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FromTheMoon [43]
3 years ago
8

What happens when an object with a lower density is placed in a container with an

Physics
1 answer:
maksim [4K]3 years ago
5 0
The only thing that definitely happens in every such case is:
The container becomes heavier.
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Why did the author most likely write "Meeting Juli a
svet-max [94.6K]

Answer:

To share a positive experience she had with a pen pal

Explanation:

Just read the story :)

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3 years ago
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The data table shows the cause of unintentional death for various age groups; what can you infer about the 15-24 age group?
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Answer:

D) They most likely died from not wearing a seatbelt.

Explanation:

Their death was caused by a "motor vehicle" (that's what MV stands for in this case). The most logical answer would be D.

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Protons in an atomic nucleus are typically 10−15 m apart. what is the electric force (in n) of repulsion between nuclear protons
dybincka [34]
<span>The electric force is given by: 
 F = [ k*(q1)*(q2) ] / d^2 
 F = Electric force 
 k = Coulomb's constant 
 q1 = Charge of one proton 
 q2 = Charge of second proton 
 d = Distance between centers of mass 
 Values: 
 F = unknown 
 k = 8.98E 9 N-m^2/C^2 
 q1 = 1.6E-19 
 q2 = 1.6E-19 
 d = 1.0E-15 m 
 Insert values into F = [ k*(q1)*(q2) ] / d^2 
 F = [ (8.98E 9 N-m^2/C^2) * (1.6E-19) * (1.6E-19) ] / (1.0E-15 m)^2 
 F = </span>229.888 N
 answer
 the electric force of repulsion between nuclear protons is 229.888 N

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3 years ago
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An object is hanging by a string from the ceiling of an elevator. The elevator is moving upward with a constant speed. What is t
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Answer:

Equal to the weight of the object

Explanation:

There are two forces acting on the object hanging on the string:

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- The weight of the object, mg, acting downward

We can write Newton's second law as:

T-mg=ma

where a is the acceleration of the object.

Here we are told that the elevator is moving at constant speed: this means that the acceleration of the object is zero, therefore a = 0 and the equation becomes

T=mg

therefore, the tension in the string is equal to the weight of the object.

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Jess wants to make her house more energy efficient. She has two options, A or B. Option A is double-glazing her patio doors, whi
pychu [463]
B is the better long term option
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