Which equation correctly relates kinetic energy, mass, and velocity?
A. KE=1/2m2v
B. KE=1/2mv2
C. KE=1/2mv
D. KE=1/2mv3

Answers

Answer 1

Answer:

B

Step-by-step explanation:

It is a complex law that is difficult to understand


Related Questions

how to calculate the Triangle Proportionality Theorem

Answers

Step-by-step explanation:

If a line parallel to one side of a triangle intersects the other two sides of the triangle, then the line divides these two sides proportionally.

Kayla goes for a long walk. This graph shows her time and distance traveled throughout the walk.​

Answers

The answer is 2.5 mph

Please help!!

Choose whether the sampling is biased or unbiased

Questions are asked of randomly chosen workers at one of ten workplaces

1. Unbiased
2. Biased

The question asked is, “What do you think about the prison system in this state?”

1. Unbiased
2. Biased

The question asked is, “What do you think about the horrible prison system in this state?”

1. Unbiased
2. Biased

Answers

1. biased

2.unbiased

2. biased prisoners should be treated equally and the system is messed up

The Pythagorean Theorem is
c² = g²-6²
False
O True
O No answer text provided.
O No answer text provided.

Answers

Answer:

            False

Step-by-step explanation:

It depends on the triangle.

If a is the longest side then it's true, but usually when we talk about Pythagorean theorem we mean that c is the longest side of the right triangle. So:

              c² = a² + b²

(i will give the brainlyist please help) The solution to the system is (3, 4);
30 – 2y = 1
4y= 7 + 3
True
False

Answers

Answer:

true

Step-by-step explanation:

first and second one both make sense

The answer is False i am pretty sure

OMG PLZZZZZZ HELP ME I REALLY NEED HELP :'( EVERYONE WHO HELPS ME GETS IT WRONG PLZZZ HELP ME IM BEGGING YOU

Answers

Answer:

1st Picture: d = -16

2nd Picture: g = -13.8

Step-by-step explanation:

1st Picture: Divide both sides by -11 to balance both sides and get the answer.

2nd Picture: Subtract 1.2 from both sides.

Answer:

Question 6:

We have -12.6 = g + 1.2, so we move the 1.2 to the left side to get -13.8 = g because when you move a number you are essentially minusing that number so 1.2 becomes -1.2 .

Question 7:

We have 176 = -11d so we divide by -11 to get -16 = d.

Hope this helped!

if the lenghts of the diagonals of a rhombus are 10 cm and 8 cm then its area is​

Answers

Answer:

40cm square

Step-by-step explanation:

10x8cm=80 cm/2=40cm square

Answer:80cm

Step-by-step explanation:Area=[tex]\frac{dxd}{2}[/tex]

10cm x 8cm=80cm

Plz plz help I’m failing math and need help

Answers

Answer:

5 sweat shirts- $100

8 sweat shirts- $160

9 sweat shirts- $180

12 sweat shirts- $240

Step-by-step explanation:

Each sweat shirt costs $20

The points M( 10,3) and P(-4,"8) are graphed on the coordinate plane. To the nearest
tenth of a unit, what is the distance between points Mand P? Round to the nearest
tenth.

Answers

You can make a triangle with the hypotenuse being the distance between the two points. First, find the absolute value of the change in y and change in x which would be 5 and 14. Next, solve using pythagorean theorem. 5^2 + 14^2 = c^2 —> c = 14.866

Answer: 12.5

Step-by-step explanation:

It is around 12.5 units

The width of a rectangle measures (8.1g-6.5)(8.1g−6.5) centimeters, and its length measures (4.7g-9.2)(4.7g−9.2) centimeters. Which expression represents the perimeter, in centimeters, of the rectangle?

Answers

Answer:

P = (25.6g - 31.4)

Step-by-step explanation:

Given that,

The width of a rectangle = (8.1g−6.5) cm

The length of a rectangle, = (4.7g−9.2)

We know that,

The perimeter of a rectangle is given by :

P = 2(l+b)

Substitute all the values,

P = 2(8.1g−6.5+4.7g−9.2)

= 2(12.8g-15.7)

= 25.6g - 31.4

So, the perimeter of the rectangle is equal to (25.6g - 31.4).

Find the equation of a line that passes through the point (-2, -1) and is
perpendicular to the line with equation y=-2x+8.

Answers

Answer:

2y-x=0

Step-by-step explanation:

Please mark as brainliest

In the diagram to the​ right, GKNMVRPT. Find the value of x. Give the scale factor of the left polygon to the right polygon

Answers

Answer:

Step-by-step explanation:

X+2

1. Ryan is washing windows on a skyscraper. He lowers himself six times,
going down an equal distance each time. In all, Ryan lowers himself 48 ft.
What integer represents the change in Ryan's position each time he lowers
himself? *

Answers

Answer:

Ryan went down a total of 8 times

Step-by-step explanation:

He goes down 6 times 48/6 = 8

El administrador de una finca tiene suficiente alimentacion para alimentar 220 vacas durante 45 dias. ¿Cuantos dias podra alimentar con la misma cantidad de alimento a 450 vacas? A. 11 B. 44 C. 90 D. 22

Answers

Answer:

D. 22

Step-by-step explanation:

Con la información proporcionada sabes que el administrador puede alimentar 220 vacas durante 45 días y puedes deducir que si el número de vacas aumenta el alimento duraría menos días, lo que significa que estas magnitudes son inversamente proporcionales. Por esto, para encontrar la respuesta debes usar una regla de tres inversa:

220 vacas       →      45 días

450 vacas       →          x

x=(220*45)/450

x= 22 días

De acuerdo a esto, la respuesta es que el administrador podrá alimentar a las 450 vacas por 22 días con la misma cantidad de alimento.

Please, I need this done!

Answers

I don’t know if it counts as 2 but the 16x-20 is just a simplified version of the 6x+8x-30+2x+10

solve the system of equations y=5x y=x^2+4
answer:(1,5) and (4, 20)

Answers

The answer is (1,5) and (4,20) they make both of the equations true

If cos (A+B) = cosAcos B – sinAsin B , find the value of cos 75

Answers

Answer:

Step-by-step explanation:

Cos 75 = Cos ( 30 + 45)  {Use Cos (A + B) identity}

            = Cos 30*cos 45 - Sin 30 Sin 45

            [tex]= \frac{\sqrt{3}}{2}*\frac{1}{\sqrt{2}}-\frac{1}{2}*\frac{1}{\sqrt{2}}\\\\= \frac{\sqrt{3}}{2\sqrt{2}}-\frac{1}{2\sqrt{2}}\\\\=\frac{\sqrt{3}-1}{2\sqrt{2}}\\\\=\frac{(\sqrt{3}-1)*\sqrt{2}}{2\sqrt{2}*\sqrt{2}}\\\\=\frac{\sqrt{3}*\sqrt{2}-\sqrt{2}}{2*2}\\\\=\frac{\sqrt{6}-\sqrt{2}}{4}[/tex]

Firas and Nabil are comparing their bank accounts. "I have four times more money than
you" , Firas says. "Anyway, I have only $240 less than you" , Nabil answers .
How much money does each one of them have in his account ?
should be solved as a system​

Answers

Answer:

Firas = $320

Nabil = $80

Step-by-step explanation:

Firas = 4x

Nabil = x

x + 240 = 4x

3x = 240

x = $80

Firas = $240 + $80 OR $80 x 3 = $320

Nabil = $80

Hope that helps!

what is n if the equation is
n - 2 divided by -3 = -6
Please help me I am having a lot of trouble, thank you

Answers

n - 2 / - 3 = - 6 (1) multiply both sides by -3 to get n - 2 alone
n - 2 = 18 (2) add 2 to both sides; 2 on left side gets cancelled so we can now have n all alone
n = 20

Simplify (y+1)+4
Help

Answers

Answer:

y+5

Step-by-step explanation:

Answer: y+5

Step-by-step explanation:hope this help

Find the exact angular velocity in radians per hour wind W= 4.1 rpm

Answers

Answer:

1545.66 rad/h

Step-by-step explanation:

We need to find the angular velocity in rad/hour when wind is moving with a speed of 4.1 rpm.

We know that,

1 revolution = 2π rad

1 hour = 60 minute

So,

[tex]4.1\ rmm = 4.1\times \dfrac{2\pi }{(\dfrac{1}{60})}\ rad/h\\\\=1545.66\ rad/h[/tex]

So, the required angular velocity is 1545.66 rad/h.

somebody please answer only 11. and 13. ANSWER QUICKLY

Answers

11. y=x+4
13. y=1/4x +1

Answer:

Step-by-step explanation:

y=mx+b where m is the slope and b is the y intercept, value of y when x=0

11.

Since we are given the point (0,4) we already know that b=4

slope is m=(y2-y1)/(x2-x1), using our two points (0,4)(-1,3) we have

m=(3-4)/(-1-0)

m=-1/-1=1 so the line is

y=x+4

12.

Again they gave us point (0,1) so we know b=1, from points (0,1)(4,2) we find

m=(2-1)/(4-0)

m=1/4 so our line is

y=x/4+1 (or more neatly)

y=(x+4)/4

2/3 feet converted into inches

2/3 feet= ___ inches

show your work.

please help.​

Answers

Answer:

8

Step-by-step explanation:

1 foot = 12 inches

12/3 = 4

4×2=8

Answer:

Please help fast! will mark brainliest and give a lot of points

i need the answer for this question

Answers

Answer:

z=-13.9

Hope this helped!!

Answer: z= 4.1

Step-by-step explanation:

we want to find the zeros for this polynomial: p(x) = 5x^3 - 5x^2 - 10x

Answers

Answer:

x= 0, 2, -1

Step-by-step explanation:

Help plz helpppppppppppppp ​

Answers

Answer:

A = 45 cm²

Step-by-step explanation:

The area (A) of a trapezium is calculated as

A = [tex]\frac{1}{2}[/tex] h( b₁ + b₂)

where h is the height and b₁, b₂ the parallel bases

Here h = 5, b₁ = 10 and b₂ = 8 , then

A = 0.5 × 5 × (10 + 8) = 0.5 × 5 × 18 = 45 cm²


HELP PLS HELP PLS HELP PLS HELP PLS HELP PLS HELP PLS TY TY TY

Answers

Answer:-5+x<-1

Step-by-step explanation:

Answer:

H. -5 + x < -1

Step-by-step explanation:

Okay so let's first look at our little graph thing. What is it saying? It's telling us that what ever x is, it is NOT 4 (because the circle is not filled in) and it is less than 4 (because it's all shaded in before 4). Now that we know this, lets look at our possible answers.

F. x - 3 < 7

Now, for all of these possible answers, we can solve them exactly like normal equations (like x - 3 = 7).

x - 3 < 7

[add 3 to both sides to leave the x by itself]

x < 10

Whoa, that's not right! We don't even have 10 on our graph, so F is out of the running.

G. x + 6 [tex]\leq[/tex] 10

Okay, let's work smarter, not harder here. So we can see that there is a greater than or equal to sign there. So even if we solve it and we get 4 as the answer, our graph doesn't include 4. So we can throw this answer out right away.

H. -5 + x < -1

Solve like a normal equation in the first one.

-5 + x < -1

[add 5 to both sides to leave the x by itself]

x < 4

Hey! We got something! So let's read this with words. So whatever x is, it does not include 4, and is less than 4. So now looking back on our first brainstorm of the graph, this is in line with what we want.

So this is the answer! Yay!

Just for fun let's look at the last possible answer.

I. x - 8 > -4

Again, solve like a normal equation.

x - 8 > -4

[add 8 to both sides to leave x by itself]

x > 4

Oh! Another 4! But this time the sign is different. Let's read it again with words. So whatever x is, it does not include 4 (ok, good), and is greater than 4 (oh, not good). Our graph showed us that x is less than 4. So this answer is not the answer.

So again, we keep H. as our correct answer.

Miguel has a garden that has an area of 300 square feet. If the corn in his garden covers 160 square feet, what percent of the garden is corn?

Im not sure of my answer but I got 5.33 and the 3 repeats

Answers

Answer:

Im sorry if I'm wrong but I think it's 300+160=460

Answer:

yes your correct  but wrong

Step-by-step explanation:

To find  the area that's covered in corn you need to first write your fraction.

160/300

After you do that you have to turn it into a decimal.

.53333...

After that you need to turn it into a percent so your final answer will be....

53.333...%

BTW try looking to see if you need to round, normally it tells you to do that

help? please and thank you​

Answers

Answer:

first one

relationship between base and perpendicular is

given by tan angle

tan x=P/h

remember perpendicular is opposite side of taken angle

tan x=13/8

<x=tàn-¹(13/8)=58.39°

for second one

relationship between base and hypotenuse is given by cos angle

cos G=b/h

cos G=24/32

<G=cos-¹(24/32)=41.4 is your answer

What is the value of 19-7-15+14

Answers

Answer: the answer is 11 :)

Step-by-step explanation: I hope this helped!

Answer:

11

Step-by-step explanation:

19 - 7 = 12 - 15 = -3 + 14 = 11

or, if your brain likes it better, add the positives, then add the negatives, then subtract:

19 + 14 = 33

-7 -15 = -22

33 - 22 = 11

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