Answer:
In my opinion I think that the answer is C sorry If I get this wrong.
Answer:
19.33°C
Explanation:
To find the value of T you use the following formula:

v: speed of sound
To calculate v you use:

λ: wavelength = 0.651m
f: = 545Hz
by replacing :

Finally, by replacing in the first formula you obtain:

T = 19.33°C
Answer:
<h2>100 J</h2>
Explanation:
The work done by an object can be found by using the formula
workdone = force × distance
From the question we have
workdone = 25 × 4
We have the final answer as
<h3>100 J</h3>
Hope this helps you
Answer:
I think deposition of C is the oldest deposit