PHYSICS MIDDLE SCHOOL

When a bar magnet is broken into two pieces each piece has a north and south pole becausea
the magnetic fields reversed

b
every magnet is made of many aligned smaller magnets

с
bar magnets are permanent magnets

d
the magnetic poles have been isolated

Answers

Answer 1
Answer:

Answer:

b

every magnet is made of many aligned smaller magnets

Explanation:

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Two identical space probes are orbiting Jupiter. Scientists determine that one of the space probes has a larger gravitational force acting on it than the other. which of the following is the most likely reason for the difference?A. One space probe reached Jupiter before the other. B. One space probe has more air resistance than the other. C. Only one space probe is exerting a gravitational force on the other. D. One space probe is closer to Jupiter than the other
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According to Kinetic Molecular Theory, which state of matter has the most kinetic energy?A- Gas
B- Solid
C- Liquid

Answers

A-gas because the molecules would be apart and would move faster

For Future Students The Answer is A- Gas I can confirm this is the answer because I took the test. Hope this helped.

A graduated cylinder is filled to an initial volume of 12.7 ml. A rock Is dropped into the graduated cylinder. The final volume of the graduated cylinder is 18.2ml. What is the Rocks volume in both ml and cm3? What method was used to determine this?

Answers

Answer:

V = 5.5 mL

Explanation:

The volume filled in the graduated cylinder is 12.7 mL

now when a stone is dropped into the cylinder then the volume of liquid is raised to final level of 18.2 mL

so as per the theory of given by Archimidies we can say that the volume of the object is exactly same as the volume displaced by the object

So here the volume displaced by the object is given as

V_(displaced) = V_f - V_i

V_(displaced) = 18.2 mL - 12.7 mL

V_(displaced) = 5.5 mL

so the volume of the object is given as

V = V_(displaced)

V = 5.5 mL
First of all, ml and cm^3 are equal. The volume of the rock is 5.5 ml. This is found by subtracting the volume of just the water from the combined volume of the rock and the water leaving you with just the volume of the rock. This is method is using water displacement.

Jenny puts a book on her desk. she lifts the book up with her finger, using a force of 0.5N .The cover is 10cm wide .calculate the turning moment on the cover of the book

Answers

The turning moment on the cover of the book is 0.05 Nm.

Explanation:

Given:

Force applied (F) = 0.5 N

Distance covered (d) = 10 cm

Converting Distance covered from cm to meter we get (d)= 0.1 m

To find:

Turning Moment (M) on the cover of the book = ?

Formula to be used:                                    

Turning Moment (M) = F × d

                                  = 0.5 × 0.1

                                   = 0.05 Nm

Thus the turning moment on the cover of the book is found to be 0.05 Nm

Column A is in the x-axis, and column B is on the y-axis. Which titles should replace A and B

Answers

Column A: x-axis, input, domain

Column B: y-axis, output, range

Those are other ways to describe them

hope i helped:)

Describe each of the three types of hazardous weather forecasts

Answers

Well, there can be a tornado that is very severe when hot and cold air mixes making air swirl and create a triangular shaped spinning air. There are lightning storms when lightning bolts come from the sky, and there are hurricanes when there are lots of rain coming towards your way due to change in climate such as global warming, it often occurs in humid places.

Is the earth getting heavier

Answers

Yes. Earth gets bigger every year. This cumbersome everyday mass accumulation can be charged toward nearly 100 weights of stars penetrating the Earth’s environment per day. 
Naturally yes, gravity plus the ever-increasing growing population of living organisms (human beings, animals, bugs, and etc.). Hope this helps!
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