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cupoosta [38]
3 years ago
10

a milk carton filled with water is hanging from a string. what will happen if you punch two holes in opposite sides of the carto

n at the opposite corners?
Physics
1 answer:
marin [14]3 years ago
3 0
When you punch holes in opposite corners of a milk carton filled with water which is hanging from a string, water will start to flow outside with a certain force. There will be a reaction equal and opposite to this force that will make the milk carton start to spin.

This is a typical example of water turbine that is used to demonstrate the third Newton's law.
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3 years ago
A negative charge -Q is placed inside the cavity of a hollow metal solid. The outside of the solid is grounded by connecting a c
tester [92]

Answer:

a)  + Q charge is inducce that compensates for the internal charge

b) There is no excess charge on the external face q_net = 0

c) E=0

Explanation:

Let's analyze the situation when a negative charge is placed inside the cavity, it repels the other negative charges, leaving the necessary positive charges to compensate for the -Q charge. The electrons that migrated to the outer part of the sphere, as it is connected to the ground, can pass to the earth and remain on the planet; therefore on the outside of the sphere the net charge remains zero.

With this analysis we can answer the specific questions

a)  + Q charge is inducce that compensates for the internal charge

b) There is no excess charge on the external face q_net = 0

c) If we create a Gaussian surface on the outside of the sphere the net charge on the inside of this sphere is zero, therefore there is no electric field, on the outside

d) If it is very reasonable and this system configuration is called a Faraday Cage

e) We cannot apply this principle to gravity since there are no particles that repel, in all cases the attractive forces.

3 0
3 years ago
Potassium hydroxide (KOH) and hydrochloric acid (HCl) react in a beaker. They form potassium chloride (KCl) and water (H2O). Wha
strojnjashka [21]

Potassium hydroxide (KOH) and hydrochloric acid (HCl) react in a beaker. They form potassium chloride (KCl) and water (H2O). This type of reaction is a double replacement reaction wherein the two principal reactants exchange after the reaction. The Cl will combine to the K forming KCl and the H will add to the OH forming H2O.

3 0
3 years ago
Read 2 more answers
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