1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
galben [10]
3 years ago
9

Suppose the second hand on a clock is 3 inches long. Find the linear velocity of the tip of the second hand.

Mathematics
1 answer:
Eduardwww [97]3 years ago
6 0

Answer:

  π/10 in/s ≈ 0.314 in/s

Step-by-step explanation:

The circumference of the circle it traverses is given by the formula ...

  C = 2πr

Substituting the given radius, we find the distance traveled in 60 seconds to be ...

  C = 2π(3 in) = 6π in

Then the linear speed is ...

  speed = distance/time = (6π in)/(60 s) = π/10 in/s

You might be interested in
PLEASE HELP ME FOR BRAINLIEST ANSWER An architect designs a rectangular flower garden such that the width is exactly​ two-thirds
Oksanka [162]

Answer:

Length: 84 ft

Width: 56 ft

Step-by-step explanation:

Let's define some variables first.

Call the length l and width w.

We know that w = 2/3l. Therefore, we can express w in terms of l with this expression.

Now, let's set up an equation. The flower garden is rectangular, and 280 feet of fencing are used to enclose the garden. This represents perimeter.

Remember the formula for perimeter of a rectangle: 2l + 2w

Let's substitute 2/3l for w:

2l + 2*2/3l = P

2l + 4/3l = 280

2 4/3l = 280

10/3l = 280

l = 84

Now, we know that the length is equal to 84 feet. We can multiply 84 feet by 2/3 to find the width.

84*2/3 = 56

Length: 84 ft

Width: 56 ft

Let's plug these values into the formula and see if they give us the correct perimeter:

2l + 2w = P

2*84 + 2*56 = P

168 + 112

= 280 feet

These are the correct dimensions!  

Hope this helps! You can reach out to me if you have further questions or concerns! :)

6 0
3 years ago
Fill in the missing numbers to create equivalent ratios.
jasenka [17]

Step-by-step explanation:

The way to find missing numbers in equivalent ratios is to multiply the means (the first denominator and the second numerator) and multiply the extremes (the first numerator and the second denominator). It sounds really complicated, but it is quite simple =)

2/5 = x/10

The means in this equivalent ration are 5 and x. The extremes are 2 and 10.

5x = 20

Now solve =)

x = 4

That was pretty simple. Let's move on to the next one. Do exactly the same thing here:

4/10 = 6/x

60 = 4x

15 = x

That was pretty simple, too! Keep going!

6/15 = x/25

15x = 150

x = 10

All of these should be equal, so check them by dividing:

2/5 = 0.4

4/10 = 0.4

6/15 = 0.4

10/25 = 0.4

They all check out, so these are your answers: 2/5, 4/10, 6/15, 10/25


I really hope this helps you =)

8 0
3 years ago
Read 2 more answers
Sixty-five randomly selected car salespersons were asked the number of cars they generally sell in one week. Fourteen people ans
vladimir2022 [97]

Answer:

There is no following,  we have data of all the people

Step-by-step explanation:

There where Sixty-five salespersons asked and the if we add all the persons that where asked  it is the same.  So there is no following

Fourteen people answered that they generally sell two cars; 14

nineteen generally sell three cars; 19

twelve generally sell four cars; 12

nine generally sell five cars; 9

eleven generally sell six cars 11

Adding  14+19+12+9+11=65 persons

8 0
3 years ago
Tangent please help me
atroni [7]
A^2+ b^2= c^2
24^2+b^2=25^2
576+b^2=625
Sub 576
b^2= 49 b=7
6 0
3 years ago
The can shown has a diameter of 3 inches and a height of 5 inches. Find the lateral surface area of the can.
beks73 [17]

Answer:

Lateral surface area of can = 47 inch² (Approx.)

Step-by-step explanation:

Given:

Diameter of given can = 3 inches

Height of given can = 5 inches

Find:

Lateral surface area of can

Computation:

Radius of can = 3 / 2 = 1.5 inch

Lateral surface area of can = Lateral surface area of cylinder

Lateral surface area of cylinder = 2πrh

Lateral surface area of can = 2πrh

Lateral surface area of can = 2(3.14)(1.5)(5)

Lateral surface area of can = 47.1

Lateral surface area of can = 47 inch² (Approx.)

6 0
3 years ago
Other questions:
  • 9a-ab+5b if a=2 and b=7
    5·2 answers
  • tara has 2000 in her account david has one-tenth as much as tara in his savings account. how much does david have in his account
    13·2 answers
  • If 9 pairs of jeans cost $121.50 find the cost of 5 pairs
    8·2 answers
  • Which angle is vertical to 3 in the given figure? You may assume that the lines are straight.
    7·1 answer
  • The cost of a new math textbook and a study guide together is $58. Three of the math textbooks and two study guides cost $165. H
    7·1 answer
  • Which of these amounts would NOT be a "y" coordinate for The Jeans Source?
    8·2 answers
  • I neeeeeeeeed helpppppooo Need help asappp:((
    6·1 answer
  • 2
    7·1 answer
  • 1 escribe el numero entero asociado a cada situacion a) 10 metros bajo el nivel del mar b)perdio 5000 pesos c)40° bajo cero d)ga
    10·1 answer
  • How far is the jump from 45 from 65
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!