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Ahat [919]
4 years ago
5

What is a nonmetallic material in terms of electricity?

Physics
1 answer:
AfilCa [17]4 years ago
6 0
I'd say an insulator


Hope this helps!!!
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The difference in potential between the cathode and anode of a spark plug is 14700 v. what energy does the electron give up as i
Verdich [7]
The energy the electron gives up passing between the electrodes is equal to the product between its charge and the potential difference between the electrodes:
\Delta U = e \Delta V
where 
e is the electron charge
\Delta V is the potential difference

Plugging numbers into the equation, we find that the electron gives up is
\Delta U = (1.6 \cdot 10^{-19} C)(14700 V)=2.35 \cdot 10^{-15} J
8 0
4 years ago
A police officer measures a straight skid mark on the road of length d=20m. the car involved is stationary at the end of the ski
zvonat [6]
80 divided by 20 is 2
8 0
3 years ago
Can one individual represent and entire population? Why or why not
zubka84 [21]

Answer:

Explanation:

A representative does his/her utmost to convey the feelings of the majority of the group they speak for, and stands up for their interests. This might be for negotiation, voting, litigation, diplomacy, etc.  

A leader, ideally, inspires their constituents and brings out the best in them, as in strength, ethics, spirituality, and so on.  

Short version: a rep is an agent or conduit. A leader is a catalyst. Either job can be hard. And yes, it can be done for most of a population. Maybe not all, but not everyone can fit into the same mold.

8 0
3 years ago
A person jumps from the roof of a house 3.5-m high. When he strikes the ground below, he bends his knees so that his torso decel
Korvikt [17]

The force exerted on his torso by his legs during the deceleration is 4365 N.

<u>Explanation:</u>

Mass of the torso m=45kg

Height of the building s=3.5 m

Decelerating distance=0.71 m

when he jumps to the ground, the only acceleration is acceleration due to gravity g

<u>motion1 from top to ground </u>

initial velocity u=0

we have to calculate final velocity v using the following equation of motion.

v^2-u^2=2gs\\v^2-0^2=2\times 9.8\times3.5=68.6\\v=\sqrt{68.6} \\=8.3

use height of the building as the distance s as the jump from top to the ground is only described here.

<u>Motion 2 on the ground</u>

v=0

u=8.3(final  velocity of motion 1)

The deceleration after striking the ground can  be calculated from the equation of motion

v^2-u^2=2as\\\\a=v^2-u^2/2\times 0.71\\=0^2-8.3^2/0.71=97 m/s^2

The decelerating distance is used in the place of s since since the motion after hitting the ground is described in this case.

The equation of force is

F=ma\\=45\times 97=4365 N

6 0
3 years ago
A concave mirror produces a real image 1cm tall of an object 2.5mm tall placed 5cm from the mirror. Find the position of the ima
Cloud [144]

Answer:

the focal length is 4cm

Explanation:

use the formula 1+1/m = f

it is obtained from the mirror formula

m is the magnification and is the ratio of the image height to the object height

however they should have the same unit . that means you would have to do a little conversion from cm to mm or vice versa .

4 0
3 years ago
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