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
Ede4ka [16]
3 years ago
14

Which of the following is a unit of rotational speed?

Physics
1 answer:
gladu [14]3 years ago
3 0
C. Rotations per second
Or normally we'd use Radians Per second  

_Brainliest if helped!!
You might be interested in
What type of specialized cell in the eye is used for detecting low levels of light?
Hunter-Best [27]

Answer:

There are about six to seven million cones in a human eye and are most concentrated towards the macula. Cones are less sensitive to light than the rod cells in the retina (which support vision at low light levels), but allow the perception of color.

8 0
3 years ago
Read 2 more answers
PLS HELP ASAP I NEED THIS BY TONIGHT
adoni [48]

Answer:

woahhh

Explanation:

7 0
3 years ago
Which pair shows the law of reflection?<br> O A and B<br> O A and C<br> O A and D<br> O A and E
Elanso [62]
A and C

Imagine u are shooting a laser pointer at a mirror this is pretty much what it is
5 0
3 years ago
The wheel of a stationary exercise bicycle at your gym makes one rotation in 0.670 s. Consider two points on this wheel: Point P
lesya [120]

Answer:

a) For P: v=0.938\frac{m}{s}

For Q: v = 1.876\frac{m}{s}

b) For P:

a_{rad}=8.80\frac{m}{s^{2}}

for Q:

a_{rad}=17.60\frac{m}{s^{2}}

c) As the distance from the axis increases then speed increases too.

Explanation:

a) Assuming constant angular acceleration we can find the angular speed of the wheel dividing the angular displacement θ between time of rotation:

\omega =\frac{\theta}{t}

One rotation is 360 degrees or 2π radians, so θ=2π

\omega =\frac{2\pi}{0.670} =9.38\frac{rad}{s}

Angular acceleration is at every point on the wheel, but speed (tangential speed) is different and depends on the position (R) respect the rotation axis, the equation that relates angular speed and speed is:

v = \omega R

for P:

v = 9.38\frac{rad}{s}*0.1m=0.938\frac{m}{s}

for Q:

v = 9.38\frac{rad}{s}*0.2m=1.876\frac{m}{s}

b) Centripetal acceleration is:

a_{rad}= \frac{v^2}{R}

for P:

a_{rad}= \frac{(0.938)^2}{0.1}=8.80\frac{m}{s^{2}}

for Q:

a_{rad}= \frac{(1.876)^2}{0.2}=17.60\frac{m}{s^{2}}

c) As seen on a) speed and distance from axis is v = \omega R because ω is constant the if R increases then v increases too.

3 0
3 years ago
A wheelbarrow is a good example of a second-class lever. True or False
olganol [36]

Answer:

true

Explanation:

a wheelbarrow has its load situated between the fulcrum and the force the wheel Barrow is 2nd class because of its resistance between the force and the axis

3 0
3 years ago
Other questions:
  • Which of the following properties could be described as a force that pushes charges along?
    8·1 answer
  • If velocity is positive, which would most likely yield a negative acceleration?
    7·1 answer
  • Define a motion diagram?
    12·1 answer
  • The carbon cycle is powered by which two processes?
    12·2 answers
  • Two boats start together and race across a 62-km-wide lake and back. Boat A goes across at 62 km/h and returns at 62 km/h. Boat
    8·1 answer
  • Through what potential difference must an electron be accelerated from rest to have a de Broglie wavelength of 500 nmnm
    10·1 answer
  • A trombone acts as if it were an
    6·1 answer
  • Suppose the tank is open to the atmosphere instead of being closed. how does the pressure vary along
    13·1 answer
  • What is the mechanical advantage of the lever shown below?
    15·1 answer
  • A stone of weight 10N falls from the top of a 250m high cliff. a) Calculate how much work is done by the force of gravity in pul
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!