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
denpristay [2]
2 years ago
10

The drawing shows a golf ball passing through a windmill at a miniature golf course. The windmill has 12 blades and rotates at a

n angular speed of 1.35 rad/s. The opening between successive blades is equal to the width of a blade. A golf ball (diameter 4.50 10-2 m) has just reached the edge of one of the rotating blades (see the drawing). Ignoring the thickness of the blades, find the minimum linear speed with which the ball moves along the ground, such that the ball will not be hit by the next blade
Physics
1 answer:
tester [92]2 years ago
7 0

Answer:

v<em>min</em> = 0.23 m/s

Explanation:

The golf ball must travel a distance equal to its diameter in the time between blade arrivals to avoid being hit. If there are 12 blades and 12 blade openings and they have the same width, then each blade or opening is 1/24 of a circle of is 2π/24 = 0.26 radians across.

Therefore, the time between the edge of one blade moving out of the way and the next blade moving in the way is

time = angular distance/angular velocity

⇒ t = 0.26 rad / 1.35 rad/s = 0.194 s

The golf ball must get completely through the blade path in this time, so must move a distance  equal to its diameter in 0.194 s, therefore the speed of the golf ball is

v =d/t

⇒ v = 0.045 m / 0.194 s = 0.23 m/s

You might be interested in
Two 8.0 Ω lightbulbs are connected in a 12 V parallel circuit. What is the power of both glowing bulbs?
kati45 [8]

Answer:

96w

Explanation:

p=Iv..where v=12 and I=8.0

8 0
2 years ago
Can y'all please help me out with this ?
Inessa05 [86]

Answer:

no where is the main part of the question dude

3 0
2 years ago
Light hits a mirror at a 45° angle. It will be reflected at an angle _____.
Eddi Din [679]
It will be equal to 45°
6 0
2 years ago
_________ light is unique in that it vibrates mostly in one direction.
Misha Larkins [42]

Polarized light light is unique in that it vibrates mostly in one direction.

Polarized mild waves are light waves in which the vibrations occur in a single plane. The process of reworking unpolarized light into polarized light is called polarization. There are a ramification of methods of polarizing mild.

Polarization is used for differentiating among transverse and longitudinal waves. Infrared spectroscopy makes use of polarization. it is used in seismology to take a look at earthquakes. In Chemistry, the chirality of organic compounds is tested the use of polarization strategies.

Refraction is the change in route of waves that takes place when waves tour from one medium to every other. . Light has a dual nature. as it has waves, sunlight passing via  rainstorm makes a rainbow. however, while mild moves a sun mobile, it can provide strength as a series of very small bursts. particles of count number have names together with the proton, electron and neutron.

Learn more about lights here:-brainly.com/question/19697218

#SPJ4

6 0
1 year ago
What is the energy of an electromagnetic wave that has a frequency of 5.0 x 10⁵ Hz?
Valentin [98]

Answer: 3.3 x 10^-28 J

Explanation: just answered on a quiz!! :)

5 0
3 years ago
Other questions:
  • On the Moon, the acceleration due to the effect of gravity is only about 1/6 of that on Earth. An astronaut whose weight on Eart
    15·1 answer
  • A rock falls off a cliff, its final velocity was 85m/s, how long did it fall before hitting the ground?
    8·1 answer
  • I really need help please just answer at least one
    13·1 answer
  • Does the mass of a pendulum affects the period of oscillation
    7·1 answer
  • A car initially traveling at 15 m/s speeds up at a constant rate of 2.0 m/s2 for 3 seconds. The velocity of the car at the end o
    5·1 answer
  • Using no more than 3 sentences, explain how a motor and generator are related.
    14·1 answer
  • Which of these statements explains why we have day and night? [1] The Earth orbits the Sun once a day The Sun orbits the Earth o
    5·1 answer
  • An airplane flies 1000 miles in 2 hours. What is its average speed in miles per hour?
    11·1 answer
  • 3. A ball thrown vertically upward returns to its starting point in 4s. Find its initial speed. [4]
    7·1 answer
  • 1. You serve a volleyball with a mass of 2.1kg. The ball leaves your
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!