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Luda [366]
3 years ago
14

Elephants can communicate using very low frequency sound waves over long distances. An elephant makes a noise below human hearin

g at 16Hz. This low rumble moves at 350 m/s (speed of sound in air). This sound is detected by her friend 25 seconds later.
How far away is her friend?
Physics
1 answer:
saveliy_v [14]3 years ago
5 0

Answer:

8750 m

Explanation:

S= v x t

S= 350 x 25

S= 8750 m

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Andreyy89

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How much net force is needed to accelerate a 20kg mass at 2.5 m/s2?
Ksenya-84 [330]

Answer:

\boxed{Force \: needed = 50 \: N}

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8 0
2 years ago
⃗ has the magnitude 15 cm and it makes and angle 40° with positive X axis. Calculate the X and Y component of ⃗.
topjm [15]

The X component of the vector is 11.5 while the Y component is 9.6.

<h3>What are the components of a vector?</h3>

We know that a vector must posses both magnitude and direction. Now the vector could be resolved into the vertical and the horizontal components of the mixture.

In resolving this vector;

X component = 15 cm cos 40 degrees = 11.5

Y component =  15 cm sin 40 degrees = 9.6

Thus the X component of the vector is 11.5 while the Y component is 9.6.

Learn more about vectors:brainly.com/question/13322477

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3 0
1 year ago
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