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
Dmitry [639]
3 years ago
5

A race car is driven around a circular track at a constant speed of 180mph. If the diameter is 1/2 mile, what is the angular spe

ed of the car? Express your answer in revolutions per hour. The formula for angular speed is w=theta (in radians)/time
Mathematics
1 answer:
Bogdan [553]3 years ago
4 0
If the diameter is 1/2 mile, that is 0.5 mile, then the radius is 0.25 -half of it!

the angular speed is theta/time, which means

 w=theta/time

but another formula for it is Velocity*radians

w=velocity*radians

velocity is 180 mph and radians are (revolution/2\pi radius), that is:

w=180*(1/2\pi*0.25)
and if we calculate this, we have: w=114.59, which is the correct answer!
You might be interested in
A machine for baking hay produces cylindrical bales that are 6 feet in diameter and 5 1/3 feet in height. Which is closest to th
GaryK [48]
We know that
diameter=6 ft----------> r=6/2------> r=3 ft
h=5 1/3 ft------> (5*3+1)/3-----> 16/3 ft
[volume of a cylindrical bales]=pi*r²*h----> pi*3²*16/3---> 150.72 cm³

the answer is the option
<span>B 151 cm</span>³
5 0
2 years ago
What is the surface area of the triangular prism?
Minchanka [31]

Answer: = 40 . 24

Step-by-step explanation:

A triangular prism. The rectangular sides are 24 feet by 40 feet, 40 feet by 15 feet, and 40 feet by 15 feet. The triangular sides have a base of 24 feet and height of 9 feet.

2,001 square feet

2,376 square feet

2,592 square feet

4,320 square feet

4 0
2 years ago
Read 2 more answers
2) Which expression is equivalent to:<br> y•y3•y2
Nastasia [14]

Answer:

y^6

Step-by-step explanation:

When multiplying terms with exponents that have the same base, the rule is to add the exponents. y * y^3 * y^2 = y^(1 + 3 + 2). (remember that y has a hidden exponent of 1, we just don't write that because it is redundant and unnecessary). y^(1 + 3 + 2) = y^6

hope this helps! <3

3 0
1 year ago
Choose the correct simplification of the expression (b^5)4
tangare [24]

Answer:

b^20

Step-by-step explanation:

when the exponents have one inside and the other outside, they are multiplied.  

8 0
2 years ago
What does 12g+8k=?????
Y_Kistochka [10]
Hi there! Here is the soloution to your question:
12g+8k= 8012 Grams

I Hope that helps!
8 0
3 years ago
Read 2 more answers
Other questions:
  • Can you help me with this please can you show work please
    14·1 answer
  • For 3/4 a pound jimmy paid 2.35 what is the unit rate
    15·1 answer
  • what best describes the number 5 right prime composite neither prime nor composite or both prime in composite
    13·2 answers
  • mark creates a flower bed that is semicircular in shape as shown on the image. the diameter of the flower is 5 meter
    15·1 answer
  • Set up a rational equation and then solve the following problems. A positive integer is twice another. The difference of the rec
    15·1 answer
  • If, for each mouse, the probability of turning left is 0.5 and the probability of turning right is 0.5, what is the probability
    11·1 answer
  • At a local department store, pants have been reduced to $12. This price is at 75% of the original price for pants. Given this, w
    13·1 answer
  • 1/4 divided by 1 3/8
    9·1 answer
  • What is the estimate 20 9/11 divided by 6 19/20?<br> A) 147<br> B) 120<br> C) 4<br> D) 3
    15·1 answer
  • Select all the values below that you can find or calculate when given only a dot plot
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!