PHYSICS MIDDLE SCHOOL

When polarizing an object, what happens to the charges in the object?A. They swirl about like bees in a hive.
B. They separate, with positive charges on one side and negative
charges on the other.
C. The protons drain off, leaving the object negatively charged.
D. They repel each other and spread out all around the outer surface.

Answers

Answer 1
Answer:

Answer:

B. They separate, with positive charges on one side and negative

charges on the other.

Explanation:

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A charged particle creates a(n) _____________field. Once this particle is in motion, this creates a(n) ____________ field.

Answers

A charged particle has an electrostatic field surrounding it.

When the particle is in motion, the moving charge is an
electric current, and that has a magnetic field around it.

Sometimes rock has both large and small mineral crystals.How can you explain this?

Answers

Well, different rocks may have gone through different geologic processes. For example, rocks that have undergone lots and lots of heat and pressure may have different size grains than rocks who have undergone lesser amounts of heat and pressure. 
He reason why minerals have different sized crystals is for many reasons. One because crystals grow bigger over time and two some minerals might not be that old. And three some just grow faster than other due to the properties of there surroundings

Stu wanted to calculate the resistance of a light bulb connected to a 4.0-V battery, with a resulting current of 0.5 A. He used the formula R = VI and obtained an answer of 2 . Was Stu’s answer correct? How do you know?

Answers

Answer:

The answer is not correct.

Explanation:

Stu's answer is not correct, the equation to use is known as the law of ohm. In which the voltage is defined as the product of the current by the resistance, then we will see this equation.

V = I*R\nwhere:\nI = current [amp]\nR = resistance [ohm]\nV = voltage [volts]\n

In order to find resistance, this term is found multiplying the current on the right side of the equation, therefore the current will be divided on the left side of the equation.

R=(V)/(I) \nreplacing:\nR=(4)/(0.5) \nR=8[ohms]

That is the reason that the result found by Stu is not correct.

Answer:

Sample Response: Stu's answer was incorrect. According to Ohm's law, R = V/I. This is the equation that should be used to obtain the correct answer, which is 8 ohms.

Explanation:

Please Help MeeeWhat is the total resistance in the circuit depicted? Use R1 = 3.00 Ω, R2 = 9.00 Ω, R3 = 2.00 Ω, R4 = 2.00 Ω, R5 = 6.00 Ω, R6 = 2.00 Ω.

14.5 Ω

24 Ω

12 Ω

17.3 Ω

Answers

Answer:

answer is 24 ohm okkkkkm

When parts of your body functions as lever systems, what part supplies the force?

Answers

Muscles supply the force.  They exert force by getting shorter (contracting).
A muscle can't get longer by itself.  There needs to be another muscle
pulling in the opposite direction.

C is wrong ( currently failing ) Please Help

Answers

The answer has the be the fourth option "the object is not accelerating." By looking at the graph you would see the the velocity is constant meaning it staying the same and its not increasing or decreasing which takes out the first, second, and third option. So, since how the velocity is not increasing the object is not accelerating or the fourth option.

Hope this helps!

sense the time shown is increasing but the velocity is neither increasing or decreasing then the answer would have to be D.
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