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2 years ago

Wave hits an object as shown.

Mathematics

2 answers:

aleksley [76]2 years ago

7 0

Answer:

absorption

diffraction

<u><em>refraction</em></u>

reflection

Step-by-step explanation:

solmaris [256]2 years ago

3 0

Answer:

Refraction

Step-by-step explanation:

Since the line bends (and this can apply to light too), the line refracts, or changes the angle of direction.

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The table below represents a linear relationship. What is the slope of the line?

stealth61 [152]

Answer: side ways

Step-by-step explanation:

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1 year ago

Describe a real world situation that can be represented by the quotient negative 85 divided by 15?

Aleks04 [339]

Mark owes sally 85.00$ he finds 14 friends to help him pay her back. How much does each friend need to pay? (This includes mark)

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2 years ago

Two vectors A⃗ and B⃗ are at right angles to each other. The magnitude of A⃗ is 5.00. What should be the length of B⃗ so that th

creativ13 [48]

Answer:

Length of B is 7.4833

Step-by-step explanation:

The vector sum of A and B vectors in 2D is

$C=A+B=(a_1+b_1,a_2+b_2)$

And its magnitude is:

$C=\sqrt{(a_1+b_1)^2+(a_2+b_2)^2} =9$

Where

$a_1=Asinx$

$a_2=Acosx$

$b_1=Bsin(x+90)$

$b_2=Bcos(x+90)$

Using the properties of the sum of two angles in the sin and cosine:

$b_1=Bsin(x+90)=B(sinx*cos90+sin90*cosx)=Bcosx$

$b_2=Bcos(x+90)=B(cosx*cos90-sinx*sin90)=-Bsinx$

Sustituying in the magnitud of the sum

$C=\sqrt{(Asinx+Bcosx)^2+(Acosx-Bsinx)^2} =9$

$C=\sqrt{A^2sin^2x+2ABsinxcosx+B^2cos^2x+A^2cos^2x-2ABsinxcosx+B^2sin^2x} =9$

$C=\sqrt{A^2(sin^2x+cos^2x)+B^2(cos^2x+sin^2x)}$

$C=\sqrt{A^2+B^2} =9$

Solving for B

$A^2+B^2 =9^2$

$B^2 =9^2-A^2$

Sustituying the value of the magnitud of A

$B^2=81-5^2=81-25=56$

$B= 7. 4833$

8 0

2 years ago

There are 3/20 tickets left to sell and capacity is 3000 how many tickets are available to sell

Musya8 [376]

Answer:

Step-by-step explanation

20x = 900

----- -------

20 20

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2 years ago

What is 7/8 plus 1/3

horsena [70]

7/8 +1/3 =1 1/8 that is the answer

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2 years ago