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
Rama09 [41]
3 years ago
15

A 0.025m radius toy top is spinning at a rate of 150rpm, what is the angular velocity? What is the linear velocity of the paint

on the outside edge?
Physics
1 answer:
Sonja [21]3 years ago
8 0
A) The angular velocity of the disk is 150 rpm (revolutions per minute). We can convert it into proper units, i.e. radiants per seconds, keeping in mind that:
1 rev = 2 \pi rad
1 min = 60 s
so the angular speed is
\omega = 150  \frac{rev}{min}  = 150  \frac{2 \pi rad}{60 s} =15.7 rad /s

b) The linear velocity is given by
v=\omega r
since the radius is r=0.025 m, the linear velocity at the edge of the disk is
v= \omega r = (15.7 rad/s)(0.025 m)=0.39 m/s
You might be interested in
If 100ml of cold water is added to 100ml of hot water what happens
denis23 [38]
The water will be cool and steam will be created by the hot and cold water reacting together
4 0
3 years ago
A blue line with 5 orange tick marks then one red tick mark then 4 orange tick marks. The number zero is above the red tick mark
Digiron [165]

Answer:

16 cm

Explanation:

Given that,

The object begins from 0 and moves 3cm towards left side followed by 7 cm towards the right and then, 6 cm towards the left side.

Let the x-axis to be the +ve and on the right side and -ve on the left

Thus, displacement would be:

= 0 -3 + 7 -6

= -2 cm

This implies that the object displaces 2cm towards the left.

While the total distance covered by the object equal to,

= 0cm + 3cm + 7cm + 6cm

= 16 cm

Thus, <u>16 cm</u> is the total distance.

3 0
3 years ago
a car headed north at 15 m/s accelerates for 4.25 s to reach a velocity of 28.3 m/s. What is the acceleration of the car?
Liono4ka [1.6K]

<u>Answer:</u>

The acceleration of the car is 3.13 m/s^2

<u>Explanation:</u>

In the question it is given that car initially heads north with a velocity 15 m/s. It then accelerates for 4.25 s and in the end its velocity is 28.3 m/s.

initial velocity u = 15 m/s

time t=4.25 s

final velocity v=28.3 m/s

The equation of acceleration is

a= \frac{(v-u)}{t}

= \frac{(28.3-15)}{4.25} =  \frac {13.3}{4.25} =3.13m/s^2

The value of acceleration is positive, here since the car is speeding up. If it was slowing down the value of acceleration would be negative.

7 0
3 years ago
If a star is 13.7 light years away from earth, how can we tell which elements it is made of?
ICE Princess25 [194]
Light year is a unit of measure of time that makes use of the speed of light and distance between objects to determine the number of years it will take for the light to travel. We can determine what element the object is made up of by the wavelength of the color. 
8 0
3 years ago
Which is the fundamental law of energy?
Mkey [24]
Energy cannot be created nor be destroyed
6 0
4 years ago
Read 2 more answers
Other questions:
  • Which best describes what is made of matter?
    9·2 answers
  • Alicia está a punto de perder su bus. En un desesperado intento, corre a una velocidad constante de 5 m/s. Cuando está a 15 m de
    5·1 answer
  • ALWAYS use significant figure rules. Remember that these rules apply to all numbers that are measurements.
    6·2 answers
  • What universal force is primarily responsible for keeping satellites in orbit around Earth?
    13·2 answers
  • If you measure the amount of work accomplished in a particular time interval, u have measured-
    11·1 answer
  • Ball 1 is thrown to the ground with an initial downward speed; ball 2 is dropped to the ground from rest.
    9·1 answer
  • When an atom that has no charge looses two electrons it becomes a
    5·2 answers
  • anyone know where I can find stuff (answer key, tables, etc.) for my Newton's Law of Motion lab report on edge2020? need answers
    12·1 answer
  • An elevator filled with passengers has a mass of 1603 kg. (a) The elevator accelerates upward from rest at a rate of 1.20 m/s2 f
    10·1 answer
  • BMI is the most accurate way to decide if you are overweight or not<br><br> True or false
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!