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
Ray Of Light [21]
3 years ago
10

Define rotational speed?- short answer

Physics
1 answer:
Marina86 [1]3 years ago
3 0
Rotational speed of an object around an axis is the numbers of turns of the object divided by time.  <span />
You might be interested in
A marble is placed at Location W. When the marble is released, it rolls down the track.
Norma-Jean [14]

Answer:

Z

Explanation:

6 0
2 years ago
Read 2 more answers
Me podrían dar la respuesta y el proceso?
Nat2105 [25]

Answer:

I don’t understand Espanol

Explanation:

sorry

7 0
2 years ago
What is the half life-life of your 100 atoms of Carbon-14?
Naddika [18.5K]

Answer:

Answer: It takes 5,730 years for half the carbon-14 to change to nitrogen; this is the half-life of carbon-14. After another 5,730 years only one-quarter of the original carbon-14 will remain

3 0
2 years ago
Two titanium spheres approach each other head-on with the same speed and collide elastically. After the collision, one of the sp
Thepotemich [5.8K]
I know i did part a correctly. heres what i did: momentum is conserved: m1 * u - m2 * u = m2 * v or (m1 - m2) * u = m2 * v Also, for an elastic head-on collision, we know that the relative velocity of approach = relative velocity of separation (from conservation of energy), or, for this problem, 2u = v Then (m1 - m2) * u = m2 * 2u m1 - m2 = 2 * m2 m1 = 3 * m2 m1 is the sphere that remained at rest (hence its absence from the RHS), so m2 = 0.3kg / 3 m2 = 0.1 kg b) this part confuses me, heres what i did (m1 - m2) * u = m2 * v (.3kg - .1kg)(2.0m/s) = .1kg * v .4 kg = .1 v v = 4 m/s What my teacher did: (.3g - .1g) * 2.0m/s = (.3g + .1g) * v I understand the left hand side but i dont get the right hand side. Why is m1 added to m2 when m1 is at rest which makes its v = zero?? v = +1.00m/s since the answer is positive, what does that mean? Also, if v was -1.00m/s what would that mean? thanks!

<span>Reference https://www.physicsforums.com/threads/elastic-collision-with-conservation-of-momentum-problem.651261...</span>
3 0
3 years ago
A rotating water pump works by taking water in at one side of a rotating wheel, and expelling it from the other side. If a pump
Xelga [282]

Answer:

Explanation:

initial angular velocity, ωo = 0 rad/s

angular acceleration, α = 30.5 rad/s²

time, t = 9 s

radius, r = 0.120 m

let the velocity is v after time 9 s.

Use first equation of motion for rotational motion

ω = ωo + αt

ω = 0 + 30.5 x 9

ω = 274.5 rad/s

v = rω

v = 0.120 x 274.5

v = 32.94 m/s

8 0
2 years ago
Other questions:
  • A mass M of 3.80E-1 kg slides inside a hoop of radius R=1.10 m with negligible friction. When M is at the top, it has a speed of
    15·1 answer
  • What is Law of gravitation?
    10·2 answers
  • Two planes leave wichita at noon. one plane flies east 30 mi/h faster than the other plane, which is flying west. at what time w
    14·1 answer
  • You are playing catch with a friend in a moving train. When you toss the ball in the direction the train is moving, how does the
    5·1 answer
  • If our solar system's Sun was half the mass as it is now, what would happen to the orbit of the Earth
    5·1 answer
  • The energy associated with the random motion of molecules or atoms within a substance is
    8·1 answer
  • A molecule is the smallest unit of a substance that retains the
    9·2 answers
  • A high speed train is traveling at a speed of 44.7 m/s (100 mph) when the engineer sounds the 415 Hz warning horn. The speed of
    8·1 answer
  • Which process enables the boy to see over the wall?
    9·1 answer
  • what happens to the strength of an electromagnet when the number of coils in the solenoid is decreased?
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!