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timurjin [86]
2 years ago
13

Using the graph, predict how many paper clips a 7.5 V battery would pick up for both the 25-coil electromagnet and the 50-coil e

lectromagnet. Explain your reasoning for your prediction.
Physics
1 answer:
Svet_ta [14]2 years ago
5 0
NOTE: The strength of an electromagnet is directly proportional to not only the current but the number of windings. Doubling the number of windings doubles the strength of the magnet.
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Drinking water helps your body maintain
8090 [49]

Drinking water helps maintain nearly all processes of the human body and <em>homeostasis. </em>Further, drinking water helps,

  • Digestion
  • Absorption
  • Circulation
  • Saliva and mucus production
  • Thermoregulation/homeostasis
  • Lubrication of joints
  • Boosts integumentary health.
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  • Prevents dehydration of cells
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Succinctly, it is VERY important to drink water! Water is the source of human life and without water, we cannot survive.

6 0
3 years ago
in a railyard a train is being put together from freight cars.An empty freight car coasting 10 m/s strikes a loaded car that is
svetoff [14.1K]

Answer:m1v1 + m2v2 = (m1f + m2f)vf. 3000kg(10.0m/s) + (15000kg)(0.0m/s) = (18000kg)(vf).

Explanation:

7 0
2 years ago
3. What conclusion can you make about the electric field strength between two parallel plates? Explain your answer referencing P
KIM [24]

Answer:

From the relation above we can conclude that the  as the distance between the two plate increases the electric field strength decreases

Explanation:

I cannot  find any attached photo, but we can proceed anyways theoretically.

The electric field strength (E) at any point in an electric field is the force experienced by a unit positive charge (Q) at that point

i.e

E=\frac{F}{Q}

But the force F

F= \frac{kQ1Q2}{r^2}

But the electric field intensity due to a point charge Q at a distance r meters away is given by

E= \frac{\frac{kQ1Q2}{r^2}}{Q} \\\\\E= \frac{Q1}{4\pi er^2 }

<em>From the relation above we can conclude that the  as the distance between the two plate increases the electric field strength decreases</em>

6 0
3 years ago
A block of wood weighs 160 N and has a specific gravity of 0.60. To sink it in fresh water requires an additional downward force
AysviL [449]

Answer:

Your answer is: D) 110N

Hope this helped : )

Explanation:

In order for the wood to sink, it's specific gravity must equal 1 (or greater).

Specific gravity = .6 kg/m^3= Mass/volume

F (Newtons or kg x m/s^2) = Mass*9.8m/s^2.  

Therefore, Mass = 160 N / 9.8 m/s^2= 16.32 kg

Volume = Mass/Specific Gravity = 16.32kg/.6 kg/m^3 = 27.2 m^3

Desired Specific gravity = 1 = (Mass + additional force/9.8m/s^2)/Volume = (16.32 kg +X / 9.8m/s^2)/27.2m^3

Solving for the additional force: X = 106.66...N

The answer is D, 110 N will be required to sink the block of wood.

5 0
3 years ago
Which is an example of a wedge?<br> a. bowl<br> b. spoon<br> c. fork<br> d. knife
elixir [45]
The answer is d.... Knife.

Hope this helped :)
3 0
3 years ago
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