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Liono4ka [1.6K]
3 years ago
14

QUESTION 1 The speed of sound in air is 340 m/s. What is the wavelength of a soundwave that has a frequency of 968 Hz?​

Physics
1 answer:
Anton [14]3 years ago
7 0

Answer:

Explanation:

340 m/s / 968 cyc/s = 0.3512396... ≈ 35.1 cm

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WAVES AND SOUND
lawyer [7]

Answer:

i think it is B

Explanation:

6 0
3 years ago
An object has kinetic energy of 1500 J and a speed of 120 m/s. What is the mass?
Pie

Explanation:

K.E = 1/2mv²

m = 2K.E/v²

m = 2 x 1500/(120)²

m = 3000/14400

m = 0.208 kg

3 0
3 years ago
Can someone help me figure out how to find tension in a rope? The question is:
Simora [160]
You are welcome.......

8 0
3 years ago
Two students are playing hockey with 0.4-N wad of paper. One student hits the wad and it slides across his desk, slowing down at
Vesna [10]

Answer:

0.06

Explanation:

On a level surface, normal force = weight.

Sum of the forces in the x direction:

∑F = ma

Nμ = ma

mgμ = ma

gμ = a

μ = a/g

μ = (0.6 m/s²) / (9.8 m/s²)

μ = 0.06

8 0
3 years ago
Which of the following combinations makes up an ionic compound?
Sonbull [250]

Answer:

D. A positive cation and a negative anion

Explanation:

An ionic compound is defined as the chemical compound formed by the combination of two charged particles or ions held together by electrostatic forces.

An ionic compound is made up of  ions, a cation which is a positively charged ion and an anion which is a negatively charged ion. Example of ionic compounds are Lithium Fluoride, Lithium Iodide, and Sodium Bromide.

Hence, the correct answer is "D. A positive cation and a negative anion".

3 0
3 years ago
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