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Lisa [10]
3 years ago
5

What is the specific heat of silver if the temp ig a 15.4g sample of silver is increased frin 20 degrees celsius to 31.2 degrees

celsius when 40.5 Joules of heat is added?
Physics
1 answer:
Genrish500 [490]3 years ago
4 0

heat = mass x spec heat x temp rise

40.5=15.4x10^-3xspec heatx11.2

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Which element of a valid contract is established by getting the signatures of all parties?
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The element of a valid contract which is established by getting the signatures of all parties is <u>mutual agreement</u>

<h3>What is an element of a valid contract?</h3>

An element of a valid contract simply refers to that promise made between two or more parties that which allow the courts to make judgement.

Some elements of valid contract are:

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So therefore, the element of a valid contract which is established by getting the signatures of all parties is mutual agreement

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2 years ago
When a solid is placed in a container and heat is applied, a phase change occurs. Watch the video and identify which of the foll
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Answer:

a) false b) true c) true d) false and e) true

Explanation:

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c)   true.   Since energy is used for state change

d)  false.   In general, mobility and temperature are proportional

e)  true.  Heat is the source of energy for the change of state

4 0
3 years ago
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4 0
3 years ago
I hope you are able to read this question?? Help ASAP this question is on the quiz tommorow
Masteriza [31]

You would be correct.

Because you have only JUST released the arrow, and how close he is to the target, it would have the same amount of energy when it strikes the target. Yes, the kinetic energy would be destroyed when you hit the target but not right away. And yes, the potential energy would also be destroyed once you release the arrow, but it goes straight back once it stops moving, aka when it hits the target, although it has only just stopped moving.

Hope this helps!

8 0
3 years ago
You have been called in by your neighborhood safety council to advise them about installing a barrier on a dangerous curve that
Alborosie

Answer: The softer barrier is the better option

Explanation:

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2) The formula for Impulse: J = f * Δt

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A tough barrier would produce a smaller Δt, which means more force is applied on the car. (J is always constant)

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