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zvonat [6]
2 years ago
9

Maria determines that the wavelength of a sound wave is 2.50 meters and that the wave is traveling at 340 m/s. What is the frequ

ency of the sound wave?
Chemistry
1 answer:
USPshnik [31]2 years ago
4 0
Frequency = \frac{speed of wave}{wavelength}
                   = \frac{340}{2.5} = 136 Hz. 
Hope this helps you, have a great day/night ahead! :)
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Question 2 (0 points)
bazaltina [42]

Answer:

The probability  of spinning red with the spinner or rolling an odd number with the  die is \dfrac{1}{8}

Explanation:

Given that,

Total color in spinner = 4

Let the area of four parts is equal in the spinner.

We need to calculate the probability of spinning red

Using formula of probability

P(A) = \dfrac{Number\ of\ red\ color\ outcome}{Total\ number\ of\ colors\ in\ the\ spinner}

Put the value into the formula

P(A)=\dfrac{1}{4}

We need to calculate the probability of odd number of the die

Using formula of probability

P(B) = \dfrac{Number\ of\ odd\ digits\ outcome}{Total\ number\ of\ digits\ in\ the\ die}

Put the value into the formula

P(B)=\dfrac{3}{6}

P(B)=\dfrac{1}{2}

We need to calculate the probability  of spinning red with the spinner or rolling an odd number with the  die

Using formula of probability of two events which is independent

P(A\ and\ B)=P(A)\times P(B)

Put the value into the formula

P(A\ and\ B)=\dfrac{1}{4}\times\dfrac{1}{2}

P(A\ and\ B)=\dfrac{1}{8}

Hence, The probability  of spinning red with the spinner or rolling an odd number with the  die is \dfrac{1}{8}

5 0
3 years ago
A substance has a volume of 20mL and a density of 2.5 g/mL. what is it’s mass?
DochEvi [55]
2.5X20=50g
50g should be the right answer
Mass=volumeXdenisty.
4 0
3 years ago
Examples of gravitational potential energy.
Dennis_Churaev [7]

Answer:

the top of the roller coaster

Explanation:

the roller coaster at the top when it has the most potential energy reaches Peak when its going to convert into kinetic energy

4 0
3 years ago
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Answer:

Temperature of boiling water cannot be measured by a Clinical thermometer The reason behind this is that the range of clinical thermometer varies between only 35° C to 42° C.

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2 years ago
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How do the properties of the elements change as you move across a period on a periodic table from left to right?
Tomtit [17]
B) The elements become less reactive.
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