Answer:
In a single replacement reaction, one element takes the place of another in a single compound. In a double replacement reaction, two compounds exchange elements. A combustion reaction occurs when a substance reacts quickly with oxygen. Combustion is commonly called burning
A should be the answer since it makes the water down there cold and the air also. (asked my grandma haha
Answer:
33,02 lb
Explanation:
g_m ≈ 1,62 m/s2
g ≈ 9,81 m/s2
m = 200 lb
m_m = m * g_m / m = 200 * 1,62 / 9,81 = 33,02 lb
The correct answer for that question would be. A
The correct answer is "3. Both increase"
In fact, the frequency of a vibrating string is given by
![f= \frac{1}{2L} \sqrt{ \frac{T}{\mu} }](https://tex.z-dn.net/?f=f%3D%20%5Cfrac%7B1%7D%7B2L%7D%20%20%5Csqrt%7B%20%5Cfrac%7BT%7D%7B%5Cmu%7D%20%7D%20%20)
where L is the length of hte string, T the tension and
![\mu](https://tex.z-dn.net/?f=%5Cmu)
the linear mass density.
We can see that string is made shorter, L decreases, so the frequency f increases. And since the pitch has the same behaviour of the frequency, it increases as well.