5. A moving car has kinetic energy. If the mass is doubled what happens to the
amount of kinetic energy? If the speed is doubled what happens to the amount
of kinetic energy?

Answers

Answer 1

Answer:

See below ~

Step-by-step explanation:

Change in KE if mass is doubled

KE (original) = 1/2mv²KE (new) = 1/2 x (2m) x v²KE (new) = mv²⇒ KE is doubled

Change in KE if speed is doubled

KE (new) = 1/2 x m x (2v)²KE (new) = 1/2 x 4 x mv²KE (new) = 2mv²⇒ KE is quadrupled

Related Questions

If 7a+3b=20 and 3a+7b=10, what is a+b?

Answers

Answer:

3

Step-by-step explanation:

7a+3b=20

3a+7b=10

Substitution:

[tex]\begin{bmatrix}3\cdot \frac{20-3b}{7}+7b=10\end{bmatrix}[/tex]

[tex]a=\frac{20-3\cdot \frac{1}{4}}{7}[/tex]

[tex]a=\frac{11}{4},\:b=\frac{1}{4}[/tex]

11=4 + 1=4 = 12/4

12/4 = 3

Which picture shows 1/4?

Answers

Answer:

The bottom left picture is the answer. It contains 4 equally sized parts and only has 1 shaded part, so that's 1 shaded part / 4 parts, or 1/4. The top left picture have 5 parts instead of 4 (1/5), the parts in the top right picture aren't equally sized, and the bottom right picture has 2 parts shaded instead of 1 (1/2)

Hope this helps!

Answer:

1

Step-by-step explanation:

because in 1 there is 1 dark box and 4 light box while others are irregular

Given f(x)=x^2, write the equation of the transformed function if g(x)=f(x-1)

Answers

Answer:

1. g(x) = (x - 1)²; translation of 1 unit to the right.

2. g(x) = 3^(x + 1) - 2; translation to the left of 1 unit and translation of 2 units down.

Step-by-step explanation:

1.

f(x) = x²

g(x) = f(x - 1)

g(x) = (x - 1)²

Since x was replaced by x - 1, g(x) is similar to f(x) with a translation of 1 unit to the right.

2.

f(x) = 3^x

g(x) = f(x + 1) - 2

g(x) = 3^(x + 1) - 2

Since x was replaced by x + 1, which is the same as x - (-1), there is a translation to the left of 1 unit. In addition, the -2 causes a translation of 2 units down.

Unit test
Complete the point-slope equation of the line through (2, 3) and (7, 4).
Use exact numbers.
y

Answers

Answer:

y - 4 = 1/5(x-7)

Step-by-step explanation:

Find slope:

4-3 / 7-2

1 / 5

y - y1 = m(x-x1)

y - 4 = 1/5(x-7)

mark brainliest pls

can someone help me with this?

Answers

Answer:

45

Step-by-step explanation:

We know that B is 90 because its a right angle, and in that triangle it has to add up to 180

So 180 - 90 = 90

90 ÷ 2 = 45

And thats a right angled triangle so it has a right angle and two equal angles.

Hope it helps :))

the answer is 45 how i know is i just do

To put money into a savings account, CDs, and stocks is to
A. be risk-adverse
B. invest
OC. secure assets
OD. diversity

Answers

I think the answer should be invest

36.4 divided by 109 1/5

Answers

Answer:

0.33

Step-by-step explanation:

36.4 divided by 109 1/5 is 0.33.

i ready 3 5/3 x (-8 1/3)=

Answers

Answer:

-350/9 (improper fraction)

-38 8/9 (mixed number)

Step-by-step explanation:

Converting to improper fractions :

3 5/33 x 3/3 + 5/39/3 + 5/314/3

    2. -8 1/3

-(8 x 3/3 + 1/3)-(24/3 + 1/3)-25/3

Multiplying them :

14/3 x -25/3-350/9 (improper fraction)-38 8/9 (mixed number)

Answer:

[tex]-38 \frac{8}{9}[/tex]

Step-by-step explanation:

[tex]3 \frac{5}{3} \times -8 \frac{1}{3}[/tex]

Convert to improper fractions:

[tex]\implies \dfrac{3 \times 3 +5}{3} \times -\dfrac{8 \times 3 +1}{3}[/tex]

[tex]\implies \dfrac{14}{3} \times -\dfrac{25}{3}[/tex]

Multiply the numerators and denominators:

[tex]\implies \dfrac {14 \times (-25)}{3 \times 3}[/tex]

[tex]\implies -\dfrac{350}{9}[/tex]

Convert back into a mixed number:

[tex]\implies -38 \frac{8}{9}[/tex]

Line segment SU is dilated to create S'U' using point Q as the center of dilation.

The scale factor of the dilation is:

Answers

If a point divides any line segment into two equal parts, then the point is the mid-point of that line. The ratio of the whole line segment and the distance from mid-point to any end point of the line segment is always 2:1, hence the scale factor of the dilation is 2.

To find the scale factor of the dilation, we need to find the ratio from initial point of the line segment to the distance from the point that is lie on that line segment.

Following points can be concluded from the given conditions.

It is shown in the figure that the distance from Q to S is 4 unit, and the distance from Q to S' is 8 unit.The distance from Q to U is 5 unit and the distance from Q to U' is 10 unit.U and S both are the mid-points of the line segment QU' and QS' respectively.

The ratio of the whole line segment and the distance from mid-point to any end point of the line segment is always 2:1, hence the scale factor of the dilation is 2.

To know more about the scale factor, please refer to the link:

https://brainly.com/question/20449840

A mass attached to a spring is pulled toward the floor so that its height above the floor is 10 mm (millimeters). The mass is then released and starts moving up and down reaching maximum and minimum heights of 20 and 10 mm , respectively, with a cycle of 0.8 seconds.
a) Assume that the height h(t) of the mass is a sinusoidal function, where t is the time in seconds, sketch a graph of h from t = 0 to t = 0.8 seconds. t = 0 is the time at which the mass is released.
b) Find a sinusoidal function for the height h(t).
c) For how many seconds is the height of the mass above 17 mm over one cycle?

(would anyone like to talk not to be weird or anything lol)

Answers

The answer would be C second height mass

Ali is 5 years older than salifu, If Salifu is y years.
how find Ali's age. Write answer in an equation

Answers

Ali’s age is Salifu’s age plus 5.

y+5=Salifu age

Suppose you are running in a marathon for charity, looking to raise at least $1500. People may sponsor you by donating either $15 or $25 for every mile you run. However, you cannot have more than 100 people sponsoring you for this marathon.
Now, create a system of inequalities using the above information (use x and y as the variables).

Answers

Answer:

See below ~

Step-by-step explanation:

Let :

x = people donating $15 when you runy = people donating $25 when you run

Two inequalities created are :

15x + 25y ≥ 15003x + 5y ≥ 300 [Simplified] ⇒ Inequality 1x + y ≤ 100 ⇒ Inequality 2

Solving

x + y ≤ 10015(x) + 25(x) ⩾ $1500

Let the people paying $15 be "x" and $25 be "y"

1st inequality

15(x) + 25(x) ⩾ $1500

2nd inequality

x + y ≤ 100

A grocery store has advertised a sale on ice cream. Each carton of any flavor of ice cream costs $5.25

A. If Millie buys one carton of strawberry ice cream and one carton of chocolate ice cream, write a
algebraic expression that represents the total cost of buying the ice cream.

B. Write an equivalent expression for your answer in part (a).

C. Explain how the expressions are equivalent.

Answers

Each carton of any flavour costs same

THE COST IS $5.25

so

Total cartons:-

One strawberry+One chocolate2

Total cost

2(5.25)$10.5

a bookstore carries 50 magazines. 34% of the magazines are womens magazines. how many woman’s magazines does the bookstore carry?

Answers

Answer:

50 * 34%

50 * 34/100

34 / 2 = 17

There are 13 buttons in a bag 9 buttons are white. 4 buttons are black Carol takes a button at random from the bag, and keeps it She now takes another button from the bag. Work out the probability that Carol takes a button of each colour.​

Answers

Step-by-step explanation:

Answer is case 1st:

P(of white button) = 9/13

P(of black button) = 4/12

Case 2nd

P(of black button) = 4/13

P(of white button) = 9/12

Explanation

Given: A Question

To find: Probability

Solution :Case 1st

If carol takes the first button is white

P(of picking a white button) = 9/13

And

P(of picking a black button) = 4/12

Case 2nd

If carol takes the first button is black

So, P(of picking a black button) = 4/13

And P( of picking a white button) = 9/12

Answer is Case 1st
P(of white button) = 9/13
P(of black button) = 4/12
Case 2nd
P(of black button) = 4/13
P(of white button) = 9/12

Explanation: Given : A Question
To find : Probability
Solution : Case 1st
If carol takes the first button is white
P(of picking a white button) = 9/13
And
P(of picking a black button) = 4/12
Case 2nd
If carol takes the first button is black
So, P(of picking a black button) = 4/13
And P(of picking a white button) = 9/12

I hope this helps.

With the metal  detector we find 70 Roman coins underground,30 are Etruscan,15 are Greek. What is the probability   ,that I draw a Greek coin?​

Answers

Answer:

30*100/70= 42.85% chances that you will draw a Etruscan coin and same way 42.85-100= 57%

Answer:

3/23

Step-by-step explanation:

Probability (Greek) :

Number of Greek coins / Total coins15 / 70 + 30 + 1515/1153/23

What is the domain and range for the following function and its inverse?

Answers

Answer:

I have recently learned about this and maybe I could help you if you have given the function but also let explain it.

Step-by-step explanation:

Domain is also known as pre image and also 'x' I.e first element.

Range is also known image and also y I.e second element .

And about inverse we just have to write second element at first and first element at second.

Hope it helps

For her 16th birthday party Patriot got a birthday cake with a radius of 10 centimeters. her dad cut her a slice of cake with a central angle of 20 degrees.




A. convert the angle measure of Patty's slice to radians.

B. find the area of Patty's slice of cake Leave your answer interms of pie.

C. Find the perimeter of Patty's slice of cake. ​

Answers

Answer:

Part A

To convert degrees to radians, multiply the given value by π/180°.

[tex]\begin{aligned}\implies 20^{\circ} & =20^{\circ} \times \dfrac{\pi}{180^{\circ}} \: \sf rad\\ & =\dfrac{1}{9} \pi \: \sf rad\end{aligned}[/tex]

Part B

Given:

r = 10 cm[tex]\theta=\dfrac{1}{9} \pi[/tex]

[tex]\begin{aligned}\textsf{Area of a sector of a circle} & =\dfrac12 r^2 \theta\\\\\implies \textsf{Area of slice of cake} & =\dfrac{1}{2} \cdot 10^2 \cdot \dfrac{1}{9} \pi\\\\& = \dfrac{50}{9} \pi \: \sf cm^2\end{aligned}[/tex]

Part C

Given:

r = 10 cm[tex]\theta=\dfrac{1}{9} \pi[/tex]

[tex]\begin{aligned}\textsf{Perimeter} & = 2r + \textsf{arc length}\\& = 2r + r \theta \\& = 2(10)+10\left(\dfrac{1}{9} \pi \right) \\& = 20 + \dfrac{10}{9} \pi \\& = 23.4906585\\& = 23.5\: \sf cm \:(1 \:dp)\end{aligned}[/tex]

Find the volume of the composite solid. Round your answer to the nearest hundredth.
The volume is about _____ cubic meters.
(5.1)

Answers

Answer:

97.92 m³ (nearest hundredth)

Step-by-step explanation:

The composite solid is a cube with a cone cut out.

Therefore, to find the volume of the solid, subtract the volume of the cone from the volume of the cube.

Volume of Cube

[tex]\textsf{Volume of a cube}=\sf s^3 \quad\textsf{(where s is the side length)}[/tex]

Given:

s = 5.1 m

Substitute given value into the formula:

[tex]\begin{aligned}\implies \sf V_{cube} & = \sf 5.1^3\\& = \sf 132.651\: m^3\end{aligned}[/tex]

Volume of Cone

[tex]\textsf{Volume of a cone}=\sf \dfrac{1}{3} \pi r^2 h \quad\textsf{(where r is the radius and h is the height)}[/tex]

Given:

[tex]\sf r=\dfrac{1}{2}(5.1)=2.55\:m[/tex][tex]\sf h = 5.1\:m[/tex]

Substitute given values into the formula:

[tex]\begin{aligned}\sf \implies V_{cone} & = \sf \dfrac{1}{3} \pi (2.55^2)(5.1)\\& = \sf 11.05425 \pi \: m^3\end{aligned}[/tex]

Volume of Composite Solid

[tex]\begin{aligned}\sf V_{solid} & = \sf V_{cube}-V_{cone}\\& = \sf 132.651-11.05425 \pi \\& = \sf 97.92304941...\\& = \sf 97.92 \: m^3 \: (nearest\:hundredth)\end{aligned}[/tex]

Volume of the cube

Side³(5.1)³132.65m³

For the cone

Radius of base=r=5.1/2=2.55mHeight=h=5.1m

Volume

1/3πr²h1/3(π)(2.55)²(5.1)34.71m³

Total volume of the figure

132.65-34.7197.94m³

The volume of a cylinder is 1,600pie cubic centimeters.the height is 16 centimeters.what is the radius of the cylinder?

Answers

Answer:

Radius = 10

Step-by-step explanation:

Volume of a cylinder=πr^2h

1600πcm^3=πxr^2x16

π cancels out

1600=r^2x16

1600/16=r^2

100=r^2

√100=r

r=10

what is the difference between -4-(-13)

Answers

Answer:

9

Step-by-step explanation:

- 4 - ( - 13 )

= - 4 + 13

= 13 - 4

= 9

Find the surface area of the rectangular prism

Answers

Answer:

82 inches squared

Step-by-step explanation:

7*3*2 = 42

7*2*2 = 28

3*2*2 = 12

42 + 28 + 12 = 82

DIRECTIONS: Use the numbers 0 through 9 (once and only once) in each blank space. Your goal is to form a way to say the target number.

Answers

The answers are 9, 6, 7, 0, 2, 5, 7, 1, 7, and 2 which makes the target value by putting in the blank box.

What is an arithmetic operation?

It is defined as the operation in which we do the addition of numbers, subtraction, multiplication, and division. It has a basic four operators that is +, -, ×, and ÷.

The target number is 54

= 9×6 = 54

= 8×7 - 02

= 5×7 + 19

= 27×2 = 54

Thus, the answers are 9, 6, 7, 0, 2, 5, 7, 1, 7, and 2 which makes the target value by putting in the blank box.

Learn more about the arithmetic operation here:

brainly.com/question/20595275

#SPJ1

please help, much appreciated!!!! (will mark brainliest)

Answers

Answer:

16 years

Step-by-step explanation:

Answer:

16

Step-by-step explanation:

A ticket resale service sells sports championship tickets at a markup of 250%. If a ticket originally costs $150, how much does the resale service charge after adding its markup to the price?

Answers

333 dollars I believe would be the answer.

Find the mass of a thin triangular plate bounded by the coordinate axes and the line if

Answers

The mass of a thin triangular plate bounded by the coordinate axes is 3 3/4.

How to calculate the mass?

It should be noted that mass simply means a quantity of matter that's in a body. It's the meaure of the inertia in the body.

In this case, from the complete question, the mass will be:

= 3/1000[1/24x⁴ - 25x² + 1000/3x]

= 15/4

= 3 3/4

Learn more about mass on:

https://brainly.com/question/19385703

#SPJ1

A triangle has sides with lengths of 8 meters, 12 meters, and 13 meters. is it a right triangle?

yes or no ?

Answers

Answer:

no

Step-by-step explanation:

sides of right triangle are in Pythagorean Theory  ex 3,4,5 or 5,12,13  0r 8,15,17

6. Clark wants to transform a shape on the
coordinate plane by using a rigid transformation.
Of the choices below, list any that Clark can use.
I.
Dilation
II. Rotation
III. Translation
IV. Reflection

Answers

Answer = 2,3,and 4

a rigid transformation is a geometric transformation that preserves the distance between every pair of points. The rigid transformations include rotations, translations, reflections, or any sequence of these (dilation changes the points for a bigger or smaller shape so it is NOT rigid)

David currently earns $25.00 per hour. He receives a 5% raise each year. He
wants to know how many years it will be until he is earning more than $30.00
per hour.

Answers

Answer:

4 years

Step-by-step explanation:

30 = 25 ( 1.05)^n

1.2 = 1.05^n

log 1.2  / log 1.05   = n years = 3.73    ~ 4 years

What is the slope of the line passing through (9,-6) and (5, 10)?

Answers

Answer:

-4

Step-by-step explanation:

m=y2-y1/x2-x1

m=10+6/5-9

m=16/-4

m=-4

Answer: 4/-4

Step-by-step explanation:

Slope Formula= (y2-y1/x2-x1)

10-6/5-9

4/-4

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Is median a measure of center or a measure of variation a measure of center b. measure of variation Dawn's credit card has an APR of 15%, calculated on the previous monthlybalance, and a minimum payment of 2%, starting the month after the firstpurchase. Her credit card record for the last 7 months is shown in the tablebelow.End ofmonthNewchargesPayment Finance Principalreceived charges paidNewbalancePreviousbalance50.00$1700.001$1700.00$0.00$0.00$0.00$1700.00$0.00$34.00$21.25$12.75$1687.253$1687.25$0.00$33.75$21.09$12.65$1674.604$1674.60$0.00$33.49$20.93$12.56$1662.045$1662.04$0.00$33.24$20.78$12.47$1649.576$1649.57$0.00$32.99$20.62$12.37$1637.207$1637.20$0.00$32.74$20.46$12.28$1624.92How much of the initial purchase has Dawn paid off over the 7 months?OA. $75.08OB. $20.46OC. $125.13OD. $200.212 What number does y stand for in this equation?2y - 7 = 35A28B.2114D9 10,14,18,22 find the next two terms can someone help I'm stuck on this question thanks State where this following question is a fact, opinion or informed opinion. "Conspiracies are perennial favourite for television producers because there is always a receptive audience? Knowing how many goals were missed is important but knowing where those pucks went into the net is even more important because... What does it mean to bridge to something positive when an interviewer asks you something negative during an interview? a shape is shown on the centimetre grid below work out the area of the shape after it has been enlarged by scale factor 2 state the units of your answer What is the speed of a sound wave that has a wavelength of 2 m and a frequency of 170.5 Hz? Josh invested $450 at 0.5% simple interest for 2 years. How much is his total account balance at the end of 2 years? Please help me? =) 0R(r-12)>R-(3r + 5)+PSSolve for x:OWhat is mZP? HELP! I have 5 minutes to submit this!Read the excerpt from "It Sifts from Leaden Sieves." It fills with Alabaster Wool The Wrinkles of the Road---Which answer best interprets the purpose of this imagery?A) It creates an image of sheep.B) It creates an image of the snow as soft and fluffy.C) It shows that snow is falling heavily.D) It shows that snow is falling slowly. -[98 + (-67) - (32) + (-12) - 5] cual es el resultado? ayuda Jaxon is flying a kite, holding his hands a distance of 3.25 feet abovethe ground and letting all the kite's string play out. He measures theangle of elevation from his hand to the kite to be 24. If the string fromthe kite to his hand is 105 feet long, how many feet is the kite above theground? Round your answer to the nearest tenth of a foot if necessary. Aiden earned $334.40 at his job when he worked for 16 hours. How much money did he earn each hour? uh... can you help me with this all? or you can only the one you know. You and your roommate decide to reduce your environmental impact by recycling more, going paperless, and using environmentally safe cleaning products. You know you also can use green computing tactics to reduce electronic waste, minimize power use, and more. Create a list of five reasons why you should add green computing to your efforts. List 10 ways you can apply green computing to your daily life. 11. Write an equation of the line with x-intercept (-7,0) and y-intercept (0,5). is there anything i could change about this?