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1 year ago

12

The motor makes a noise when it is turned on.

1 answer:

Zanzabum1 year ago

5 0

The water tank waves are transverse waves while the sound waves are longitudinal waves.

<h3>What is a wave?</h3>

A wave is a disturbance along a medium which transfers energy. We know that the water tank waves are transverse waves while the sound waves are longitudinal waves.

The difference between the two is that in the water waves, the direction of the wave motion is perpendicular to the disturbance while in the sound waves, the the direction of the wave motion is parallel to the disturbance.

Learn more about waves:brainly.com/question/16263433?

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What's the average speed of an object moving 3790 meters in 249 s.

NISA [10]

Heya!!

For calculate velocity, lets applicate formula

$\boxed{d = v * t}$

<u>Δ Being Δ</u>

d = Distance = 3790 m

t = Time = 249 s

v = Velocity = ?

⇒ Let's replace according the formula and clear "v":

$\boxed{v= 3790\ m / 249\ s}$

⇒ Resolving

$\boxed{ v = 15,22 \ m/s }$

Result:

The velocity is <u>15,22 meters per second.</u>

Good Luck!!

4 0

2 years ago

If an object has a mass of 1417g and it is moved 47 meters in 90 seconds, how much power was used?

astraxan [27]

Mass of the object is given as

$m = 1417 g = 1.417 kg$

now the speed of object is given as

$v = \frac{d}{t}$

here we know that

$d = 47 m$

$t = 90 s$

now we will have

$v = \frac{47}{90} = 0.52 m/s$

now we will have kinetic energy of the object as

$KE = \frac{1}{2}mv^2$

$KE = \frac{1}{2}(1.417)(0.52)^2$

$KE = 0.19 J$

now the power is defined as rate of energy

so here we can find power as

$P = \frac{KE}{t}$

$P = \frac{0.19}{90} = 2.14\times 10^{-3} W$

so above is the power used for the object

3 0

3 years ago

Two scientists are discussing their beliefs about something they cannot observe

svetoff [14.1K]

Could it be hypothesis?

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3 years ago

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A 93 kg zebra is traveling 13 m/s east. What is the zebra’s momentum?

Harlamova29_29 [7]

Equation: Mass x Velocity = Momentum

Answer: 93 x 13 = 1,209

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3 years ago

What scientisists stated that animals, as well as plants, are made of cells.?

Andrews [41]

<span>The answer is Mathias Schleiden and <span><span>Theodor Schwann</span></span></span>

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3 years ago