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Harlamova29_29 [7]
3 years ago
10

Why are metals so much better at conducting than other solids

Physics
1 answer:
Over [174]3 years ago
5 0

Answer:

Explanation:

Metals are by far better conductors of electricity than most solids because individual atoms in a metal form a matrix which their outer electrons can move freely. These atoms form a "sea" of electrons that surrounds the positively charged atomic nuclei of the interacting metal ions.

Solids are usually rigid substances with their atoms in a fixed place unable to move freely.

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Does hot water always freeze faster than cold water
svp [43]
Yes because there is more temperature to cover in terms of hot water turning into cold and then solid water, and therefore hot water cools down faster, whereas cold water will take more time to become solid.
8 0
3 years ago
Read 2 more answers
An athlete runs 200 m by running 100 m in a straight line and then turning around and running 100m back to the start point.
siniylev [52]

Answer:

o

Explanation:

The athlete ran a total distance of zero because they ran 100m forward then turned around so they went back to their starting position

6 0
3 years ago
A child with a mass of 23 kg rides a bike with a mass of 5.5 kg at a velocity of 4.5 m/s to the south. Compare the momentum of t
serg [7]

Answer:

Explanation:

Given the following data;

Mass of child = 23 kg

Mass of bike = 5.5 kg

Velocity = 4.5 m/s

Momentum can be defined as the multiplication (product) of the mass possessed by an object and its velocity. Momentum is considered to be a vector quantity because it has both magnitude and direction.

Mathematically, momentum is given by the formula;

Momentum = mass * velocity

To find the momentum of each of them;

I. Momentum of the child

Momentum C = mass * velocity

Momentum C = 23 * 4.5

Momentum C = 103.5 Kgm/s

II. Momentum of the bike

Momentum B = mass * velocity

Momentum B = 5.5 * 4.5

Momentum B = 24.75 Kgm/s

Hence, we can deduce from the calculations that the momentum of the child is greater than that of the bike because of the higher mass possessed by the child.

4 0
3 years ago
As a tractor pulls a plow across a field, it exerts a force on the plow in the forward direction. What is the "equal and opposit
Karolina [17]

Answer:

the force of the plow pulling backward on the tractor

Explanation:

7 0
3 years ago
How do you find the voltage of a section of a parallel circuit?
sergiy2304 [10]

Answer: Voltage is the same across each component of the parallel circuit. The sum of the currents through each path is equal to the total current that flows from the source. You can find total resistance in a Parallel circuit with the following formula: 1/Rt = 1/R1 + 1/R2 + 1/R3 +.

Hope this helps!

3 0
3 years ago
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