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
Andrew [12]
2 years ago
9

A marching band consists of rows of musicians walking in straight, even lines. When a marching band performs in an event, such a

s a parade, and must round a curve in the road, the musician on the outside of the curve must walk around the curve in the same amount of time as the musician on the inside of the curve. This motion can be approximated by a disk rotating at a constant rate about an axis perpendicular to its plane. In this case, the axis of rotation is at the inside of the curve.
Knowing that If Beth travels a distance s during time Δt, how far does Alf travel during the same amount of time= (1/4)s. If Alf moves with speed v, what is Beth's speed? Speed in this case means the magnitude of the linear velocity, not the magnitude of the angular velocity.

a. 4v
b. v
c. v/4
Physics
1 answer:
Svetllana [295]2 years ago
7 0

Answer:

a. 4v

Explanation:

Alf moves with speed v

Alf travel during the same amount of time that is Δt = (1/4)s

v = (1/4)s /  Δt = s / 4 Δt

s / Δt  = 4 v

Beth travels a distance s during time Δt,

speed of Beth = s / Δt = 4 v .

You might be interested in
What is the mass of an object on the moon whose weight sitting on the Earth is 1900 N?
arlik [135]
Fg=mg
Fg/g=m
m=(1900N) / (9.81N/kg)
m=193.68kg
3 0
3 years ago
Which of the following is an example of mechanical weathering
ANEK [815]
Buddy i mean  gravity can be one example to the mechanical weathering 


6 0
3 years ago
If you had been traveling that fast and the light actually was yellow, what color would it have seemed to you?
dimulka [17.4K]

Answer:

c. red

Explanation:

4 0
3 years ago
Giving 25 points need help ASAP!
Bumek [7]

Answer:

i dont exactly know the answer but i do know the formula

Explanation:

1/ 1/R1 + 1/ R2+

4 0
3 years ago
Which of these statements are true?
Juliette [100K]
D.Neither High- nor low-pressure systems lead to rain
8 0
3 years ago
Read 2 more answers
Other questions:
  • The force of gravity decreases if two objects have
    5·2 answers
  • Two cars, one in front of the other, are traveling down the highway at 53.7 m/s. The car behind sounds its horn, which has a fre
    15·1 answer
  • A car moving eastward along a straight road increases its speed uniformly from 16 m/s to 32 m/s in 10.0 s.
    13·1 answer
  • Which of the following chemical equations is unbalanced?
    14·1 answer
  • A taxi hurries 156km in 1 1/2 hours. what is it's average speed in kilometers per hour​
    9·1 answer
  • HELPPP MEEEEEE PLEASEEEE
    10·1 answer
  • Write down Interpretive questions about action reaction forces.
    5·1 answer
  • Who was the first scientist to explore the moon with a telescope? A Isaac Newton B Johannes Kepler C Nicolaus Copernicus D Galil
    8·1 answer
  • As the change in speed at the boundary of two materials is greater what happened to the angle of refraction (please help )
    5·1 answer
  • Thinking about planck's law, which star would give off the most orange light?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!