it approaches a crossing. The speed of sound is 339 m/s. (a) An observer wa

ddd [48]

Answer:

a) 30.82 m/s

b) 183.33 Hz

Explanation:

V = speed of the sound = 339 m/s

v = speed of the train = ?

f' = observed frequency by the observer = 220 Hz

f = actual frequency of the observer = 200 Hz

using the equation

$f' = \frac{fV}{V - v}$

$220 = \frac{(200)(339)}{339 - v}$

v = 30.82 m/s

V = speed of the sound = 339 m/s

v = speed of the train = 30.82 m/s

f'' = observed frequency by the observer as train moves away = ?

f = actual frequency of the observer = 200 Hz

using the equation

$f'' = \frac{fV}{V + v}$

$f'' = \frac{(200)(339)}{339 + 30.82}$

f'' = 183.33 Hz

3 0

3 years ago