An athlete swings a 7.9 kg ball horizontally on the end of a rope. The ball moves in a circle of radius 0.9 m at an angular speed of 0.27 rev/s.
What is the tangential speed of the ball? Answer in units of m/s.

part 2
What is its centripetal acceleration? Answer in units of m/s2.



this is physics

Answers

Answer 1

The tangential speed of the ball is 1.5267

The centripetal acceleration is 2.5897 m/s²

How to solve for the tangential speed

Mass of the ball is m = 7.90 kg

ball moves in a circle having radius r = 0.9 m

angular speed is ω = 0.27 rev /s

given that 1 revolution = 6.283 rad / sec

0.27 rev / sec = ?

ω = 1.696 rad / sec

a. The tangential speed Velocity = rω

w =  1.696

r = 0.9

= 1.696  * 0.9 m

= 1.5267 m / s

b ) centripetal acceleration a = v² / r

= (1.5267 m/s)^2 / 0.9 m

= 2.3308 / 0.9

= 2.5897 m/s²

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Related Questions

Indicate in standard form the equation of the line passing through the given points, writing the answer in the equation box below. E(–2, 2), F(5, 1)

Answers

Answer:

dd

Step-by-step explanation:d

Answer:

Step-by-step explanation:

a0 - x-y=3

The radius of a hula hoop is 15in what is the area of a hula hoop in terms of pi

Answers

The area of the hula hoop is equal to 450π square inches.

What is the area of a hula hoop?

A hula hoop is a toy with the form of a circle, whose area (A), in square inches, has to be found. The area of a circle is described by the following formula:

A = 2π · R²

Where R is the radius of the hula hoop, in inches.

If we know that R = 15 inches, then the area covered by the hula hoop is:

A = 2π · (15 in)²

A = 450π in²

The area is equal to 450π square inches.

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55555555555555555555555555555555555555555555555555555555555555555555555555x0

Answers

Answer:

Step-by-step explanation:

Ok:

1. Anything times zero always equals zero.

So: 55555555555555555555555555555555555555555555555555555555555555555555555555x0=

Answer:0

The equation y – 4 = 6(x + 7) represents a linear function. What is the y-intercept of the graph of the equation?

Answers

Step-by-step explanation:

In general equation, y = mx+c, c represents y-intercept.

So, y-4 = 6x+42

y = 6x+46

So, y intercept will be 46

Joseph invested $7,850 in an account that pays 7.5% interest per year. How much interest will Juan have earned at the end of 36 months?

Answers

Juan have earned of interest after 36 months at the rate of 7.5% interest per year.

What is Simple Interest?

Simple interest is a quick and simple formula for figuring out how much interest will be charged on a loan. The daily interest rate, the principle, and the number of days between payments are multiplied to calculate simple interest. The formula of simple interest is as follows:

S.I = p×r×t

Where p is principle value, r is rate and t is time in years.

Here, the principle amount is $7,850 and rate is 7.5% i.e  [tex]\frac{7.5}{100}=0.075[/tex] and time is 36 months i.e 3 years.

Now, putting the values,

SI = 7850×0.075×3

= $ 1766

Therefore, the interest Juan have earned in 36 months is $1,766.

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An entry level architect's annual pay is $47,008 based on 52 weeks per year. Due to the economy, his company is having to cut back on the number of weeks that it employs its architects. If the firm cuts the work year to 48 weeks but keeps the same rate of pay, how much should the architect expect his annual pay to decrease? Round your answer to the nearest dollar.

Answers

After the firm work year reduced to 48 weeks at the same rate, the architect annual pay decrease to 43,392 dollars.

How to find the annual pay decrease?

An entry level architect's annual pay is $47,008 based on 52 weeks per year. Due to the economy, his company is having to cut back on the number of weeks that it employs its architects

The company cuts the work year to 48 weeks but keeps the same rate of pay.  The amount the architect should expect his annual pay to decrease can be calculated as follows:

Let's find the rate.

Therefore,

52 weeks = 47008

1 week = ?

cross multiply

rate = 47008 / 52

rate = 904 dollars per weeks

He collects the same rate after the company cuts the work year to 48 weeks.

Therefore,

annual pay of the architect after the cut = 48 × 904

annual pay of the architect after the cut = 43,392 dollars

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I really do not understand these questions at all watched a video and attempted it still got it wrong

Answers

Answer:

540 cm₂

Step-by-step explanation:

Area of right triangular prism:

       [tex]\sf \boxed{Area = (b_1+b_2+b_3)*l + bh}\\\\[/tex]

[tex]\sf \text{where $b_1$, $b_2$ and $b_3$ are the sides of the triangle l is the length of the rectangle}\\\\ \text{and b is the base of the triangle and h is the altitude of the triangle}[/tex]

    b₁ = 12 cm ; b₂ = 5 cm ; b₃ = 13 cm

   l = 16 cm  ;  b = 12 cm and h = 5 cm

 

Area  = (12 + 5 + 13)*16 + (12*5)

          = 30*16 + 60

          = 480 + 60

          = 540 cm²

Suppose you are designing a cardboard box that must have a volume of 18 cubic feet. The cost of the cardboard is $6 per square foot. How much will the material for each box cost?

Answers

Answer:

I think its 108 each Box is going to cost 108

What is the value of x?
Thank you.

Answers

Answer:

x would be 3 by 2

I am 90% sure but I hope this helps!

Determine the domain and range of the following parabola. f(x)=−3x2−30x−74

Answers

Step-by-step explanation:

1. if to rewrite the given equation, then

y= -3(x+5)²+1;

2. the vertex of the parabola is (-5;1) and it is the highest point. Then

3. domain: x is any value, x∈(-∞;+∞);

range: y not greater than 1, y∈(-∞;1].

For the parabola f(x) = -3x² - 30x - 74, the domain is all real numbers (-∞, ∞), and the range is also all real numbers (-∞, ∞).

To determine the domain and range of the given parabola f(x) = -3x² - 30x - 74, we need to understand the behavior of parabolas.

The domain of a function represents all the possible x-values for which the function is defined. In this case, there are no restrictions on the x-values for the given quadratic function. Therefore, the domain is all real numbers, expressed as (-∞, ∞).

The range of a function represents all the possible y-values that the function can produce. For a parabola, if the coefficient of the squared term (in this case, -3) is negative, the parabola opens downward. Since the coefficient is negative, the parabola will have a maximum value. In this example, there is no minimum or maximum specified; thus, the range will also be all real numbers.

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How long will Suban need to leave a $10 000 investment in the bank at 5% per

year simple interest for it to grow to $15 000?
a. 10 years c. 5 years
b. 100 years d. 50 years

Answers

Suban need to leave $10000 investment in the bank at 5% per year simple interest for 10 years so that it grows to $15000

According to question,

Principal (P) = 10,000

Rate of interest (I) = 5%

Interest = Amount - Principal

= 15000 - 10000

= 5000

We need to find the number of years

T = ?

Interest = P * R * T / 100

5000 = 10000 * 5 * T / 100

T = 10 years

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what is the equation and solution please? ​

Answers

Answer:

y=3x+1

y=-17

Step-by-step explanation:

y=3x+1

7=3(2)+1

7=6+1

7=7

y=3(-6)+1

y=-18+1

y=-17

Hopes this helps please mark brainliest

for any integer p, show that p^3+11p will always be a multiple of 6

Answers

By the principle of mathematical induction, it has been proved that

[tex]p^3 + 11p[/tex] is divisible by 6

What is Principle of mathematical induction?

Let the statement be given by P(n). At first P(n) is proved to be true for 1. Then it is assumed that P(n) is true for all n. If P(n) is true for (n+1) then by Principle of Mathematical induction, P(n) is true for all natural numbers

The given expression is [tex]p^3 + 11p[/tex]

For p = 1

[tex](1)^3 + 11 \times 1\\12[/tex]

which is a multiple of 6

Let it be true for p = m

[tex]m^3 + 11m[/tex] is a multiple of 6

[tex]m^3 + 11m = 6k[/tex], where k is any integer

For p = m + 1

[tex](m+1)^3 + 11(m+1) \\m^3+3m^2+ 3m +1+11m+11\\m^3+11m +3m^2+3m+12\\m^3+11m + 3m(m+1) + 12[/tex]

Now,

[tex]m^3 + 11m[/tex] is divisible by 6

We know that the product of two consecutive integers are divisible by 6

[tex]3m(m+1)[/tex] is divisible by 6

12 is divisible by 6

[tex](m+1)^3 + 11(m+1)[/tex] is divisible by 6

So it is true for p = m + 1

By the principle of Mathematical induction, it is true for all natural numbers and eventually for all integers

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If the function f(x) is thje absolute value of 3 more than the value of x. Select all the true statements. A. The x-intercept of the function is 3.

Answers

The absolute value function is represented by f(x) = |x+3| and the

x-intercept of the function is -3.

The function is represented as absolute value of 3 more than x.

hence the function 3 more than x is given by

f(x)=x+3

Now for absolute function:

f(x)=|x+3|

The graph of the function will have no negative value for f(x).

The graph will pass through the point (0,3) which is the y-intercept.

The x-intercept is at (-3,0) .

The domain of the function is all real vales of x.

The range of the function is (0,∞)

The parent function is given by y=|x| .

An procedure that establishes the absolute value of a number or variable is known as a modulus function. It produces the variable count's size.

It is also known as an absolute value function. No matter what input was given to this function, a positive result is always the result.

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y is directly proportional to x3 When x = 10, y = 250

(a) Find a formula for y in terms of x.

Answers

The formula for y in terms of x is a cubic equation:

y = 0.25*x³

How to find the relation between x and y?

We know that y is directly proportional to x³, then we can write the equation:

y = k*x³

Where k is the constant of proportionality.

In this case, we know that when x = 10, the value of y is 250, then we can replace these values in the above equation to find the value of x:

250 = k*10³

250 = k*1,000

Dividing both sides by 1,000 we get:

250/1,000 = k

0.25 = k

Then the equation is:

y = 0.25*10³

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Does anyone know what the Answer is...
45 ÷ ? = 8

Answers

Answer:

Step-by-step explanation:

Instead you do 45 divided by 8

And you will get 5.625

Hey!! The answer is 5.625!! For future reference anytime you need to find a blank in division and they give you the answer- just divide by the other number—— for example: 45/8= 5.625

Add.

3/5+7/8+3/10

Enter as a mixed number in simplest form.

Answers

Answer:71/40 or 1 31/40 or 1.775  

Step-by-step explanation:1 31/40 is the mixed number

4
The height of a cone is two times its base diameter. What is the volume of the cone in terms of its base radius r

Answers

                  The volume of cone will be [tex]\frac{88r^{3} }{21}[/tex]

Cone:

        A cone is a three-dimensional geometric shape that tapers smoothly from a flat base.

Given,

        The height of a cone is two times its base diameter.

         we have to find the volume of cone in terms of base radius.

let us assume the base radius of cone is equal to r units

                    so diameter(d) of cone will be, d= 2r units

so,

     height(h) of cone will be equal to, h = 2d units

                                                           h = 2x2r units

                                                           h = 4r  units

We know,

              Volume of the cone(V) = [tex]\pi r^{2} h/3[/tex]

                Where,

                             r = radius of base

                            h = height of cone

                            π = 22/7

Thus by using formula,

                                   Volume of cone(V) = [tex]\pi r^{2} h/3[/tex]

                                                                 = 22/7 * [tex]r^{2}[/tex] * 4r/3

                                                                 = 88[tex]r^{3}[/tex]/21

                                                                 = [tex]\frac{88r^{3} }{21}[/tex]

  Hence,

              The volume of cone will be [tex]\frac{88r^{3} }{21}[/tex]

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A store is having a sale on chocolate chips and walnuts. For 3 pounds of chocolate chips and 2 pounds of walnuts, the total cost is $14. For 5 pounds of
chocolate chips and 6 pounds of walnuts, the total cost is $28. Find the cost for each pound of chocolate chips and each pound of walnuts.
Cost for each pound of chocolate chips: $
Cost for each pound of walnuts: $

Answers

Cost for each pound of chocolate chips is equal to $3.5.

Cost for each pound of walnuts is equal to $1.75

How to determine the cost for each pound of chocolate chips and each pound of walnuts?

In order to solve this word problem, we would assign variables to the cost for each pound of chocolate chips and each pound of walnuts respectively, and then translate the word problem into algebraic equation as follows:

Let the variable c represent the amount of cost for each pound of chocolate chips.Let the variable w represent the cost for each pound of walnuts.

For 3 pounds of chocolate chips and 2 pounds of walnuts, we have:

3c + 2w = 14              .....equation 1.

For 5 pounds of chocolate chips and 6 pounds of walnuts, we have:

5c + 6w = 28      .....equation 2.

Solving the system of equations by using the elimination method, we have:

3 × (3c + 2w = 14) = 9c + 6w = 42

                                5c + 6w = 28_

4c = 14

c = 14/4

c = $3.5

For the cost for each pound of walnuts, we have:

3c + 2w = 14

3(3.5) + 2w = 14

10.5 + 2w = 14

2w = 14 - 10.5

2w = 3.5

w = 3.5/2

w = $1.75.

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1.3 x 10 to the power of negative 3

Answers

Answer:

The answer to this problem is 0.0013.

A rectangular garden has an area of 72 square yards. The dimensions of the
garden are not prime numbers. What are the possible dimensions of the
garden

Answers

Answers:

1 yard by 72 yards

4 yards by 18 yards

6 yards by 12 yards

8 yards by 9 yards

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

Explanation:

Let's list out all the ways to multiply to 72 using two values

1*72

2*36

3*24

4*18

6*12

8*9

Then cross off something like 2*36 since 2 is prime. We also cross off 3*24 since 3 is prime.

We're left with this list

1*72

4*18

6*12

8*9

which represent the possible dimensions of this rectangle.

Keep in mind that 1 is not prime.

Michelle sells new and used kayaks. She makes a 10.5% commission on every kayak she sells and she also gets paid $495.50 per week.
a) Develop an equation for the way Michelle is paid.
b) Last month, the total value of the kayaks she sold was $19 425. Use the equation you’ve developed to find out how much Michelle was paid for that month.

Answers

Part a

The equation for the way Michelle is paid is

Total weekly payment y = 495.50 + 0.105x

Part b

The total payment in a  month = $4021.625

She makes a 10.5% commission on every kayak she sells

Consider the total value of kayaks she sold = x

The rate of commission = 10.5%

The amount of commission = x × (10.5/100)

= 0.105x

The weekly fixed payment = $495.50

Total weekly payment y = 495.50 + 0.105x

Part b

The total value of the kayaks she sold = $19425

Total number of weeks in a month = 4

Then the total payment in a month = (4 × 495.50) + (0.105×19425)

= 1982 + 2039.625

= $4021.625

Hence,

part a

The equation for the way Michelle is paid is

Total weekly payment y = 495.50 + 0.105x

Part b

The total payment in a  month = $4021.625

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Determine which set of side measurements could be used to form a triangle.

8, 14, 20
7, 8, 15
2, 19, 22
1, 4, 8

Answers

The set of side measurements that could be used to form a triangle are 8, 14, 20.

How can the set of side measurements  be identified?

The concept that will be used is the concept of triangle inequality theorem.

To know if the given 3 side lengths are a triangle, then the use of the  triangle inequality theorem comes into play.

This rule tells us that when we sum 2 sides of a triangle  the value must be greater than the third side.

Then this rule can be applied as

The first option; 8, 14, 20

a+b>c  = 8+14>20

a+c>b  =  8+20>14

b+c>a   = 20+14>8

Therefore, first option is correct.

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Ashley and Laura are 60 miles apart, traveling towards each other. If Laura travels 12 mph
and Ashley travels 8 mph how long until they meet?
hours

Answers

The time taken by Ashley and Laura to meet each other is 3 hrs

Relationship Between Time, Speed & Distance:

The speed of an object tells us how slow or fast an object moves. The formula for speed is given below

           Speed = Distance/Time  

The speed of an object is directly proportional to Distance and Inversely proportional to Time. Hence,

           Distance = Speed X Time  

Here we have,

Ashley and Laura are 60 miles apart, traveling toward each other

This means the distance between Ashley and Laura is 60 miles

Speed of Laura = 12 mph

Speed of Ashley = 8 mph

Let us assume that Both Ashley and Laura meet after t hours

Then

The distance traveled by Laura in t hours = 12 mph × t hrs = 12t m

The distance traveled by Ashley in t hours = 8 mph × t hrs = 8t m

As we know the distance between Laura and Ashley is 60 miles

=>  12t m + 8t m = 60 miles

=>  20t miles = 60 miles

=> t = 60/20

=> t = 3hrs

Therefore,

The time taken by Ashley and Laura to meet each other is 3 hrs

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Find the y-coordinate of the y-intercept of the polynomial function defined below.

f(x) = 3 + 5x² + 4x^4 - 3x³ - 6x

Answers

Answer:

3

Step-by-step explanation:

When you substitute 0 in for x in the equation. You are left with f(0) = 3.

can someone
help with this

Answers

Step-by-step explanation:

let angles of a triangle a=86

b= 180-3z , c= 180-4z

a+b+c = 180 {angle sum property}

86 +180+180-3z-4z=180

446 -7z = 180

-7z = -266

[tex]z = \frac{ - 266}{ - 7} = 38[/tex]

so other angle are

3z = 3 x 38 = 114

4z = 4 x 38 = 152

What is the equation of a circle with a center at (-4, 0)
that passes through the point (-2, 1)?
O x² + (y + 4)² = √√5
O (x-1)² + (y + 2)² = 5
O (x + 4)² + y² = 5
O (x + 2)2 + (y - 1)² = √5

Answers

The equation of a circle with a center at (-4, 0) that passes through the point (-2, 1) is (x + 4)² + y² = 5. Option C is correct.

The standard equation of a circle is given by:

(x – h)² + (y – k)² = r²

Where (h, k) is the center of the circle and r is the radius.

We are given:

The circle has a center at (–4, 0) and passes through the point (–2, 1).

Substitute (h, k) with (–4, 0) in the above equation, we will get;

(x – (-4))² + (y – 0)² = r²

(x + 4)² + y² =  r²

Substitute (x, y) with (–2, 1) in the above equation to get the value of r:

(-2 + 4)² + 1² =  r²

(2)² + 1² =  r²

r² = 5

Put the value r² = 5 in (x + 4)² + y² =  r², we will get;

(x + 4)² + y² =  5

So, the equation of the circle is (x + 4)² + y² =  5.

Thus, the equation of a circle with a center at (-4, 0) that passes through the point (-2, 1) is (x + 4)² + y² = 5. Option C is correct.

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2 market women shared a basket full of oranges in order to sell them.the share of the first woman is twice the other if the are 300 oranges in the basket what is the share of each women

Answers

Answer:

Step-by-step explanation:

no idea

The number of oranges with first women are 200 and the number of oranges with other women are 100.

What is an equation?

In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.

Given that, 2 market women shared 300 oranges.

The share of first woman is twice the other.

Let the number of oranges with other women be x.

Then, the number of oranges with first women will be 2x.

Now, x+2x=300

3x=300

x=100

So, 2x=200

Therefore, the number of oranges with first women are 200 and the number of oranges with other women are 100.

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log 4(x+8) + log 4(x+5) = 1
rewrite the equation

Answers

According to the product rule of logarithms, the given equation is written as,  log₄(x² + 13x + 40) = 1

Product rule of logarithm

Basically, the product rule states that the sum of two logarithms is equal to the product of the logarithms.  

And it is the first law and it can be represented as;

logₐ(x) + logₐ(y) = logₐ(xy)

Given,

Here we have the logarithmic equation log 4(x+8) + log 4(x+5) = 1

And we have to rewrite the equation.

Here we have the logarithmic equation,

=> log₄(x+8) + log₄(x+5) = 1

By using the product property of logarithms, 

We have to rewrite the equation as,

=> log₄(x+8)(x+5) = 1

Now, we have to expand (x+8)(x+3) using the FOIL Method.

Then we get,

=> log₄(x² + 5x + 8x + 40) = 1

=> log₄(x² + 13x + 40) = 1

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f(x)=−x 2 −2x+3 \text{Find }f(1) Find f(1)

Answers

f(x) = -2 - 2 + 3

f(1) = -1
Other Questions
How do you find gradient of a linear graph? Make a the subject of p= 3a+5/4-a Large marble chips (calcium carbonate) were reacted with 1M hydrochloric acid at 24 C. The volume of carbon dioxide evolved was measured at regular intervals.a) Describe one other way of measuring the course of this reaction which does not involve measuring the volume of carbon dioxide given off.b) Describe how the following would affect the speed of this reaction, ( In each case, assume that all other factors are kept the same.)i. using 0.05 M hydrochloric acidii. using smaller marble chipsiii. carrying out the reaction at 22 C. 1. There are many reasons why Perseus was a culturally important character to the Greeks. 2. One reason is that he showed traits that were valued. 3. Perseus showed his truthfulness and courteousness when he promised to bring back Medusas head as a gift, his bravery when he faced Medusa, and his gentleness when he fell in love with Andromeda. 4. All of these characteristics were important to ancient Greeks.Where should this quotation be placed to develop the paragraph about Perseus?Perseus is described as brave and truthful, gentle and courteous (Mabie 4).after sentence 1after sentence 2after sentence 3after sentence 4 What issue initially created a source of contention and division for Muslims into Sunni and Shi'a? which term is used to describe a call provision in which the issuer is prevented from calling a portion or the entire issue for several years during the early years of the bond issue? sinking fund provision declining call provision deferred call provision In colonial america people with health disorders were referred to as distracted persons or lunatics and we most often cared for by their families.a. Trueb. False Briefly explain President Harry Trumans foreign policy on communism. Describe the example of communist aggression in an effort to seize territory that first tested Trumans policy. while researching careers on the internet, tony decided to use more than one search engine because Explain the effects of Henry Fords assembly line on production and consumerismHOW did Henry Fords Assembly line change production HOW did Henry Fords Assembly line lead to a culture of consumerism Organizations increase by sharing information with employees at all levels and giving them the authority to make decisions. Sodium reacts vigorously with water; which other elements also do and why? How many liters do 1.55 g of O2 occupy at STP? Alex wants to measure the nominal 1998 gdp of $993 billion in 2008 dollars. From the data he gathered, he knows the deflator for 1998 is 30 and for 2008, it is 74. What is the value of 1998 gdp in 2008 dollars?. Determine whether the series converges or diverges Please, check the image anna has had diabetes for over 30 years, is of a healthy weight, and manages her diabetes by regular insulin injections. anna most likely has Find the value of 8y +3 given that -11y-9=2. Simplify your answer as much as possible.p Which of the following is a common medical procedure in a hospital setting? a. Ventilator b. Catheter c. Intubation d. IV e. All of these. e. All of these. a distributor of computer monitors purchases the monitors from an overseas supplier under a continuous review system. the average demand for a popular computer monitor is normally distributed with a mean of 50 units a day and a standard deviation of 10 units a day. it costs $75 to process each order and there is a 16 day lead time. the holding cost for each monitor is $20 per year and the distributor wishes to maintain a 90% service level. the distributor operates 300 days in a year. use the information in scenario 9.10. if lead-time increases by nine days, what is the reorder point needed to maintain a 90% service level? who are ligma and dez