A javelin thrower is running at 7mph and throws her javelin at 18mph at an angle of 13o with the horizontal. Determine the resultant speed and direction of the javelin. i need the magnitude and the direction !!! HELP WILL MARK BRALIEST

Answers

Answer 1
Will I get any points?
Answer 2

Magnitude: 24.93 mph

Direction: 9.37°

A javelin thrower throws her javelin at an angle of 13o

cos13°=v1/18

v1=cos13° * 18= 17.54mph

v=v1+7

   17.54+7=24.54 mph

sin13°=v2/18

v2=sin13° * 18= 4.05mph

tan ∅ =v2/v=0.165

∅ =9.37°

cos ∅ =v/v3

v3=24.54/cos 9.37=24.93

What is the formula for resultant speed?

Multiply the acceleration by the time the object is being accelerated. For example, if an object falls for 3 seconds, multiply 3 by 9.8 meters per second squared, which is the acceleration from gravity. The resultant velocity in this case is 29.4 meters per second.

How do you find the resultant direction?

join the tail of the first vector with the second vector's head and put the arrowhead. To determine the magnitude, measure the length of the resultant R, and find out the direction.

Learn more about resultant force:https://brainly.com/question/14626208

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Related Questions

Complete the table for the given rule.

Rule:y= 4/1 x+1y

Answers

Answer: 2, 3, 4

Step-by-step explanation:

In the table graph provided, you will a column that has "x" as it's title. Under x, 4, 8, and 12 should listed. You figure out the answers for y by inputting the x value into the rule: y = 1/4x + 1.

For y = 1/4(4) + 1, you would multiply 1/4 by 4 and since the fours eliminate one another, you would get 1. Now, you would do 1 + 1, which equals 2. For y = 1/4(8) + 1, you would multiply 1/4 by 8 and since four and eight share the number four as their greatest common factor, four would be eliminated and eight would be reduced to 2. Now, you would do 2 + 1, which equals 3.For y = 1/4(12) + 1, you would multiply 1/4 by 12 and since four and twelve share the number four as their greatest common factor, four would be eliminated and twelve would be reduced to 3. Now, you would do 3 + 1, which equals 4.

Answer my this question too uregent

Answers

Answer:

The correct answer is D.

A, B, and C are incorrect. <3

Hope this helps!

- Madeline

Answer:D
The rest wrong
Hope this helped you

PLEASE HELP ANGLE OF A TRIANGLE

Answers

Answer:

59°

Step-by-step explanation:

The angles of a triangle equal 180°.

Also the angle of a straight line is 180°.

So you first find the missing bottom angle by taking 180-147 to equal 33.

Then you take 33+88+x=180

solve for x by subtracting 88 and 33 from 180 to equal 59.

Answer:

59°

Step-by-step explanation:

180 - 147 = 33

88 + 33 = 121

180 - 121 = 59

I’m confused, please help

Answers

Answer: (a)

Step-by-step explanation:

Given

[tex]g(x)=x^2[/tex]

Clearly, [tex]f(x)[/tex] is obtained by shifting [tex]g(x)[/tex]  3 units down and multiplying it by a certain factor to amplify it.

Checking the option which is 3 units below and multiplying by a factor

option (a) is meeting both the cirterias.

If f left parenthesis x right parenthesis equals x squared minus 3 x plus 5 , then f left parenthesis 4 right parenthesis equals

Answers

Answer:

f(4) = 9

Step-by-step explanation:

f left parenthesis x right parenthesis equals x squared minus 3 x plus 5

f(x) = x² - 3x + 5

f left parenthesis 4 right parenthesis equals

f(4) =

f(x) = x² - 3x + 5

When x = 4

f(4) = 4² - 3(4) + 5

= 16 - 12 + 5

= 9

f(4) = 9

Answer:

Pretty sure its A

Step-by-step explanation:

I need help ASAP!! Please.

Answers

Answer:

x = 8

Step-by-step explanation:

Find the value of x.

Answers

Answer:

Step-by-step explanation:

When two chords intersect inside the circle, the product of their segments are equal.

BE * ED = AE * EC

x *3x = 4 *3

3x²   = 12 {Divide both sides by 3}

  x² = 12/3

  x² = 4

  x = √4

  x = 2

Answer:

The value of x is 2.

Step-by-step explanation:

We know that , when the two chords are intersect inside the circle, the product of their segment are equal.

So, BE × ED = AE × EC

putting the values

x × 3x = 4 × 3

multiply the values

3 x ² = 12

divide 12 by 3

x ² = 12 / 3

x ² = 4

Taking the square root of 4

x = √4

x = 2

The value of x is 2.

PLEASE HELP ME WITH THIS

Answers

-3 is the 3rd box and you go down 3 spaces then over 2

find x if the mean of the number is 13 ,2x,0,5x,11 and 9

Answers

Answer:

45/7

Step-by-step explanation:

ok lets first find the total sum. there are 5 numbers so 13*5=65

2x+0+5x+11+9=65

7x=45

x=45/7 or 6.42857143

Help please! I really need it

Answers

I think it’s none of those.
Radius is a line that reaches the middle of the circle, so like
——
CA

This is my last question and then I’m done

Answers

C is the answer. Good luck!

Answer:

C.  y = -2/3 x + 4

Step-by-step explanation:

y = mx + b

From the graph we see that b = 4, and m = 2/3.

y = -2/3 x + 4

If the measure of ABC is 68°, what is the measure of arc AB?​ (the blue line)

Answers

The answer is A = 34 degrees

Please help !!!!!!!!

Answers

Answer:

C = (4,4)

It is (4,4) because it means that it is twice as large as the original coordinates.

HELP PLEASE !!

The drama teacher wants to determine whether more students at the school would attend a comedy or a musical performance. Select all the following that would NOT help the drama teacher draw conclusions about which performance more students would attend.

A. Students who do not act.


B. Every 4th student selected from an alphabetical list of all students at the school.


C. Students who are in drama club.


D. Students who are in theater class.


E. The same number of students from each grade whose names are randomly selected from a hat.

Answers

Answer:

A, B, and D

Step-by-step explanation:

NEED IT ASAP!!!!!

3 in.
Robert is computing the volume of this sphere:
Where did Robert make a mistake? Identify Robert's computational error.
3 in.
V= (3)3
= 36
~ 113.10 in.3

Answers

Answer:

l think he used three which is the diameter as the radius instead of dividing it by two................

Check out this square pyramid: Find the surface area of the square pyramid (above) using its net (below).

Answers

Answer:

12 square units

Step-by-step explanation:

Given

See attachment for net

Required

The surface area

The net has the following shapes:

1 Square: (Length =2)4 congruent triangles (Base = 2; Height = 2)

So, the surface area is:

Area = Area of Square + 4 * Area of 1 Triangle

[tex]Area = 2 * 2 + 4 * \frac{1}{2} * 2 * 2[/tex]

[tex]Area = 4 + 8[/tex]

[tex]Area = 12[/tex]

What is the length of leg s in the right triangle shown?

Answers

Answer:

D. 5

Step-by-step explanation:

Applying,

cos∅ = adjacent/Hypotenuse

From the diagram,

Given: ∅ = 45°, adjacent = s, hyptenuse = 5√2

Therefore,

cos45° = s/5√2

make s the subject of the equation

s = cos45°×5√2

s = (1/√2)(5√2)

s = 5

Hence the right answer is D. 5

Which expression is equivalent to the following fraction?

Answers

Given:

The fraction is:

[tex]\dfrac{\dfrac{-2}{x}+\dfrac{5}{y}}{\dfrac{3}{y}-\dfrac{2}{x}}[/tex]

To find:

The expression that is equivalent to the given fraction.

Solution:

We have,

[tex]\dfrac{\dfrac{-2}{x}+\dfrac{5}{y}}{\dfrac{3}{y}-\dfrac{2}{x}}[/tex]

After taking LCM, we get

[tex]\dfrac{\dfrac{-2y+5x}{xy}}{\dfrac{3x-2y}{xy}}[/tex]

[tex]\dfrac{-2y+5x}{3x-2y}[/tex]

Therefore, the correct option is A.

Please help me ASAP!

Answers

Answer:

B: 153ft2

Step-by-step explanation:

Ben is monitoring a colony of bacteria. Initially, the colony consists of 159 bacteria. The following function represents the number of bacteria in the colony after x hours.



Which expression approximately represents the number of hours, x, it takes for the number of bacteria in the colony to reach 168?

Answers

Answer:

No solution is possible from the information provided

Step-by-step explanation:

you didn't include the function.

A system of equations consisting of a circle and a line is graphed. Which statements about the number of possible solutions are correct? Check all that apply.
A circle and a line always intersect, so the system can have an infinite number of solutions.
A circle and a line can intersect at one point, so the system can have one solution.
A circle and a line can intersect at three points, so the system can have three solutions.
A circle and a line can intersect twice, so the system can have two solutions.
A circle and a line do not have to intersect, so the system can have no solution.

Answers

Answer:

the solution is where the two objects intersect ...

1) A line can completely miss the circle (no solutions is possible)

2) a line can "kiss" the circle at one point (one solution)

3) note that a line can not "bend"... it can touch one side of the circle pass

through the center and touch the circle in a second spot (going out) .. two solutions...

those are the three possibility that are in the question that was posted...

three check comments are true

Step-by-step explanation:

Jonah's favourite number is a positive integer. One day, he decided to write down all of the positive integers starting at 1 and ending with his favourite number. He noticed, in doing so, that he wrote the digit 7 exactly 30 times. What is Jonah's favourite number?

Answers

Answer:

um I think its 14

Step-by-step explanation:

Which inverse of the difference of 1/3 - 1/4?

Answers

Answer:

0/1

Step-by-step explanation:

A sphere with a radius of 11 Ft so what is its volume FASTTT PLSSSSS

Answers

Step-by-step explanation:

volume of the sphere=4/3×π×r³

=4/3×3.14×11³

=5572.4533ft³

Simplify this question please im really confused

Answers

Answer:

option A

Step-by-step explanation:

[tex]\frac{x^a}{x^b} = x^{a-b}[/tex] , [tex]z^0 = 1[/tex]

So,

[tex]\frac{18x^5 y}{6xy^8z^0} = \frac{18}{6} \times x^{5 -1} \times y^{1-8} = 3 x^4 \times y^{-7} = \frac{3x^4}{y^7}[/tex]

Please help me with this one …..

Answers

Answer:

is the clean area the desired one (I assume, yes)?

then y <= 3x + 5

if the dotted area is the desired area, then

y >= 3x + 5

Step-by-step explanation:

the factor of x is the slope of the line expressed as y/x ratio.

clearly, the line shows that for x changing by 1 unit y changes by 3 units. so, the slope is 3/1.

that leaves us only with the 2 middle options.

for "y <=" the desired values of y for a given x must be on the line (equal) or below (smaller than the value of the line equation). that is true, if the desired area is the clear one (no dots).

so, "y >=" is true, if the dotted area is desired.

What is the product?

Answers

Answer:

Step-by-step explanation:

You can do this in two steps.

4s * (5s^2 + 10s + 3)                   Remove the brackets

20s^3 + 40s^2 + 12 s

2(5s^2 + 10s + 3)  

10s^2 + 20s + 6

Now add them

20s^3 + 40s^2 + 12s + 10s^2 + 20s + 6

Rearrange them so the like terms are together.

20s^3 + 40s^2 + 10s^2 +12s + 20s + 6

20s^3 + 50s^2 + 32s + 6

Một xí nghiệp sản xuất độc quyền hai loại sản phẩm. Biết hàm cầu của hai loại sản phẩm trên lần lượt là 1 2 Q 40 2 ; Q 35 D D 1 2 1 2       P P P P và hàm chi phí kết hợp là 2 2 1 1 2 2 1 2 C Q 6Q Q +Q +15Q 150 .    Q Trong đó, P,Q 1,2   i i i  lần lượt là đơn giá và sản lượng của sản phẩm thứ i . a) (CLO1.3, CLO2.2, CLO4.2) Tìm mức sản lượng của mỗi loại sản phẩm để xí nghiệp có lợi nhuận tối đa. Khi đó, giá bán các sản phẩm là bao nhiêu? b) (CLO1.3, CLO2.2, CLO4.2) Tính chi phí cận biên cho từng loại sản phẩm tại mức tối ưu tìm được ở câu a).

Answers

ah, i’ve seen this one before. this answer is no no idea why you gotta get a chance and i’m you to go pick it out to get your stuff back on your car wash the car and stuff and you get your hair and get it done and you get a little more comfortable with your car and you get a hold on you like that one or a little bit more and stuff and like move you

a container of water is filled to 1/3 of it. if we add 2.5 liters the container will be half full. find how much is the volume of the container. convert it to cm³​

Answers

Answer:

In picture

Step-by-step explanation:

Brainliest please

Help please!!!!help help help

Answers

Answer:

ask the goggle not 1 you help in thi aap bro your aand me same thing make sorry

Answer:

{-2,-1, 0, 1, 8}

Step-by-step explanation:

Domain is the input values ie. x values

{-2,-1, 0, 1, 8}

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