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
Nata [24]
3 years ago
10

A simple model of the core of a tornado is a right circular cylinder that rotates about its axis. If a tornado has a core diamet

er of 160 feet and maximum wind speed of 150 mi/hr (or 220 ft/sec) at the perimeter of the core, approximate the number of revolutions the core makes each minute.
Question 8 options:

25.3 rev/min

24.3 rev/min

26.3 rev/min

23.3 rev/min
Mathematics
1 answer:
mihalych1998 [28]3 years ago
7 0

Answer:

26.3 rev/min

Step-by-step explanation:

The angular velocity (ω) is the linear velocity divided by the radius ( r= 80 feet)

ω = 220/80 = 2.75 rad/s

The angular velocity and the frequency are related by:

ω = 2π*f

2.75 = 6.28*f

f = 2.75/6.28

f = 0.438 rev/s * 60s/1min

f = 26.3 rev/min

You might be interested in
SOMEONE PLEASE HELP ME WITH THIS QUESTION 2.5x - 3 = 2x - 2 <br>I don't get what x is equal to
Luda [366]

Answer:

2

Step-by-step explanation:

Use the property of equality :)

5 0
3 years ago
Megan and Suzanne each have a plant. They track the growth of their plants for four weeks. Whose plant grew at a faster rate, an
CaHeK987 [17]
In science, rate is a<span> quantity measured with respect to another measured quantity. For the data given, we get the rate of each by calculating the slope. We do as follows:

Megan's rate = 12 - 4.5 / 4 -1 = 2.5 inches per week
Suzanne's rate = 11 - 5 / 4-1 = 0.5 inches per week

Therefore, the plant that grew at a faster rate would be </span><span>Megan’s at 2.5 inches per week.</span>
4 0
3 years ago
Read 2 more answers
Kimberly traveled 28 miles.She traveled twice as many miles as Joe but one third as many miles as Brina .How many miles did Joe
marishachu [46]
Kimberly-28
2x Kimberly( Joe)-28/2=14
Brina-I don’t know:((
It’s either 28/‘33=9.33
Or 28*.33=84.
7 0
3 years ago
What is the solution to the equation -2(3x-5)&lt;34
Olegator [25]
Divide by -2: 3x-5 < -17
Add 5: 3x < -12
Divide by 3: x < -4 (answer)
7 0
3 years ago
A set of dining room table and chairs is on sale for 50 off the original price. If $1400 was the price for the set of table and
kykrilka [37]
$2,800 because you would just add 1400 and 1400
4 0
3 years ago
Other questions:
  • Please help me on this question as soon as possible if you don't know the right answer for this question do not answer this ques
    9·1 answer
  • Which best describes a number that cannot be irrational
    10·2 answers
  • The cosine of 23° is equivalent to the sine of what angle
    12·1 answer
  • If r does not equal 0, which of the following polar coordinate pairs represents the same point as the point with polar coordinat
    10·1 answer
  • The figure below shows one of the paving stones in Jack's garden.
    8·1 answer
  • Simplify the expression x^2+x-2/8x^2+4x/3x^2+10x+8
    10·1 answer
  • A restaurant offered cooking classes on 24 of the 30 days in November. What decimal is equivalent to the fraction of days in Nov
    8·1 answer
  • Help will mark brainliest
    6·1 answer
  • Roger bought 4 bowls at a store if each bowl cost $1.60 and he paid with a twenty dollar bill how much change should he get back
    10·2 answers
  • 2. Which expression is equivalent to -5(x + 10)?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!