A car with a mass of 1,250 kg travels at 2.24 m/s and bumps into a stopped car with a mass of 1,300 kg. After the collision, the two cars stick together and move forward. How fast will they both move forward? Round your answer to two decimal places.

0.57 m/s

0.55 m/s

1.10 m/s

1.14 m/s

Answers

Answer 1

Answer:

1.10

Step-by-step explanation:

Answer 2

The velocity of the combined cars after the collision is 1.10 m/s.

What is the velocity?

Velocity is defined as the displacement of the object in a given amount of time and is referred to as velocity.

The momentum of an object is equal to its mass multiplied by its velocity.

The first car has a mass of 1,250 kg and a velocity of 2.24 m/s, its momentum is 1,250 kg x 2.24 m/s = 2,800 kgm/s.

Similarly, since the second car has a mass of 1,300 kg and a velocity of 0 m/s (it is stopped), its momentum is 0 kgm/s.

Therefore, the total momentum of the two cars before the collision is:

⇒ 2,800 kgm/s + 0 kgm/s = 2,800 kg m/s.

After the collision, the two cars stick together and move forward as one unit. We can find the velocity of the combined cars by dividing their total momentum by their total mass.

The total mass of the cars is:

⇒ 1,250 kg + 1,300 kg = 2,550 kg.

So, the velocity of the combined cars after the collision is:

⇒ 2,800 kgm/s / 2,550 kg = 1.098 kgm/s.

To two decimal places, this velocity is 1.10 m/s. Therefore, the correct answer is 1.10 m/s.

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Related Questions

Eight less than the product of 9 and a number equals 2.

Answers

Answer:

10/9

Step-by-step explanation:

the question would be 9x - 8 = 2

which simplified you would get  9x = 10

dividing 9 from both sides would leave you with 10/9 in fraction form

Which equation is a function?
O A. X = -2
O B. Y= 2x – 9
O C. y² = x - 2
O D. x² + y² = 9

Answers

the answer is B -- no matter the x factor y should be single

HELPPP PLEASE!!!! SHOW ALL WORK!!!

Answers

Answer:

x=54

Step-by-step explanation:

these two angles are supplementary to each other. this is because alternate interior angles are congruent, and 2x+42 degrees is supplementary to the alternate interior angle of x-24 degrees. so, we can add these two numbers up and set it equal to 180.

2x+42+x-24=180

3x+18=180

3x=162

x=54

if this question is asking for x, 54 is the answer. if it is asking for the angle measures, plug in 54 for x for each angle and solve.

(3x - 15)° 0 + 25)
105°
Find the value of a
Ox=35
O x 40
O x = 60
* = 65

Answers

x=40 degree is the correct answer

Tell whether this figure creates the conditions to form a unique triangle, more than one triangle, or no triangle.

**Note: The arrows show that the lines will keep going until they meet.
GIVING BRAINLIEST

Answers

Answer:

They will make 1 triangle the lines will keep going until they meet

From the given triangle only one triangle can be made.

What is geometry?

Triangle is a shape made of three sides in a two-dimensional plane. the sum of the three angles is 180 degrees.

One of the first areas of mathematics is geometry, along with arithmetic. It is concerned with spatial characteristics like the separation, shape, size, and relative placement of objects.

Given that the unformed triangle is given in the image.

The triangle can be made by extending the hypotenuse and the perpendicular line to intersect each other at the point. Only one triangle can be formed by doing so.

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Which fractions are equivalent to 3/5 Check all that apply.

Answers

Answer:

12/20    21/35    30/50

Step-by-step explanation:

These are all equivalent fractions to 3/5.

Hope this helps!

The fractions that are equivalent to 3/5 are C) 12/20, D) 21/35, and E) 30/50.

To determine which fractions are equivalent to 3/5, we need to find fractions that can be simplified to the same value.

The fraction 3/5 cannot be simplified further because 3 and 5 have no common factors other than 1.

Let's check each option:

A) 8/10 can be simplified to 4/5, which is not equivalent to 3/5.

B) 8/15 cannot be simplified further, but it is not equal to 3/5.

C) 12/20 can be simplified to 3/5, which is equivalent to 3/5.

D) 21/35 can be simplified to 3/5, which is equivalent to 3/5.

E) 30/50 can be simplified to 3/5, which is equivalent to 3/5.

Therefore, the fractions that are equivalent to 3/5 are C) 12/20, D) 21/35, and E) 30/50.

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NOBODYS HELPING ME ANSWER THIS AND I NEED AN ANSWER ASAP :((( IVE ASKED 2 TIMES ANYWAYS ILL GIVE BRAINLIEST AND 15+

ITS 2 QUESTIONS SEPERATE PLEASE PUT IT AS THIS

QUESTION 1-
______________
QUESTION 2-
______________ m

Answers

Answer:

1) 2/3

2) y= 2x+4

Step-by-step explanation:

For number one, use the formula [tex]\frac{(y_{2}-y_{1} ) }{(x_{2}-x_{1} ) }[/tex].

Insert the given coordinates into the formula.

7-1/10-1= 6/9

Simplify 6/9.

6/9÷3= 2/3

For the second one, I used desmos calculator.

Hope this helps! :)

Evaluate this exponential expression. 4^5

Answers

Answer:

1024

Step-by-step explanation:

4⁵ is 4 multiplied 5 times.

4⁵ = 4 · 4 · 4 · 4 · 4

16 · 4 · 4 · 4

64 · 4 · 4

256 · 4

1024

How are you doing today, if no answer thats fine to.​

Answers

Answer:

I am doing great!

Step-by-step explanation:

Answer:

hello im doing good

Step-by-step explanation:

The chart below shows how far an object travels over a certain time.

A 3-column table with 4 rows. Column 1 is labeled Seconds with entries 4, 8, 12, 16. Column 2 is labeled Inches with entries 18, 36, 54, 72. Column 3 is labeled feet with entries 1.5, 3, blank, 6.

After 12 seconds, how far, in feet, will the object travel?


It will travel ??? feet

Answers

Answer:

4.5      Hope this helps

Step-by-step explanation:

Answer: 4.5

Step-by-step explanation: edge. 2022

Use the definition:
f'(x)=[tex]\lim_{h \to 0} \frac{f(x+h)-f(x)}{h}[/tex]
to find f'(x) for:
f(x)=[tex]\frac{1}{\sqrt{x}}[/tex]+x
I need the WORK, not the answer. Thanks!

Answers

Using the given definition, for [tex]f(x)=\frac1{\sqrt x}+x[/tex], we have

[tex]f'(x)=\displaystyle\lim_{h\to0}\frac{\left(\frac1{\sqrt{x+h}}+x+h\right)-\left(\frac1{\sqrt x}+x\right)}h[/tex]

Right away, we see x and -x in the numerator, so we can drop those terms.

[tex]f'(x)=\displaystyle\lim_{h\to0}\frac{\frac1{\sqrt{x+h}}+h-\frac1{\sqrt x}}h[/tex]

Remember that limits distribute over sums, i.e.

[tex]\displaystyle\lim_{x\to c}(f(x)+g(x))=\lim_{x\to c}f(x)+\lim_{x\to c}g(x)[/tex]

so we can separate the h from everything else in the numerator:

[tex]f'(x)=\displaystyle\lim_{h\to0}\frac{\frac1{\sqrt{x+h}}-\frac1{\sqrt x}}h+\lim_{h\to0}\frac hh[/tex]

Since h ≠ 0, we have [tex]\frac hh=1[/tex], so the second limit is simply 1.

[tex]f'(x)=\displaystyle\lim_{h\to0}\frac{\frac1{\sqrt{x+h}}-\frac1{\sqrt x}}h+1[/tex]

For the remaining limit, focus on the numerator for now. Combine the fractions in the numerator:

[tex]\dfrac1{\sqrt{x+h}}-\dfrac1{\sqrt x}=\dfrac{\sqrt x-\sqrt{x+h}}{\sqrt x\sqrt{x+h}}[/tex]

Recall the difference of squares identity,

[tex]a^2-b^2=(a-b)(a+b)[/tex]

Let [tex]a=\sqrt x[/tex] and [tex]b=\sqrt{x+h}[/tex]. Multiply the numerator and denominator by [tex](a+b)[/tex], so that the numerator can be condensed using the identity above.

[tex]\dfrac{\sqrt x-\sqrt{x+h}}{\sqrt x\sqrt{x+h}}\cdot\dfrac{\sqrt x+\sqrt{x+h}}{\sqrt x+\sqrt{x+h}}[/tex]

[tex]=\dfrac{(\sqrt x)^2-(\sqrt{x+h})^2}{\sqrt x\sqrt{x+h}(\sqrt x+\sqrt{x+h})}[/tex]

[tex]=\dfrac{x-(x+h)}{\sqrt x\sqrt{x+h}(\sqrt x+\sqrt{x+h})}[/tex]

[tex]=-\dfrac h{\sqrt x\sqrt{x+h}(\sqrt x+\sqrt{x+h})}[/tex]

Back to the limit: all this rewriting tells us that

[tex]f'(x)=\displaystyle\lim_{h\to0}\frac{-\frac h{\sqrt x\sqrt{x+h}(\sqrt x+\sqrt{x+h})}}h+1[/tex]

Again, the h's cancel, and we can pull out the factor of -1 from the numerator and simplify the fraction:

[tex]f'(x)=\displaystyle-\lim_{h\to0}\frac1{\sqrt x\sqrt{x+h}(\sqrt x+\sqrt{x+h})}+1[/tex]

The remaining expression is continuous at h = 0, so we can evaluate the limit by substituting directly:

[tex]f'(x)=-\dfrac1{\sqrt x\sqrt{x+0}(\sqrt x+\sqrt{x+0})}+1[/tex]

[tex]f'(x)=-\dfrac1{2x\sqrt x}+1[/tex]

or, if we write [tex]\sqrt x=x^{1/2}[/tex], we get

[tex]f'(x)=-\dfrac12x^{-3/2}+1[/tex]

2k-3/-5 >7 can anyone solve this for me

Answers

Answer:

k< -16

Step-by-step explanation:

Find all solutions of the equation x^2+3x+5=0 and express them in the form a+ bi

Answers

Answer:

in you question there is the ans hibben

Step-by-step explanation:

x^2+3x+5=0 =a+ bi

The capacity of one sachet pure water is 500ml. How many sachet of pure water is needed to fill a barrel of 5,685 litres capacity?​

Answers

Answer:

11370  sachet

Step-by-step explanation:

Answer:

11370 sachets

Step-by-step explanation:

Given parameters:

 Capacity of one sachet of pure water = 500ml = 500 x 10⁻³L

Unknown:

Number of sachet of pure water needed to fill a barrel of 5685liters + /

Solution;

To find the number of sachet;

  500 x 10⁻³L will fill one sachet of pure water;

For 5685 liters, we would require  y sachet of pure water ;

    500 x 10⁻³y  = 5685

         0.5y = 5685

               y = [tex]\frac{5685}{0.5}[/tex]  = 11370 sachets

A Box has a volume of 125 cubic inches. How many 1 inch cubes can fit along the side?

Answers

Answer:

OLUME OF A BOX, CUBE, OR CYLINDER V l w = h where l = the length w = the width, and h = the height of the figure 13 6 8 V = 6. Page 1. VOLUME OF A BOX, CUBE, OR CYLINDER. The concept of volume holds great practical importance.

Step-by-step explanation:

Need help on this pleaseeeeee

Answers

I think the answer is c I may be wrong tho sorry

Answer:

I think it's C

Step-by-step explanation:

I just rotated point K 180 degrees and C was the only one with the coordinate points I got for K'

The probability of an event must have what value?

Answers

Answer:

The probability of an impossible event is 0. The probability of a possible event is 1.

Step-by-step explanation:

I don't know if this is correct but I do hope this helps either way.

TWO THIRDS OF A STUDENT ARE BOYS. HOW MANY BOYS ARE IN MRS. PATRICKS HOMEROOM. DRAW A MODEL OR EXPLAIN

Answers

Hope that this model helps!!

Need to evaluate 256 and fraction 1/4

Answers

Answer:

256fraction=1/4

256÷4=64

64 answer this fraction

Identify the function family to which g(x) belongs. (g(x) x 3 + 5​

Answers

B is bbbbbbbbbbbbbbbbbbbbbbbb


Reason abstractly. Are all horizontal lines parallel? Use slope
explain how you know.

Answers

Answer:

All horizontal lines are NOT parallel.

Step-by-step explanation:

We learned that lines go on forever.  

If one line is slightly slanted, and the other line is completely straight,  these lines are not parallel, as they will meet at some point.

Hope this helped :)

What is 1/10 of 1 3.027

Answers

Answer:

1.3027

Step-by-step explanation:

8.546 rounded to the nearest tenths?

Answers

Answer:

8.550

Step-by-step explanation:

What is the equation for the area of the parallelogram? 3x + x = 74 x + 3x + 74 3x • 74 = x x • 3x = 74

Answers

Answer:

x • 3x = 74

Step-by-step explanation:

Answer:

its D ;D

Step-by-step explanation:

The second angle of a triangle is twice as large as the first angle. The third angle is 35 greater than the second angle. How large is the first angle?

Answers

Answer:

  29°

Step-by-step explanation:

Let x represent the first angle. Then the second angle is 2x, and the third angle is 2x+35°. The sum of the angles is 180°, so we have ...

  x + 2x + (2x+35) = 180

  5x +35 = 180 . . . . collect terms

  x +7 = 36 . . . . . . . divide by 5

  x = 29 . . . . . . . . . . subtract 7

The first angle is 29°.

3.) Find the domain and range for each of the following functions.

Answers

Domain is x’s and range is y’s.

For a, the domain is -2<=x<1
For a, the range is 1<=y<2

For b, the domain is 1<=x<=2
For b, the range is -2<=y<=2

(The <= is the ones with a line under, meaning equal to, if that makes sense. So write with a line under rather than equal sign)
Hope this helps!

4
X,
f(x) = (2x -6,
{
x < 2
x > 2
8. f(-2) =
9. f(3) =
10. f(5) =

Answers

Answer:

Step-by-step explanation:

Hope it helps

The value of y is directly PROPORTIONAL to the value of x. If y=44 when x= 240, what is the value of y when x=84?

Answers

Answer:    y = 15.4

If you need the answer in fraction form, then it would be 77/5

This is equivalent to the mixed number 15 & 2/5

======================================================

Work Shown:

y = k*x ..... general direct proportion equation

44 = k*240 .... plug in x = 240 and y = 44

240k = 44

k = 44/240

k = 11/60 .... divide both parts by 4

y = k*x   .... go back to the general form

y = (11/60)x .... plug in the k value we found earlier

y = (11/60)*84 .... plug in x = 84

y = 15.4

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

Extra info:

15.4 = 15 + 0.4

15.4 = 15 + 4/10

15.4 = 15 + 2/5

15.4 = 15 & 2/5 .... mixed number form

and

15.4 = 15 + 2/5

15.4 = 75/5 + 2/5

15.4 = (75+2)/5

15.4 = 77/5 ... improper fraction

Add 10 8/9+ 2 2/8+ 16 2/9+ 5 7/9=

Answers

Answer:

[tex]\frac{1265}{36}[/tex]

Step-by-step explanation:

[tex]10\frac{8}{9} + 2\frac{2}{8} + 16\frac{2}{9} + 5\frac{7}{9} = \frac{1265}{36}[/tex]  

I hope this helps!

a) Isaac and his sister plan to surprise their parents by buying them each a pair of shoes.
They agree that Isaac will pay 68% of the price since he receives a greater
allowance. Use an estimation strategy to determine how much Isaac will pay if the
total bill is $97.65. Show the step-by-step process you used to solve the problem.

THIS IS WHAT I GOT EM I RIGHT OR WRONG !!
$97.65 x .68 = 66.402 (rounded)

Isaac will pay $66.40

Answers

Answer:

percentage formula

Step-by-step explanation:

if it is 68% on 97.65 dollar the 97.68x 68%/100

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