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
julia-pushkina [17]
3 years ago
13

The speedometer on a car actually measures the rotational speed of the axle and converts that to the linear speed of the car, as

suming the car’s tires diameter is 0.62 m. What is the rotational speed of the axle when the car is traveling 20 m/s?
Physics
2 answers:
Studentka2010 [4]3 years ago
8 0
             <span> (26 m/s)(1 rotation/0.62π m) ≈ 13.35 rotations/s that will do pig that'll do</span>
Lady_Fox [76]3 years ago
7 0

Explanation :

It is given that,

The diameter of the car's diameter, d = 0.62 m

Radius, r = 0.31 m

Speed of the car, v = 20 m/s

We know that the relation between the angular velocity and linear velocity is given by :

v=r\omega

Where \omega is angular velocity

\omega=\dfrac{v}{r}

\omega=\dfrac{20\ m/s}{0.31\ m}

\omega=64.5\ rotations/sec

Hence, this is the required solution.

You might be interested in
A conservative force does the same work regardless of the path taken.
ella [17]

A conservative force is a force that when work is done against this force the work done does not depend on the path taken only the initial and final position.

5 0
3 years ago
Read 2 more answers
The water was used to power a generator, creating _______________ energy
Nikitich [7]

Answer:

electric

<em>please give brainliest</em>

3 0
2 years ago
A rock falls from rest off a cliff and hits the ground in 2 seconds. If there is no air resistance, determine the rock's velocit
mihalych1998 [28]

Answer:

19.6m/s

Explanation:

A Rock falling off a cliff can be modeled as an object starting with  zero velocity moves with constant acceleration for certain period of time, for such motion following equation of motion can be used.

v(t) = v_{0} +at

here in our case v_{0} =0 because object starts off from rest and a = g =9.8m/s^2 is acceleration because of gravity ( Motion under gravity).

and of course t = 2 second.

Now by substituting all this information in equation of motion we get.

v(2s) = 0+9.8m/s^2 *2s = 19.6m/s

that would be the velocity of rock as it would hit the ground.

Note! We have assumed that there is no air resistance.

A rock falling off a cliff can be modeled as an object starting with zero velocity moves with constant acceleration for a certain period of time, for such motion following equation of motion can be used.

here in our case  because object starts off from rest and  is acceleration because of gravity ( Motion under gravity).

and of course t = 2 seconds.

Now by substituting all this information in equation of motion we get.

V = 19.6m/s

that would be the velocity of rock as it would hit the ground.

Note! We have assumed that there is no air resistance.

5 0
3 years ago
Explain why 15yr old need more calcium than adults
Tom [10]

Answer:

When adolescents get enough calcium during the teen years, they can start out their adult lives with the strong bones and significantly reduce their risk for fractures as an adult. Inadequate calcium intake during adolescence and young adulthood puts individuals at risk for developing osteoporosis later in life.

8 0
3 years ago
Read 2 more answers
Elementary physics in a real automobile accident
Fudgin [204]
Is this even a question
7 0
3 years ago
Other questions:
  • Which describes a high frequency wave?
    7·1 answer
  • A pulling force is called what?<br> A. normal<br> B. tension<br> C. balanced<br> D. compression
    13·2 answers
  • If the frequency of a sound wave is 990 Hz, calculate its wavelength.
    8·1 answer
  • Just about everyone at one time or another has been burned by hot water or steam. This problem compares the heat input to your s
    13·1 answer
  • A car is moving at 18 m/s when it accelerates at 8 m/s2 for 2 sec. What is his new velocity ?
    14·1 answer
  • Consider the following neutral electron configurations in which n has a constant value. Which configuration would belong to the
    9·2 answers
  • What is the function of a hypothesis in the scientific inquiry process
    7·1 answer
  • Alli was in the park playing on the equipment. she noticed that on the highest slide she slides down
    12·2 answers
  • Describe the difference between the three states of matter in terms of movement behavior at room temperature and how they intera
    12·1 answer
  • The wheels of a car have radius 12 in. and are rotating at 600 rpm. Find the speed of the car in mi/h.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!