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
Minchanka [31]
3 years ago
5

An object moves in uniform circular motion at 25 m/s and takes 1.0 second to go a quarter circle. What is the radius of the circ

le?
R = _____ m
Physics
2 answers:
choli [55]3 years ago
8 0
C=2\pir

100=2\pir

 2\pi you get 6.28
then you divide 100 and 6.28 and get 15.92.
you can round it and get 16. 
FromTheMoon [43]3 years ago
4 0
Object Motion: 25 m/s

Circumference of Circle: 
1/4 Circumference of Circle in 1 second = 25 meters
25 meters times 4 = Circumference of Circle 
Circumference = 100 meters

Formula to Find Circumference of Circle: (work opposite)
C = 2<span>πr

100 = </span>2πr          divided
100/2π = r         simplify
50/π = r         (exact radius)

Answer:
50/π meters = r         (exact radius)

You might be interested in
If you throw a baseball while riding a bike, the ball's speed relative to the ground is the sum of the bicycle's speed and the s
Ostrovityanka [42]
Take for example driving by with a cake in your hand, then dropping it while going 30 mph. It will not drop directly down, it will gradually go in the direction you were driving while falling.
This is true I believe, if I'm interpreting correctly.
5 0
3 years ago
The doppler effect is used to determine?
Korolek [52]
Uhh it is used to detirmine heat

7 0
3 years ago
Read 2 more answers
The three forces acting on a hot-air balloon that is moving vertically are its weight, the force due to air resistance and the u
irinina [24]

Explanation :

The forces acting on hot- air balloon are:

Weight, (W)

Force due to air resistance, (F)

Upthrust force, (U)

Its weight W is acting in downward direction. The upthrust force U acts in upward direction. When the balloon is moving upward, the air resistance is in downward and vice versa.

In this case, the hot-air balloon descends vertically at constant speed.

so, a=0

and F=ma=0

so, W = F + U ....................(1)

when it is ascending let the weight that it is releasing is R, so

(W-R) + F = U..........(2)

solving equation (1) and (2)

(W-R)+F=W-F

R=2F            

2F is the weight of material that must be released from the balloon so that it ascends vertically at the same constant speed.

7 0
3 years ago
Read 2 more answers
An observer notes that the pitch of a sound is becoming progressively higher.the observer can conclude that the sound is moving
Dahasolnce [82]
The observer can conclude that the sound is moving away from them and that its speed is increasing.
6 0
3 years ago
Why is the crank on a meat grinder larger than the crank on a pencil
MArishka [77]
It takes more work to use a meat grinder
4 0
3 years ago
Read 2 more answers
Other questions:
  • I really don’t know what it is to me they r all the same
    11·2 answers
  • HELP ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    7·1 answer
  • A slug traveling at 3 mm/h, East decided to race the slug next to him increasing his velocity to 5 mm/h, East in one hour. What
    7·1 answer
  • 4) A cannon shoots a cannonball of mass 5kg vertically upward from the mouth of a cannon with muzzle velocity of 7 m/s. At a hei
    14·1 answer
  • Derek designed an experiment to demonstrate interactions between Earth systems. He cleared a patch of land in his backyard and p
    10·1 answer
  • A car accelerates in the +x direction from rest with a constant acceleration of a1 = 1.76 m/s2 for t1 = 20 s. At that point the
    13·1 answer
  • While driving down the road, an unfortunate bug strikes the windshield of a bus
    10·1 answer
  • Is 72.3 L of an ideal gas is cooled from 36 Celsius to -156 Celsius what is the volume of the gas become
    9·1 answer
  • How do we get heat on Earth? Does thermal energy travel directly from the sun?
    13·1 answer
  • Elena earns $10.50 per hour as a server working x hours per week. She also earns $8.50 per hour editing poetry for y hours per w
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!