Answer:
-611.32 N/C
0.43723 m
Explanation:
k = Coulomb constant = 
q = Charge = -4.25 nC
r = Distance from particle = 0.25 m
Electric field is given by
The magnitude is 611.32 N/C
The electric field will point straight down as the sign is negative towards the particle.
The distance from the electric field is 1.71436 m
If iron were used to make coins then it would rust easily,because of its exposure to water, air etc..
Answer:
Hello There!!
Explanation:
The answer is A. electromagnetic.
hope this helps,have a great day!!
~Pinky~
C) No valid conclusion is suggested by these observations.
Explanation:
From the experiment, no valid conclusion can be drawn from the observations.
The tests are simply based on heat loss by a material.
- In conduction, heat is lost by contact between materials in which heat flows from one to another.
- Convection is a form of heat loss in which heat flows by density in fluids
- The test carried out does not provide proof and comparison between heat loss by conduction and convection.
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