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
insens350 [35]
3 years ago
13

a length 650 cm of thin thread wraps around a cylinder exactly 30 times calculate the circumference and the radius of the cylind

er (take)​
Physics
1 answer:
Eduardwww [97]3 years ago
5 0

Answer:

circumference= 65/3  cm = 21.67 cm

radius R = 3.45 cm

Explanation:

To calculate the length of the circumference of the cylinder, we divide 650 cm by 30 (the number of times it wrapped exactly around it)

length of circumference= 65/3  cm = 21.67 cm

now use the formula of the circumference length to find the radius (R):

circumference length = 2 * pi * R

65/3 = 2 * pi * R

R = 65 / (6 pi)

R = 3.45 cm

You might be interested in
Tricia puts 44 g of dry ice (solid CO2) into a 2.0-L container and seals the top. The dry ice turns to gas at room temperature (
Irina-Kira [14]

Answer:

Corect answer is D

Explanation:

Assuming that the  C O 2  gas is behaving ideally, therefore, we can use the ideal gas law to find the pressure increase in the container by:

P V=nRT ⇒  P=n R T /V

n=no of moles of the gas = mass/molar mass

Molar mass o f  C O 2=44g/mol, mass = 44g

mole n = 1mole

T=20C=293K

R=0.0821L.atm/mol.K

P=nRT/V

P = 1 x 0.0821 x 293/2

P = 12atm

6 0
3 years ago
If a wheel rotates 5 times in 90 seconds, what is the period and frequency
Sati [7]

Answer:

i think it should be 18

Explanation:

4 0
3 years ago
Problema 1. Un Clavadista se lanza desde un trampolín a diferentes alturas 10 m, 3 m, y 1 m, Calcular:
Salsk061 [2.6K]

La velocidad del buzo es de 7.04 m/s, 8.84 m/s y 2.27 m/s respectivamente.

<h3 /><h3>Velocidad </h3>

La velocidad es la relación entre la distancia total recorrida y el tiempo total empleado. Está dado por:

Velocidad = distancia/tiempo

Para 10m de altura:

  • Velocidad = 10 m/1.42 s = 7.04 m/s

Para 3m de altura:

  • Velocidad = 3 m/0.78 s = 3.84 m/s

Para 1m de altura:

  • Velocidad = 1 m/0.44 s = 2.27 m/s

La velocidad del buzo es de 7.04 m/s, 8.84 m/s y 2.27 m/s respectivamente.

Obtenga más información sobre la velocidad en: brainly.com/question/4931057

4 0
2 years ago
Imagine that a hypothetical life form is discovered on our moon and transported to Earth. On a hot day, this life form begins to
almond37 [142]

Answer:

The heat of vaporization 580 cal/g times 602g = cal in human  and do the same for life form.

Explanation:

4 0
3 years ago
Two identical masses are connected to two different flywheels that are initially stationary. Flywheel A is larger and has more m
inysia [295]

Answer:

a) True. There is dependence on the radius and moment of inertia, no data is given to calculate the moment of inertia

c) True. Information is missing to perform the calculation

Explanation:

Let's consider solving this exercise before seeing the final statements.

We use Newton's second law Rotational

      τ = I α

     T r = I α

     T gR = I α

     Alf = T R / I (1)

     T = α I / R

Now let's use Newton's second law in the mass that descends

     W- T = m a

     a = (m g -T) / m

The two accelerations need related

     a = R α

    α = a / R

    a = (m g - α I / R) / m

    R α = g - α I /m R

    α (R + I / mR) = g

    α = g / R (1 + I / mR²)

We can see that the angular acceleration depends on the radius and the moments of inertia of the steering wheels, the mass is constant

Let's review the claims

a) True. There is dependence on the radius and moment of inertia, no data is given to calculate the moment of inertia

b) False. Missing data for calculation

c) True. Information is missing to perform the calculation

d) False. There is a dependency if the radius and moment of inertia increases angular acceleration decreases

4 0
3 years ago
Other questions:
  • Which region is located between 23.5° north and 23.5° south of the equator?
    15·1 answer
  • 61 pts!!!!!!!!!!!!!!!!!!!
    10·2 answers
  • How is the direction of current defined by convention
    7·1 answer
  • Along boundaries plates are brittle and the crust fractures (breaks and cracks) forming ___
    5·1 answer
  • What happens to Earth’s temperature as cloud cover increases?
    9·2 answers
  • Someone help pleaseee! serious answers only. how many miles are in 15,000 feet? 1 mile= 5,280 feet
    6·2 answers
  • An impulse always produces a change in <br> A. momentum<br> B. speed <br> C. direction<br> D. force
    15·2 answers
  • Could I get help on this question please
    6·1 answer
  • A high school physics teacher also happens to be the junior hockey team coach. During a break at practice, the coach asks two pl
    11·1 answer
  • assuming birdman flies at a speed of 22 m/s how high should birdman fly to hit the bucket if the bucket is placed 92 m from the
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!