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Nady [450]
3 years ago
12

The screen shot has all the info about the question so please help me thanks :)

Mathematics
2 answers:
ladessa [460]3 years ago
8 0
You answer I’d B step by step
omeli [17]3 years ago
5 0

Answer:

b

Step-by-step explanation:

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A buoy floating in the sea is bobbing in simple harmonic motion with period 2 seconds and amplitude 8 in. Its displacement d fro
Mrac [35]

Answer:

The equation of the displacement d as a function of time t is :

d(t)=8sin(\pi t+\pi )

Step-by-step explanation:

Generally , A simple harmonic wave is a sinusoidal function that is it can be expressed in simple sin or cos terms.

Thus,

d(t) = Asin(wt+c)

is the general form of displacement of a SHM.

where,

  • <em>d(t) is the displacement with respect to the mean position at any time t</em>
  • <em>A is amplitude </em>
  • <em>w is the natural frequency of oscillation (rads^{-1})</em>
  • <em>c is the phase angle which indicates the initial position of the object in SHM (rad)</em>

given,

  1. Time period (T) = 2s
  2. A=8
  3. The natural frequency (w) and time period (T) is :

                               w=\frac{2\pi} {T}

∴

w = \frac{2\pi }{2}  = \pi rads^{-1}

∴

the equation :

<em>⇒d(t)=8sin(\pi t+c)    </em>                    ------1

since d=0 when t=o ,

<em>⇒0=8sinc\\c=n\pi                         ------2</em>

where n is an integer ;

<u>⇒since the bouy immediately moves in the negative direction , x must be negative or c must be an odd multiple of \pi.</u>

<em>⇒ d(t) = 8sin(\pi t+(2k+1)\pi )         ------3</em>

where k is also an integer ;

the least value of k=0;

thus ,

the equation is :

d(t)=8sin(\pi t+\pi )

<em></em>

7 0
3 years ago
Multiply.
Anvisha [2.4K]

Answer:

2x*x

2x*-5

1*x

1*-5

2x²-10x+x-10 add numbers that have similar variables

-2x²-10x+x-10

=[-2x²-9x-10]

8 0
3 years ago
7/8 divided by 11/12<br><br> Answer has to be a fraction.<br> Include steps if possible.
andrew-mc [135]
7/8 / 11/12. First get the reciprocal of 11/12 (which is 12/11). Then multiply by the reciprocal. 7/8 * 12/11 = 84/88 don't forget to simplify 21/22
7 0
3 years ago
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It takes us of ribbon to make a hair bow. How much ribbon is needed to make 9 bows?
kherson [118]

Steps to Solve:

1. Simplify \frac{7}{2}: 3.5

2. Multiply 3.5 * 9: 31.5

Answer:

A = 31.5 yd

Notes:

N/A

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Write the fraction in simplest form 42/36=
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The answer is simplest form is 7/6= 1 1/6
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