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eduard
4 years ago
13

you must exert a force of 4.5 N on a book to slide it across a table. If you do 2.7 j of work in the process, how far have you m

oved the book?
Physics
2 answers:
motikmotik4 years ago
7 0

             Work  =  (force) x (distance)

      2.7 Joules  =  (4.5 N) x (distance)

         distance  =  2.7 J / 4.5 N 

                       =   0.6 meter           
wolverine [178]4 years ago
5 0
Work done (energy) = force * distance

So: distance = work done / force

= 2.7 / 4.5

= 0.6m
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Answer:

true 1Ay 2D

Explanation:

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B) False. Pressing the brick against the surface increases the normal and as the friction is proportional to the normal, it also increases

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3 0
3 years ago
I only need help with the two bottom questions! Please help though!!!
kompoz [17]
If the rabbits died out, the other organisms would be likely to die. (If that were their main source of food.)

producer- something that produces food for other organisms (and is consumed). ex.grass

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3 0
4 years ago
A mass of 1 kg is moving in a circle of radius 3.3 meters. What is the liner velocity v m/s that would give a Centripetal Force
Ghella [55]

Answer:

The linear velocity of the object is 8.71 m/s.

Explanation:

Given;

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F_c = \frac{mv^2}{r}\\\\

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F_c = \frac{mv^2}{r}\\\\mv^2 = F_cr\\\\v^2 = \frac{F_cr}{m}\\\\v= \sqrt{\frac{F_cr}{m}} \\\\v= \sqrt{\frac{23*3.3}{1}}\\\\v = 8.71 \ m/s

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4 0
3 years ago
A 4.00kg counterweight is attached to a light cord, which is would around a spool. The spool is a uniform solid cylinder of radi
Sergio [31]

Answer:

Explanation:

Given that,

Mass of counterweight m= 4kg

Radius of spool cylinder

R = 8cm = 0.08m

Mass of spool

M = 2kg

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6 0
4 years ago
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How should the magnetic field lines be drawn for the magnets shown below?
sergeinik [125]

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<h3>What is Magnetic Line of Force ?</h3>

The Magnetic Line of Force of a magnet is defined as the line along which a free N - pole would tend to move if placed in the field of a line such that the tangent to it at any point gives the direction of the field at that point.

When the two unlike poles are placed to each other, there will be attraction. And when the two like poles are placed to each other, there will be repulsion. The reason is that the line of force tend to move from the north pole to the south pole.

From the given diagram, the two magnets are of the same south pole. They are of like pole and there will be repulsion between the two magnets.

Therefore, Option B is the correct answer that show how magnetic field lines should be drawn for the magnets shown in the figure.

Learn more about Magnetic Field Lines here:  brainly.com/question/17011493

#SPJ1

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2 years ago
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