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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

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In a supermarket, small wedges of cheese each weighing 0.25kg are cut from tins of cheese that weighs 2.5kg. How many wedges can
juin [17]

Answer:

10 wedges

Step-by-step explanation:

To find the number of wedges, the total weight should divided by weight of  one wedge.

\text{Number of Wedges = $2.5 \div  0.25$}\\

                              = \dfrac{2.5*100}{0.25*100}\\\\\\=\dfrac{250}{25}\\\\\\= 10 \ \sf wedges

4 0
1 year ago
Will give brainliest
klio [65]

Answer:

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8 0
3 years ago
Use the Law of Sines to solve the triangle.<br> 6.) A=60 degrees, a=9, c=10
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SinA /a = sin C / c
sin 60/9 = sin C / 10
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8 0
3 years ago
a marathon runner completes a 42km course at an average speed of 7km/h calculate the time taken to complete the course.
Ahat [919]

Answer:

6 hours

Step-by-step explanation:

42/7=6h

5 0
2 years ago
If quadrilateral adqu is congruent to quadrilateral teki then quad is congruent to ____
Xelga [282]

Answer:

KITE

Step-by-step explanation:

We are given that,

Quadrilateral ' adqu ' is congruent to quadrilateral ' teki '.

i.e. adqu ≅ teki

Now, when two figures are congruent the position of the letters are very important.

Using the positioning of the letters, we will find the quadrilateral congruent to ' quad '.

So, we see that the correspondence of letters is given by q → k, u → i, a → t and d → e.

Therefore, quad ≅ kite.

Hence, Quadrilateral ' quad ' is congruent to quadrilateral ' kite '.

7 0
3 years ago
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