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
LekaFEV [45]
3 years ago
15

A wheel is rotating at 3 radians/sec, and the wheel has a 42-inch diameter. To the nearest foot per minute, what is the linear s

peed of a point on the rim?
Mathematics
1 answer:
Yuki888 [10]3 years ago
3 0

A point on the rim would travel a distance equal to the circumference of the wheel. The wheel has diameter 42 in, so the circumference is 42π in.

2π radians corresponds to one complete revolution of the wheel. So the wheel has a linear speed of

(3 rad/s) * (42π/2π in/rad) = 63 in/s

You might be interested in
HELP!!! URGENT!!! I WILL GIVE BRAINLEIST THING ​
lisov135 [29]

Answer:

Horizontal distance = 0 m and 6 m

Step-by-step explanation:

Height of a rider in a roller coaster has been defined by the equation,

y = \frac{1}{3}x^{2}-2x+8

Here x = rider's horizontal distance from the start of the ride

i). y=\frac{1}{3}x^{2}-2x+8

      =\frac{1}{3}(x^{2}-6x+24)

      =\frac{1}{3}[x^{2}-2(3x)+9-9+24]

      =\frac{1}{3}[(x^{2}-2(3x)+9)+15]

      =\frac{1}{3}[(x-3)^2+15]

      =\frac{1}{3}(x-3)^2+5

ii). Since, the parabolic graph for the given equation opens upwards,

    Vertex of the parabola will be the lowest point of the rider on the roller coaster.

    From the equation,

    Vertex → (3, 5)

    Therefore, minimum height of the rider will be the y-coordinate of the vertex.

    Minimum height of the rider = 5 m

iii). If h = 8 m,

    8=\frac{1}{3}(x-3)^2+5

    3=\frac{1}{3}(x-3)^2

    (x - 3)² = 9

    x = 3 ± 3

    x = 0, 6 m

    Therefore, at 8 m height of the roller coaster, horizontal distance of the rider will be x = 0 and 6 m

6 0
3 years ago
Seven minus 2 times a number is the same as the number minus 2 as an Equation
Pavel [41]
7-2x=x-2 is the answer
4 0
3 years ago
20=2(r+7)<br> I need help with this equation
DochEvi [55]
Hi there! :) The answer to your question is 3. First you do parenthesis r=3.
3+7=10, then you do 10*2=20. That is how you solve the problem.


Hope I helped! :)
( Mark as Brainliest Answer! Thank you! :)
8 0
3 years ago
Read 2 more answers
What is 64 mi/h =_____ft/s ?
victus00 [196]
31.288889,because hours have 60 min,1 min have 60 seconds so you will do 64/60=1.066666667/60=.0177777778
6 0
3 years ago
Help me out please I don’t understand?
zepelin [54]

Answer:

ya i dont either

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • A polynomial expression is shown below.
    12·1 answer
  • Which function has a range of all real numbers greater than or equal to -4​
    11·1 answer
  • Consider the set consisting of the first 10 positive whole numbers​ (that is, 1-10). Complete parts​ (a) through​ (c) below.
    14·1 answer
  • The best definition for absolute value is It changes the sign of any number. It changes the sign of any number. It is the distan
    5·1 answer
  • How to find the missing values ?! I never did this.
    11·1 answer
  • May i get help please?
    6·1 answer
  • What do you get when you cross an electric eel and a sponge puzzle time riddle
    7·1 answer
  • Write the equation of the line that contains the given point and has the given slope.
    5·1 answer
  • A summer camp rewards campers and counselors with badges. The camp orders 200 badges. The plan to give 25 badges to counselors.
    15·1 answer
  • En una caja hay el doble de monedas que en otra. Si se pasan 7 monedas de la
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!