answer.
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
kkurt [141]
2 years ago
6

A flywheel with a very low friction bearing takes 1.6 h to stop after the motor power is turned off. The flywheel was originally

rotating at 55 rpm. What was the initial rotation rate in radians per second?
Physics
1 answer:
nadezda [96]2 years ago
3 0

Answer: 5.76 rads/s

Explanation:

The initial rotation is 55 rpm

1 rev = 2π radians

55 revs = 55 × 2π/1 = 345.58 radians/min

345.58 rads/min = 345.58rads/60s = 5.76 rads/s

You might be interested in
Which of the following quantities provide enough information to calculate the tension in a string of mass per unit length μ that
Bad White [126]

Answer:

A. the wave speed v and Wavelength

Explanation:

Given that

Mass density per unit length=μ

Frequency = f

The velocity V given as

\mu=\dfrac{T}{V^2}\ kg/m

V=\sqrt{\dfrac{T}{\mu}}

T=Tension

V=Velocity

V= f λ

λ=Wavelength

Therefore to find the tension ,only wavelength and speed is required.

The answer is A.

8 0
2 years ago
What is the speed of each neutron as they crash together? keep in mind that both neutrons are moving?
Sophie [7]
This involves shooting electrons (from an accelerator) at a target or protons. This technique provided evidence for the existence of quarks. <span>proton-antiproton scattering as well.
</span>hope this helps
7 0
1 year ago
Read 2 more answers
A dog is 60m away while moving at constant velocity of 10m/s towards you. Where is the dog after 4 seconds?
evablogger [386]
20m away

the dog was 60m away from. you subtract 40m since it is 10m/s x 4 seconds
4 0
1 year ago
Read 2 more answers
A spring-powered dart gun is unstretched and has a spring constant 16.0 N/m. The spring is compressed by 8.0 cm and a 5.0 gram p
stepladder [879]

Answer:

Explanation:

Given that,

Spring constant = 16N/m

Extension of spring

x = 8cm = 0.08m

Mass

m = 5g =5/1000 = 0.005 kg

The ball will leave with a speed that makes its kinetic energy equal to the potential energy of the compressed spring.

So, Using conservation of energy

Energy in spring is converted to kinectic energy

So, Ux = K.E

Ux = ½ kx²

Then,

Ux = ½ × 16 × 0.08m²

Ux = 0.64 J

Since, K.E = Ux

K.E = 0.64 J

4 0
1 year ago
Rachel is helping her younger brother replace a broken part in his toy ambulance. This part is responsible for converting electr
Studentka2010 [4]
The light bulb, it takes electrical energy and turns it into l<span>ight energy!</span>
5 0
2 years ago
Read 2 more answers
Other questions:
  • A positive charge moving up enters a magnetic field pointing out of the screen. What is the direction of the magnetic force on t
    13·2 answers
  • A power drill runs at a voltage of 120 V and draws a current of 4 A. What is the wattage of the drill?
    11·1 answer
  • Calculate the longest wavelength visible to the human eye. express the wavelength in nanometers to three significant figures.
    15·1 answer
  • A cat accelerates from rest to 10m/s when it sees a dog. This takes 2 seconds. What was the acceleration of the cat
    11·2 answers
  • A 25 pF parallel-plate capacitor with an air gap between the plates is connected to a 100 V battery. A Teflon slab is then inser
    7·1 answer
  • The gamma photons created during a PET scan are detected when they encounter a scintillator and produce a burst of light. This l
    11·1 answer
  • A sinusoidally-varying voltage V(t)=V0sin(2pift) with amplitude V0 = 10 V and frequency f = 100 Hz is impressed across the plate
    7·1 answer
  • A meter stick balances at the 50.0-cm mark. If a mass of 50.0 g is placed at the 90.0-cm mark, the stick balances at the 61.3-cm
    13·2 answers
  • Place a small object on the number line below at the position marked zero. Draw a circle around the object. Mark the center of t
    5·1 answer
  • A projectile was launched horizontally with a velocity of 468 m/s, 1.86 m above the ground. Calculate how long it would take for
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!