5.You are driving at a constant speed of 20 m/s when you suddenly hit a patch large oil slick. You slam on the brakes and eventually skid to a complete stop. The skid marks are 40 meters long. Calculate the coefficient of kinetic friction between the oil-covered road
and the car tires.

Answers

Answer 1

The coefficient of kinetic friction between the oil-covered road

and the car tires. is 0.51

To solve this question, we would consider one of the equations of motion.

v² = u² + 2as, where

v = final velocity, which is also equal to 0

u = initial velocity, which is 20m/s

s = skid marks, which is 40 meters long

a = acceleration, which is unknown

0² = 20² + 2*a*40

0 = 400 + 80a

80a = -400

a = -400/80

a = -5 m/s

Also, it is known that acceleration a = (mu)g, where mu is the coefficient of kinetic friction and g is the acceleration due to gravity.

-5 = mu * 9.8

mu = -5/9.8

mu = 0.51

learn more about equations of motion here https://brainly.com/question/16878713


Related Questions

Which expression is equivalent to 125 in expressional form

FAST PLS

Answers

Start by prime factorising 125.

125 = 5 × 5 × 5

If you check the given options, the correct answer is :-

5³ (3rd option)

Verification:-

5³ = 5 × 5 × 5 = 125

Note :-

The 2nd option also gives 125, but they've asked for the answer in exponential form, so the 3rd option is the correct one.

________

꧁✿ ᴿᴬᴵᴺᴮᴼᵂˢᴬᴸᵀ2222 ✬꧂

Option c- 5 raised to power of 3

Please help me with this problem

Answers

Hello this will be easy for you.

Look at the picture, you have the angle UTR which is of 90° degrees. Thus the angle UTS is also 90° .

But the sum of the angles of a triangle is by property equal to 180° so the angle UVT must be equal to 180-90-64 = 26°.

Now we are getting near to solve that x+8 degrees angle.

Recall that UVT is 26° ok ? So 180-26 = x+8

Thus

x+8 = 154

x = 154 - 8

x = 146

Finally the angle UVS = 154 and the value of x = 146

You can see all the angles in the image attached below

Good luck you will be the best

Gina has 48 stickers 3/8 are flowers, 1/8 were plants, how many are people

Answers

Answer:

Hello!

Judging by the question you have provided I have deduced that the correct answer is:

24 people

Step-by-step explanation:

To come across this answer I assumed that [tex]\frac{3}{8}[/tex] of the stickers are flowers, [tex]\frac{1}{8}[/tex] of the stickers are plants, and the wrest of the stickers are people.

I then realized that I could look at the equation this way:

If we already know how many stickers are not people, we can then add up the amount of stickers we know are not people, and then subtract that amount from the total amount of stickers to figure out how many left can be people!

Which in this case would be:

[tex]\frac{3}{8}[/tex] (not people)+  [tex]\frac{1}{8}[/tex] (not people) = [tex]\frac{4}{8}[/tex] stickers that are not people, or if simplified [tex]\frac{1}{2}[/tex] or half of the total number of stickers.

We now know that half of the stickers are not people, so thus we can deduce that the other half of the stickers are people.

And half of 48 is:

24

Thus,  24 stickers are people!

And the other 24 have to be flowers and plants!

24 stickers were people

the ratio of milk to sugar in an iced coffee is 4 to 1. if you add 4 teaspoons of milk, how many teaspoons of sugar should you add?​

Answers

Answer:

the answer is you need to add 1 teaspoon of sugar

Step-by-step explanation:

What is: 17/21 + 1/3 - 5/7 as a fraction in simplest form?

(Giving brainliest, 5 stars and a thanks)

Answers

Answer:

3/7

Step-by-step explanation:

it is -1/21 as a fraction

Find the shaded area

Answers

216-64=152

152 hope this helps!!

Answer:

30

Step-by-step explanation:

Evaluate the expression.

−12 ⋅ 1/3

Group of answer choices

4

-4

36

-36

Answers

Answer:

Option B. -4

Step-by-step explanation:

-12 x (1/3)

=> -12 ÷ 3

=> -4

Therefore, -4 is our answer.

Hoped this helped.

5

Enter the correct answer in the box.

What is the standard form of function ?

f(x) = 4(x + 6)2 + 5

Substitute numerical values into the equation for a, b, and c.

CP

TE

sin cos tan sin-cos

+

음 (0) 미

vo 90

а в

S

tan

0

0

2 Δ

n

X

<

A

рф

CSC seccotlog logo

0

1

In

II

U

f(x)

ax? + bx + c

Darat

Naut

Answers

The standard form of the function is [tex]4x^2+48x + 149[/tex]

The standard form of an equation

The standard quadratic equation is expressed as:

[tex]y = ax^2 + bx + c[/tex]

Given the vertex form of an equation expressed as [tex]g(x) = 4(x + 6)^2 + 5[/tex]

Expand the expression:

[tex]f(x) = 4(x + 6)^2 + 5\\f(x) = 4(x^2+12x + 36) + 5\\f(x) = 4x^2+48x + 149\\[/tex]

Hence the standard form of the function is [tex]4x^2+48x + 149[/tex]

Learn more on standard form here: https://brainly.com/question/19169731

how to make it guys please

Answers

Answer:

were is the qn?

Step-by-step explanation:

Please hurry I have to do it in 2 minutes

Answers

Answer:

[tex]w-0.15 = 0.25[/tex]

Step-by-step explanation:

Situation. 11. The weather channel reported overnight rainfall of 1.5 inches and an average of 0.5 inches each hour for the remainder of the day. After how many hours will there be more than 5 inches of rain?​

Answers

Answer: The amount of precipitation that falls around the world may range from less than 0.1 inch per year in some deserts to more than 900 inches per year

Step-by-step explanation:

What is the solution of the system of equations?

Answers

your desmos graph is really weird as the point is between 4 and 8 but with the one y=-x+5 we can see that the y intercept is 5 and the x value is 0

so the point is 0,5

When 36x^4 + 12x^8 is divided by 12x^4, the result is

Answers

Answer:

The result is 3+x^4.

Add or subtract. Write fractions in simplest form.

-9.24 + (-2.89)

how do i do this problem? please help, i will mark you brainliest!!

Answers

Answer:

-12.13

Step-by-step explanation:

To add two negative numbers, drop the negative signs and add the two positive numbers. Then make the answer negative.

-9.24 + (-2.89) =

We are adding two negative numbers, -9.24 and -2.89.

Step 1: ignore the negative signs and add the number 9.24 + 2.89

9.24 + 2.89 = 12.13

Step 2: the answer is negative, so add a negative sign to the sum above.

-9.24 + (-2.89) = -12.13

HELPPPPPPPPPP PLEASE

Answers

Answer:

The answer is in the above attachment.

Answer:

1. 6 x^8 y^5

2. 4 x^5 z^8

3. 12 a^9 b7

4. 6 s^9 t^3

Step-by-step explanation:

1. (3 x^2 y^4) × (2 x^6 y)

= [ (3×2) (x^2 × x^6) (y^4 × y) ]

= 6 x^8 y^5

2. [ (x z^3) × (4 x^4 z^5) ]

= (4 × 1) (x × x^4) (z^3 × z^5)

3. .........

4. ...........

Don't mind me, cause I'm busy

Jacob followed a recipe that requires 2 cups of water for ever 3 cups of flour. If he used 8 cups of flour, how many cups of water did he use?

options

2 2/3

4


5 1/3

12

Answers

Answer:12

Step-by-step explanation:

3 divided by 2 = 1.5

1.5x8=12

He used 12 cups of water

Have A Good Day

Jack’s truck had used 30 gallons of fuel from a 50 gallon tank. What percentage was used? *

Answers

anwers: is 15 because I did 30 percent of 50

The answer is 60% because you can take the 50 and times it by 2 to get 100 and you can take the 30 and times it by to to get 60 so you know that 30 gallons out of a 50 gallon tank is 60% of the fuel

A radioactive substance decays exponentially. A scientist begins with 150 milligrams of a radioactive substance. After 20 hours, 75 mg of the substance remains. How many milligrams will remain after 27 hours?

Answers

Answer:

Step-by-step explanation:

Inequalities definition

Answers

Answer:

a inequality is a relation which makes a non-equal comparison between two numbers or other mathematical expressions. It is used most often to compare two numbers on the number line by their size.

Step-by-step explanation:

hope it helps :)

Answer:

In Algebra, inequality is a Mathematical statement that shows the relation between two expressions using the inequality symbol. The expressions on both sides of an inequality sign are not equal. It means that the expression on the left-hand side should be greater than or less than the expression on the right-hand side or vice versa. If the relationship between two algebraic expressions is defined using the inequality symbols, then it is called literal inequalities.  If two real numbers or the algebraic expressions are related by the symbols “>”, “<”, “≥”, “≤”, then the relation is called an inequality.

tret
) Write a system of equations to describe the situation below, solve using any method, and
fill in the blanks,
4) Miss Ellison is getting married soon. She would like to hire a professional who will come
to her house and do hair and makeup for the bridal party on her wedding day. She has
narrowed it down to two possible choices. A woman from Oxford Salon charges an initial fee
of $34 and then an additional $13 per hour. Alternatively, a team from Beauty by Charlie
offers a free consultation and then charges a higher hourly rate of $30. If it takes a certain
amount of time to finish everyone's hair and makeup, Miss Ellison will end up paying the
same amount either way. How long would that take? How much would Miss Ellison end up
paying?
hours, to finish everyone's hair and makeup, Miss Ellison will end up
It it takes
paying $

Answers

The two equations expressed in this scenario will be

y = 13x + 34

And

y = 30x

I like substitution, so let’s use that

Plug in y = 30x for y in the first equation

30x = 13x + 34

Subtract

17x = 34

x = 2

Plug in 2 for x in any equation

y = 30(2)

y = 60


It would be 2 hours and she would pay $60 dollars

HELP WILL GIVE BRAINLIEST

Answers

0 i think. Im not sure tho hope this helps

8. A bamboo plant is 10 centimeters tall at noon and grows at a rate of 5 centimeters every 2 hours. The height (in centimeters) is a function h(t) of the time t it grows. When will the plant be 20 centimeters tall?​

Answers

Answer:

in 10 hours

Step-by-step explanation:

Answer: 4 hours

Step-by-step explanation: since the plant is already 10 centimeters, and it grows five centimeters every two hours, it only needs four hours to grow another 10 centimeters for it to be 20 centimeters.

I know that x + 2 is a factor of P(x) = 2x^{3} + 5x^{2} + 5x + 6, but I just don't know how to do the second half

Answers

Answer:

explain it again

Step-by-step explanation:

i don't understand

the table shows the pricing for four different types of gasoline which type cost the least per gallon a $20.20 for 10 galb $26.04 for 12 gal c $28.14 for 14 gal d $30.45 for 15 gal​

Answers

Answer:

A is the cheapest deal.

Step-by-step explanation:

find unit rate; cost / quantity

20.20 / 10 = $2.02 per gallon

26.04 / 12 = $2.17 per gallon

28.24 / 24 = $2.01 per gallon

30.45 / 25 = $2.03 per gallon

Help help help help please please e

Answers

The answer, when rounded to the nearest tenth is 19.2

First you can get rid of the decimals by multiplying both numbers by 100, this just makes the whole problem easier. Now all that needs to be done is long division:

(In my work I didn’t realize that it said round to the nearest tenth until I had already gotten past what I needed to find)

What is 64 minutes as mixed number? (i'm pretty sure it might be
[tex]1 \frac{?}{?} [/tex]
but i don't know)

Answers

Answer:

1 1/15

Step-by-step explanation:

64 minutes is the same thing as 64/60 minutes.

64 goes into 60 once. 64-60=4, so that would be your numerator. You would keep the denominator as 60, since it's still out of 60.

If you put those numbers together your fraction would be

1 and 4/60, if you want to simplify, 60/4=15, so 1 and 1/15 would be your fraction.

Hope this helped!

What is the domain of the square root function graphed below?
4
-6
4
-2
6
X
15
6

Answers

Answer:

x[tex]\leq[/tex]-1

Step-by-step explanation:

A A color printer prints 23 pages in 8 minutes.
How many minutes does it take per page?

Answers

Answer:

almost 3 pages

Step-by-step explanation:

take 23 divided by 8 =2.875

Five students wrote a quiz with the maximum score of 50. The scores of four of the students are 42,43,46 and 49. The score of the fifth student was N. The mean of the five students' scores was the same as the median of the five students' scores . What is the possible values of N .​

Answers

Answer:

45

Step-by-step explanation:

avg=42+43+46+49/4

avg=180/4

n=45

Which of the following is an equivalent form of the compound inequality

Answers

Answer:

pls mark brainy

Step-by-step explanation:

option (d) is correct.

An equivalent form of the  given compound inequality −44 > −2x − 8 ≥ −8 is  −44 > −2x − 8 and −2x − 8 ≥ −8

Step-by-step explanation:

Given a compound inequality −44 > −2x − 8 ≥ −8

We have to write  an equivalent form of compound inequality.

Compound inequality  consists of two inequalities joined together and the solution is the intersection of each inequality.

Compound inequality has two sides the left hand side and right hand side we can solve them by taking each inequality one at a time.

For given compound inequality, −44 > −2x − 8 ≥ −8

we have

Left side of inequality as  −44 > −2x − 8

and right side of inequality as  −2x − 8 ≥ −8

Thus, option (d) is correct.

Thus, An equivalent form of the  given compound inequality −44 > −2x − 8 ≥ −8 is  −44 > −2x − 8 and −2x − 8 ≥ −8

Other Questions
text: Lola, I don't like the dirty microwave and I don't like the clothes on the floorBased on the text, what can Lola do? Limpiar y ordenar. Guardar y pasar el aspirador. Arreglar y poner la mesa. Barrer y fregar. How many moles of NaOH are present in 12.0 mL of 0.110 NaOH? Moles: ___________ Why is diversity a pride of Nepal ? Write with examples not in less then twelve sentence please help me anyone i will give you brain points The dissolved materials in seawater are thought to originate from chemical weathering of rocks on the continents and also from ________. If 5.3 g of gallium reactions with 5.3 g of oxygen according to the following reaction, how many grams of gallium oxide can be produced?Word equation:Formula equation:(Must be balanced!) Select the correct answer.Read these sentences and choose the correct word or phrase to complete the last sentence.La consommation de la Venus est 23 km/l. La consommation de la Pluto est 25km/l. Alors, la Pluto estconfortableOB.chre.conome en carburantOD. rapide Find x.Multiple choice.8, 9, 10, 11 Find the derivative of the function y = ln(3t+4) Can someone help me Ill mark you brainless two rays that have a common endpoint and form a line Plants obtain energy froma. soilc. anabolismd. fertilizerb. sunlight What is the word for the skin having microscopic holes. The function c(h)= (20h)/(h^2+2) models the concentration of a medication in the bloodstream h hours after its injection into the muscle tissue.-Does the graph have a vertical asymptote? If so, give the equation of the vertical asymptote and explain why this would be a concern or not. If the function does not have a vertical asymptote, explain why.-Find the horizontal asymptote, what does it mean in the context of this problem?-Does the function cross the horizontal asymptote? Does it make sense in the relation to this problem?I have the answers, I just dont understand how to explain them in the context of the problem. Which form of the verb ALLER fits correctly in the following sentence?" Ellesweekend."au cinma leO A. vaOB. vaisO C. vontO D. allons PLS HELP ASAPx^2 - 4x-1=0Solve using formula A company has $7,200 to send its employees to a conference. The conference costs $900 for each employee who attends. How many employees can the company send to the conference? Triangle RAD is reflected over the x-axis to form triangleR'A'D' (not shown). Then triangle R'A'D'istranslated to form triangle R" A"D"(not shown). Point A" is shown plotted on the xy-plane after the secondtransformation. Determine the coordinates of D"?OD" (7,2)O D" (9,-10)OD" (4,-2)OD" (7-10). The work of such researchers as Broca, Fritsch, Hitzig, and Ferrier demonstrated localized brain function, which was somewhat similar to the predictions made by ________. What is the solution of this system of equations?x + 3y = 73x +2y = 0A. (3,2)B. (-2,3)C. (2, -3)D. (-3,2)E. (-2,-3)