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2 years ago

Could someone help and explain

Physics

2 answers:

geniusboy [140]2 years ago

5 0

Answer:The loudest of the two sound wave is second one

Explanation:because if shout the sound go high,then which one show you the highest the second one rigth

Scorpion4ik [409]2 years ago

4 0

The second one

EXPLANATION: Amplitude and frequency can determine the energy of a wave. Both of those waves have a frequency of 3 Hertz. So we look at the amplitude the second one has a longer amplitude than the first, therefore the second is louder because the amplitude is higher.

I hope this helps

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A bicyclist of mass 90 kg drives around a circle with a centripetal acceleration

Serggg [28]

given,

mass of bicyclist(m)=90Kg

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3 years ago

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A basketball is held over head at a height of 2.4 m. The ball is lobbed to a teammate at 8 m/s at an angle of 40'. If the ball i

cupoosta [38]

Explanation:

since both the teammates are of the same height, their height won't matter. Because now the basketball won't cover any vertical distance.

We have to calculate its range the horizontal distance covered by it when tossed from one teammate to the other.

range can be calculated by the formula :-

$\boxed{\mathfrak{range = \frac{ u {}^{2} \sin 2\theta }{g} }}$

u is the velocity during its take off and $\theta$ is the angle at which its thrown

Given that

u = 8m/ s
$\theta$ = 40°

calculating range using the above formula

$= \frac{ {8}^{2} \sin2(40) }{10}$

$= \frac{64 \times \sin(80) }{10}$

value of sin 80 = 0. 985

$= \frac{64 \times 0.985}{10}$

$= \frac{63.027}{10}$

$= 6.3027$

Hence,

$\mathfrak { \blue{the \: teammate \: is \: \red{\underline{6.3027 \: meters} }\: away } }$

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3 years ago

What is the period? Blank seconds.

FromTheMoon [43]

Answer:

Period refers to the time for something to happen and is measured in seconds/cycle

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3 years ago

What two quantities must stay the same in order for an object to have a constant velocity?

pentagon [3]

<span>Velocity is a vector and it has both speed and direction. It takes a force to change direction just as it does to change speed</span>. In order to have a constant velocity the object must maintain a constant direction and speed. Hope this answers the questions. Have a nice day.

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2 years ago

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marta [7]

the answer is foot luv <3

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3 years ago

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Could someone help and explain ​

Could someone help and explain