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Svetach [21]
3 years ago
9

Which are ways to improve the design of this experiment? Check all that apply.

Physics
2 answers:
krok68 [10]3 years ago
8 0

Answer:

b   d      e  

Explanation...................................

Arte-miy333 [17]3 years ago
3 0

Answer:

* Experiment with a higher range of materials

* Use a galvanometer.

* Vary in number of coils of the electromagnet

Explanation:

This is an experiment of electricity and magnetism, in general the best way to improve the results are:

* Experiment with a higher range of materials

   allowing to know the scope of the initial assumptions

* Use a galvanometer.

  The more accurate the readings the error of the derived quantities is the less which will improve the precision of the experiment.

* Vary in number of coils of the electromagnet

  Since it allows to have greater magnetic fields and therefore expand the range of measurements

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A pulley requires you to pull 3 times the amount of rope in order to lift an object. Therefore, the mechanical advantage is ____
RideAnS [48]
<h3>Answer:</h3>

1

<h3>Explanation:</h3>
  • A pulley is an example of a simple machine that is made up of ropes and wheels.
  • Mechanical advantage refers to the number of times that a simple machine multiplies the input force.
  • This means if a simple machine has a mechanical advantage of 5 then it means that it made the work done 5 times easier than without it.
  • It also means that one would apply 1/5 times the force they would have applied without the machine.
  • In this case, the pulley which is a simple machine requires you pull 3 times the amount of the rope. Therefore, the mechanical advantage of the machine is 1, which means the output force is equal to the input force.
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3 years ago
What is the mass of a bowling ball if it has a weight of 80N?
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What is the speed of a wave that has a frequency of 45 Hz and a wavelength of 0.1 meters?
Yuri [45]
<span>λν=c
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Two tiny, spherical water drops, with identical charges of −8.00 ✕ 10^(−17) C, have a center-to-center separation of 2.00 cm.
Damm [24]

Answer:

F=1.4384×10⁻¹⁹N

Explanation:

Given Data

Charge q= -8.00×10⁻¹⁷C

Distance r=2.00 cm=0.02 m

To find

Electrostatic force

Solution

The electrostatic force between between them can be calculated from Coulombs law as

F=\frac{kq^{2} }{r^{2} }

Substitute the given values we get

F=\frac{(8.99*10^{9} )*(-8.00*10^{-17} )^{2} }{(0.02)^{2} }\\ F=1.4384*10^{-19} N

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3 years ago
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solong [7]

Answer:

100Kg.m/s

Explanation:

From the question, we obtained the following information:

M= Mass = 25kg

V = Velocity = 4m/s

Momentum =?

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