1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
PilotLPTM [1.2K]
3 years ago
7

Metals are good conductors of electricity because they _________

Physics
1 answer:
Gnesinka [82]3 years ago
6 0

Metals are good conductors because the molecules that are inside the metal are tightly packed together. This is why the heat moves through the metal quickly.

You might be interested in
2. Two identical conducting spheres are placed with their centers 0.30 m apart. One is given a charge of 12 x 10-9 C and the oth
Maru [420]

Answer:

A. -2.16 * 10^(-5) N

B. 9 * 10^(-7) N

Explanation:

Parameters given:

Distance between their centres, r = 0.3 m

Charge in first sphere, Q1 = 12 * 10^(-9) C

Charge in second sphere, Q2 = -18 * 10^(-9) C

A. Electrostatic force exerted on one sphere by the other is:

F = (k * Q1 * Q2) / r²

F = (9 * 10^9 * 12 * 10^(-9) * -18 * 10^(-9)) / 0.3²

F = -2.16 * 10^(-5) N

B. When they are brought in contact by a wire and are then in equilibrium, it means they have the same final charge. That means if we add the charges of both spheres and divided by two, we'll have the final charge of each sphere:

Q1 + Q2 = 12 * 10^(-9) + (-18 * 10^(-9))

= - 6 * 10^(-9) C

Dividing by two, we have that each sphere has a charge of -3 * 10^(-9) C

Hence the electrostatic force between them is:

F = [9 * 10^9 * (-3 * 10^(-9)) * (-3 * 10^(-9)] / 0.3²

F = 9 * 10^(-7) N

7 0
3 years ago
Plzzzzzzzzzzzzzzzzz help
makkiz [27]

Answer:

a or b

Explanation:

3 0
2 years ago
If distance between two charges increased 5 times then force between them
Marrrta [24]

decreased 5 times

Explanation: if the force increases 5 times between them would decrease 5 times

4 0
3 years ago
What part of a thunderstorm kills the most people each year?
alexandr1967 [171]
Here is the answer. The part of a thunderstorm that kills the <span> most people each year is the LIGHTNING. Thunder is only the sound created and will not hurt anyone, but it is the lightning that can kill anyone who will be struck by it. Hope this answers your question. Have a great day!</span>
5 0
3 years ago
Read 2 more answers
What force must act on a 50.0-kg mass to give it an ancceleration of 0.30 m/s^2?
ratelena [41]

Answer:

15.0 N

Explanation:

see pic

3 0
2 years ago
Other questions:
  • An ideal parallel-plate capacitor consists of a set of two parallel plates of area a separated by a very small distance
    7·1 answer
  • Nearly all the light that strikes an opaque object will pass through and cast a shadow
    14·2 answers
  • Once a satelite has entered a stable orbit round earth why does it not need fuel?
    14·1 answer
  • A 1230 kg pile driver is used to drive a steel I-beam into the ground. The pile driver falls 7.07 m before contacting the beam,
    15·1 answer
  • An 19-cm-long bicycle crank arm, with a pedal at one end, is attached to a 23-cm-diameter sprocket, the toothed disk around whic
    15·1 answer
  • The rate of doing work is called _____.<br> power<br> force<br> energy<br> inertia
    8·2 answers
  • The volume of water in a measuring cylinder is 50 ml. When a piece of stone is immersed
    8·1 answer
  • An air capacitor is made by using two flat plates, each with area A, separated by a distance d. Then a metal slab having thickne
    6·1 answer
  • Q. Tom and Zoe make a string telephone. They use two empty tin cans joined by a piece of string. Tom and Zoe are 5 m apart. Tom
    14·1 answer
  • A spring has an unstretched length of
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!