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tresset_1 [31]
3 years ago
10

Using the formula velocity = distance/time, how fast does sound travel in air at 20 degrees C given a distance of 500 m and 3.92

seconds.
A- 3.92
B- 127 m/s
C- 2,941 m/s
D- 746 m/s
Chemistry
1 answer:
mixas84 [53]3 years ago
5 0

Answer:

B : 127m/s

Explanation:

= 500 ÷ 3.92

= 127.5

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What is the name of the structure that holds the vocal cords?
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6.5hrs

Explanation:

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3 years ago
A 49 gram sample of an unknown metal requires 717 Joules of energy to heat it from 30.5◦C to 101◦C. What is the specific heat of
klasskru [66]

Answer:

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Q=MC  delta  T  where

Q= heat(862 j)

M=  mass  (17 g)

C=  specific  heat capacity=?

delta T = change in  temperature  (  35-10= 25 c)

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=  862 j/( 17 g  x25 c) = 2.028 j/g/c

Explanation:

3 0
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\qquad\qquad\huge\underline{{\sf Answer}}

Here we go ~

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or simply

\qquad \sf  \dashrightarrow \: Butan  ol

7 0
2 years ago
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