a 91.5 kg football player running east at 2.73 m/s tackles a 63.5 kg player running west at 3.09 m/s. what is their velocity afterward?

Answers

Answer 1

Answer:

2.88m/s

Step-by-step explanation:

By using the law of conservation of momentum

Initial momentum = final momentum

v = is their combined velocity afterwards

Solving equation (1) for v

V = 2.88 m/s

Therefore the velocity afterward is 2.88 m/s.

Answer 2

Answer:

0.348

Step-by-step explanation:

acellus


Related Questions

What is the slope of y=1x-3

Answers

Answer:

Slope=1

Step-by-step explanation:

The slope-intercept form is y=mx+b y = m x + b , where m m is the slope and b b is the y-intercept. Combine 13 1 3 and x x . Rewrite in slope-intercept form. Using the slope-intercept form, the slope is 13

Yun Sil added twice as many new songs on her MP3 player as Matt, who added 5 more new songs on his MP3 player than Sierra. The sum of the

songs added on all three players is 15 more than the cube of the number of songs added on Sierra's player. About how many songs are on each

person's player?

Answers

Answer:

Sierra=2songs

Matt=7songs

Yun SIl=14songs

step-by-step explanation:

Step 1

Let,The number of songs YunSil added = x

Number of songs Matt added = y

And number of songs Sierra added = z

Such that Matt has 5more than Sierra =y = 5 +z

Yun SIl has 2 times more thann Matt, x = 2y

x =2(5+z)=10 +2z

Step 2

The expression used to determine number of songs on each player given that the total of songs added on the three players =15 +z^3

Such that

YunSil+Matt+Sierra==15 +z^3

10+2z+ 5+z +z = 15 +z^3

4z +15 = 15 +z^3

4z=15-15+z^3

4z=+z^3

4=z^3/z

4=z^2

Z=√4 =2

Therefore Sierra has z=2songs

Matt has 5+z=5+2=7songs

YunSil has 2(5+z)= 2x7=14songs

The song that are on each person player are as follows;

matt song = 7

Yung Sil song = 14

Sierra song = 2

Let

a = Matt song added

b = Yun Sil song

c = Sierra song =

Therefore,

b = 2a

a = c + 5

(c + 5 + 2a + c)  - c³ = 15

(2c + 2(c + 5) + 5) - c³ = 15

2c + 2c + 10 + 5 - c³ = 15

4c + 15 - c³ = 15

4c - c³ = 0

c³ = 4c

c² = 4

c = √4

c = 2

a = 2 + 5 = 7

b = 2(7) = 14

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Kaelyn has 14 coins that have a value if $1.20. she only had dimes and nickles. How many nickels does kaelyn have?​

Answers

Answer:

24

Step-by-step explanation:

What is the value of 4+(-7)

Answers

i think the answer would be -3

Answer:

-3

Step-by-step explanation:

The length of the diagonal of a square is 30square root 2 find the perimeter of the square

Answers

Answer:

120.

Step-by-step explanation:

Using the Pythagoras theorem:

(30√2)^2 = x^2 + x^2         where x =length of each side of the square

1800 = 2x^2

x^2 = 900

x = 30.

So the perimeter = 4*30 = 120.


A car is 160 inches long.
A truck is 7% longer than the car.
How long is the truck?
112 inches
171.2 inches
272 inches
167 inches

Answers

Answer:

Length of truck = 160 +7% of 160 = 160 +11.2 = 171.2inches

Three-quarters of the students that Maria surveyed stated that they liked to sleep in on Saturday morning. If 24 of the students said they liked to sleep in, how many students did Maria survey?

a- 15
b- 18
c- 32
d- 36

Answers

Answer:

I think it’s C

Step-by-step explanation:

PLS HELP WILL GIVE BRAINLIEST AND POINTS!! How many variable terms are in the expression 3x^3y + 5x^2 + y + 9?

Answers

Answer:

4 variables

Step-by-step explanation:

Hope you pass your test!

Which property is used in the problem below?

2(x+4)=2x+8

Answers

Answer:

You would use the distributive property.

Step-by-step explanation:

2(x+4) = 2x+8

2x+8x = 2x+8

10x = 2x+8

10x - 2x = 2x-2x+8

8x = 8

8x/8 = 8/8

x = 1

can anybody help on this question ? please and thank you !!

Answers

Answer:

Sorry I'm only in algebra one.

Step-by-step explanation:

Label ABC with the following information.
AB = 35
AC = 62
Find m/c.

Answers

Answer:

m<C = 34.4 °

Step-by-step explanation:

From the question given above, the following data were obtained:

Opposite = AB = 35

Hypothenus = AC = 62

Angle C =?

The value of m<C can be obtained by using sine ratio as illustrated below:

Sine C = Opposite /Hypothenus

Sine C = 35 / 62

Sine C = 0.5645

Take the inverse of sine

C = Sine¯¹ 0.5645

C = 34.4 °

Thus,

m<C = 34.4 °

Write an equation in the form y = mx + b to model the given representation.

Answers

Where’s the representation but I don’t think I can do it too hard

A company packages pencil lead for mechanical pencils.

The pencil lead is packaged in lengths of 0.025 m. How

many of these shorter pieces can be cut from a strip of

pencil lead that is 2.4 m long?

Answers

Answer: 96

Step-by-step explanation:

From the question, we are informed that a pencil lead is packaged in lengths of 0.025 m. To get the number of the shorter pieces can be cut from a strip of pencil lead that is 2.4 m long, we have to divide 2.4 by 0.025. This will be:

= 2.4 / 0.025

= 96

Therefore, 96 shorter pencils can be gotten

Answer:

96

Step-by-step explanation:

(0v0) '

Find the percent of discount for a $38,000 car that is on sale for $33,500. Answer to the nearest percent.

Answers

Answer:

i think its 12%

Step-by-step explanation:

Round 64.291666666667 And I will give u the Brainliest

Answers

Answer: 64.3

Step-by-step explanation:

It depends what decimal place you want and how accurate you want to be.

64.3

64.292

64.0

Are all acceptable

ILL GIVE BRAINLIESTTTTTT
help!!! use proportional reasoning to find 65%of 200.... also whats the part and wholeeeeeee thanks

Answers

Answer:

130

Step-by-step explanation:

65*2=130

At my birthday party, the girls ate 3 pizzas and the boys at 5 pizzas. How much more pizza did the boys eat than the girls?

Answers

Answer:

the answer is 2

Step-by-step explanation:

Answer: The boys ate 2 more pizza's than the girls.

Step-by-step explanation:

Girls = 3 pizzas

Boys = 5 pizzas

Now subtract them:

5 - 3 = 2

Write the equation that expresses the table below.

Answers

Answer:

y = 10x

Step-by-step explanation:

(2, 20)

(5, 50)

(7, 70)

From 2 to 5 we add 3 (x section)

From 20 to 50 we add 30 (y section)

We can do y/x = 30/3 = 10

The slope will be 10.

Hope this helped!

Have a supercalifragilisitcexpialidocious day!

Answer:[tex]\boxed{\boxed{\sf{y=10x}}}[/tex]Solution Steps:

______________________________

1.) Calculate the distance for each [tex]\bold{(x)}[/tex] value to [tex]\bold{(y)}[/tex]:[tex]20[/tex] ÷ [tex]2=10[/tex][tex]50[/tex] ÷ [tex]5=10[/tex][tex]70[/tex] ÷ [tex]7=10[/tex]

  - Now that we did that, you have to make it into a rule that makes sense, if we did [tex](y)[/tex] ÷ [tex](x)[/tex], the table would change. So to make it work you do the opposite of what we did to find the 10 value. This makes it multiplying [tex](x)[/tex] by 10.

So your answer is [tex]\bold{y=10x}[/tex].

______________________________

In 1995, there were 80 birds in a park. The population increased by 5% each year. The number of birds in the park in 1997 was

Answers

Answer:

88.2

80(1+0.05)* 2

Step-by-step explanation:

The number of birds in the park in 1997 is given by the equation A = 88.2 birds

What is exponential growth factor?

The exponential growth or decay formula is given by

x ( t ) = x₀ × ( 1 + r )ⁿ

x ( t ) is the value at time t

x₀ is the initial value at time t = 0.

r is the growth rate when r>0 or decay rate when r<0, in percent

t is the time in discrete intervals and selected time units

Given data ,

Let the number of birds in 1997 be represented as A

Now , the equation will be

The number of birds in 1995 x₀ = 80 birds

The time n = 1997 - 1995 = 2 years

The percentage of increase r = 5 %

The number of birds A is calculated by exponential growth factor ,

Substituting the values in the equation , we get

x ( t ) = x₀ × ( 1 + r )ⁿ

x ( 2 ) = 80 ( 1 + ( 5/100 ) )²

On simplifying the equation , we get

x ( 2 ) = 80 ( 1 + 0.05 )²

x ( 2 ) = 80 ( 1.05 )²

x ( 2 ) = 80 x 1.1025

x ( 2 ) = 88.2 birds

Therefore , the value of A is 88 birds

Hence , the number of birds is 88 birds

To learn more about exponential growth factor click :

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if ABCD is a parallelogram then what is the measure of < A - <C​

Answers

Answer:

The answer is 0.

Martin charges $10 for every 5 bags of leaves he rakes. Last weekend, he raked 24 bags of leaves. How much money did he earn?

Answers

Answer:

Solution:

24 divided by 5 = 4.8

round 4.8 down to 4

10 times 4 = 40

Martin earned 40 dollars.

Step-by-step explanation:

Hope this helped!

Answer:

Martin earn $48

Step-by-step explanation:

24/5 = 4.8

4.8 x 10 = 48

So Martin earn $48

TIME REMAIN 56:07 What method can be used to write the equation of a line in slope-intercept form given two points? Find the slono uning​

Answers

Step-by-step explanation:

1. Pick two points on the line and use them to find the slope.

2. Then, find the coordinates of the y-intercept.

3. The y- coordinate is the value of b in the equation.

Answer:

Step-by-step explanation:

First find the slope of the line.

If the 2 points are (x1, y1) and (x2, y2) then the slope is (y2-y1)/(x2-x1).

Then we can use the point-slope form of the equation of the line:

y - y1 = m(x - x1)  where m = the slope and by substituting the point (x1, y1) we can  convert the equation to slope intercept form ( which is y = mx + b).

Example:

Find slope-intercept equation for the line joining  the points (1, 0) and (3, 4):

The slope = (4 - 0)/(3 - 1) = 4/2 = 2.

Now we plug in the slope m and the point (3, 4) into  y - y1 = m(x - x1):

y - 4 = 2(x - 3)       (Note we can use (1, 0) OR (3, 4) as they are both on line).

y - 4 = 2x - 6

y = 2x - 6 + 4

y = 2x - 2 which is slope-intercept form.

Find the slope between:
(4,6)
(-1, -3)

Answers

Answer:

slope={-3-6}/(-1-4)=-9/-5=9/5

Answer:

slope is 3/5 very simple

Write the equation of a line that is parallel to the line y=4x+2 and passes through the point (4,1)

Answers

Answer:

y = 4x-13

Step-by-step explanation:

The standard equation of the line is y = mx+c

m is the slope

c is the intercept

Given the equation y = 4x+2

The slope m = 4

Substitute m = 4  and the given point into the formula y = mx+c

1 = 4(4)+c

1 = 14+c

c = -13

Get the equation

Recall that y = mx+c

y = 4x + (-13)

y = 4x-13

Hence the required equation is y = 4x-13

determine if the polygons are similar. If so, write a similarity statement and find the scale factor.

Answers

Answer:

the polygons are similar bc they both share the same angles and DF is equal to AB and EF is equal to AC and DE is equal to BC

Expand the expression 3(7 + x)

Answers

Answer:

3x + 21 or 21 + 3x

Step-by-step explanation:

Remark

This is an example of the distributive property. Of all the fundamental rules used in solving equations, this is likely the most important, at least at beginning levels.

Solution

What this is saying is two things.

1. you must multiply both terms on either side of the + sign by the factor outside the brackets.

2. You must not destroy a plus (or minus) sign unless the two terms inside the brackets are exactly the same.

3(7 + x)           The terms are not the same, so your answer must have a plus sign

Left side of the plus: 3*7

Right side of the plus: 3 * x

The answer then is 21 + 3x

It is more commonly written as 3x + 21

A donut shop made 61 donuts. They put frosting on 47 of the donuts. What is the ratio of the number of donuts without frosting to the total number of donuts?

Answers

Answer:

14:61

Step-by-step explanation:

Answer:

The answer is 14:61

Step-by-step explanation:

it can be written also as a fraction

1696700 round to the nearest cent

Pls help

Answers

Answer:can't do that

Step-by-step explanation:

Determine whether the relation is a function. Explain why or why not.


{(2, 5), (3, –5), (4, 5), (5, –5)}


A.
Yes; no value in the domain corresponds to more than one value of the range.


B.
No; the domain value 5 corresponds to two range values, 2 and 3.


C.
Yes; multiple domain values correspond to the same range value.

Answers

Answer:

A.  Yes; no value in the domain corresponds to more than one value of the range.

Step-by-step explanation:

There is no domain value that corresponds to more than one range value.

 

If you graph the ordered pairs on a coordinate plane, you cannot draw a vertical line that passes through more than one point.

ae.
1) Which algae has a larger mass at 3 hours, in kilograms?
and
e е
A) The blue algae has 12 kg more mass at 3 hours.
B) The green algae has 12 kg more mass at 3 hours.
C) The blue algae has 36 kg more mass at 3 hours.
D) The green algae has 36 kg more mass at 3 hours.

Answers

Answer:

the blue green algae which is also the most success wishes one in the algae group for the elevator

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