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inessss [21]
3 years ago
7

What characteristic does a good conductor possess?

Physics
2 answers:
zimovet [89]3 years ago
5 0
<span>A good conductor have lots of free electrons present in it As due to very less difference between valence band and conductive band so electrons can be easily available for conducting electricity
HOPE IT HELPS:)</span>
Sunny_sXe [5.5K]3 years ago
4 0
Good conductors have free electrons which can conduct electricity really well by having good flow of electrons from positive to negative pole, and good conductors are lustrous, hard, high density, high melting and boiling point and good conductors of heat.
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A suspect is leading the police on a car chase. The officer reports that the suspect is traveling north at 100 miles per hour. T
never [62]
The answer would be velocity because its stating the speed and direction of the car. 
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3 years ago
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What is the speed of a car that travels 150m in 120 s​
katrin2010 [14]

Answer:

1.25 m/s

Explanation:

divide 120 by 120 to get one second and then divide 1t0 by 120 to get the number

3 0
3 years ago
If you know that the rock fell 4.9 m in 1 s , how far did it drop in the first 0.5 s after you dropped it?
klio [65]
When an object is free-falling, no other force is acting upon it but the gravitational force. Because of this, the equations of motion are simplified. We can determine first the initial velocity:

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Then, we use this to the equation below:
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7 0
4 years ago
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What is electric force ​
AysviL [449]

Electric force occurs between positive and negative electric charge. It can be calculated with formula F=\frac{Q_1Q_2}{A\epsilon_0\epsilon_r} where F is force, Q1 and Q2 are charges, A is area of object usually ball (A=4\pi r^2) because we describe charges as points in space like electrons and protons, \epsilon_0 is a natural dielectric constant of empty space or vacuum (\epsilon_0=8.85\times10^{-12}\mathsf{\frac{As}{Vm}}) and \epsilon_r also known as relative dielectric variable.

There are two types of the force:

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8 0
3 years ago
If an electron moves in a circle of radius 21 cm perpendicular to a B field of 0.4 T, what are the speed of the electron and the
kodGreya [7K]

Answer:

a)

v = 4.048 *10^6 m/s

b)  

Angular frequency =  1.92 * 10^7

Explanation:

As we know

v =  \frac{qBr}{m}

q is the charge on the electron = 3.2 * 10^{-19} C

B is the magnetic field in Tesla = 0.4 T

r is the radius of the circle = 0.21 m

mass of the electrons = 6.64 * 10^{-27} Kg

a)

Substituting the given values in above equation, we get -

v = \frac{3.2 * 10^{-19}*0.4*0.21}{6.64 * 10^{-27}} \\v = 4.048 *10^6m/s

b)  

Angular frequency =

\frac{4.048 * 10^6 }{0.21} \\1.92 * 10^7

8 0
3 years ago
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