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
agasfer [191]
4 years ago
7

A wheel of radius 0.4 m rotates with a constant angular velocity of 50 rad/s. What are the magnitudes of the tangential velocity

Physics
1 answer:
Kryger [21]4 years ago
4 0

Answer:

Therefore the magnitude of tangential velocity is 20 m/s.

Explanation:

Tangential velocity:The tangential velocity is the straight line velocity of at any point of rotating object.

It is denoted by v_t

v_t= \omega r

ω= angular velocity

r = radius of rotating object.

Angular velocity: Angular velocity is ratio of angle to time.

Here ω= 50 rad/s and r = 0.4 m

Tangential velocity=(50 ×0.4)m/s

                                =20 m/s

Therefore the magnitude of tangential velocity is 20 m/s.

You might be interested in
Label and describe what is happening in this picture
SOVA2 [1]
Something is reproducing.
7 0
3 years ago
you add equal amounts of heat to two identical cylinders containing equal amounts of the same ideal gas. cylinder a is allowed t
OleMash [197]

Temperature rise will be there in cylinder B more than in cylinder A because of internal energy.

what is internal energy?

The sum of the kinetic and chemical potential energies of all the particles in the system is the internal energy. Particles accelerate and pick up kinetic energy when energy is applied to increase the temperature.

Briefing:

Cylinder A uses the heat it absorbs to both work while expanding and to increase internal energy (or temperature).

While cylinder B solely uses the heat it absorbs to increase its internal energy 

As a result, cylinder B's temperature rise is greater than cylinder A's.

To know more about internal energy visit:

brainly.com/question/11278589

#SPJ4

3 0
1 year ago
Suppose astronomers find an earthlike planet that is twice the size of Earth (that is, its radius is twice the radius of Earth).
JulijaS [17]

Answer:

4 times the mass of Earth

Explanation:

M_1 = Mass of Earth

M_2 = Mass of the other planet

r = Radius of Earth

2r = Radius of the other planet

m = Mass of object

The force of gravity on an object on Earth is

F=\frac{GM_1m}{r^2}

The force of gravity on an object on the other planet is

F=\frac{GM_2m}{(2r)^2}

As the forces are equal

\frac{GM_1m}{r^2}=\frac{GM_2m}{(2r)^2}\\\Rightarrow M_1=\frac{M_2}{4}\\\Rightarrow M_2=4M_1

So, the other planet would have 4 times the mass of Earth

6 0
4 years ago
you are about to work some magic with matter. you have a rectangular cube of matter in its solid state. it measures 3 in x 4 in
Elenna [48]

In solid and liquid the matter can occupy the 90 in³ and 157.1 in³ volume.

The matter in gaseous state can be expanded to occupy the volumes of the container.

<h3>Volume of each of the container</h3>

The volume of each of the container is calculated as follows;

<h3>Volume of the rectangular container</h3>

V = 5 in x 6 in x 3 in

V = 90 in³

<h3>Volume of the cylindrical container</h3>

V = πr²h

V = (π)(2.5 in)²(8 in)

V = 157.1 in³

<h3>Volume of the matter</h3>

Vm = 3 in x 4 in x 5 in

Vm = 60 in³

<h3>Matter in solid and liquid state</h3>

Matter has fixed volume in solid and liquid state.

In solid and liquid the matter can occupy the 90 in³ and 157.1 in³ volume.

<h3>Matter in gaseous state</h3>

Matter has no definite volume in gaseous state.

The matter in gaseous state can be expanded to occupy the volumes of the container.

Learn more about states of matter here:

#SPJ1

6 0
1 year ago
Arunning back practices for his upcoming football game by running drills. He runs forward 62.4 yards, and runs backward for
Mama L [17]

Answer: He has only move 0.2 yards

Explanation: When you subtract 18.3 from 18.5 you get 0.2 and that is how much he's moved

4 0
3 years ago
Other questions:
  • On your wedding day, you leave for the church 25 minutes before the ceremony is to begin. The church is 8 miles away. On the way
    8·1 answer
  • What is the relationship between force and motion described by Newton's first law
    14·1 answer
  • Which scale of measurement measures the magnitude or strength of an earthquake based on seismic waves?
    8·2 answers
  • In which changes of state do atoms lose energy
    8·1 answer
  • Devon places sliced potatoes in a package of aluminum foil. He puts a metal grate over a campfire and sets the package on the gr
    11·2 answers
  • A sphere is charged with electrons to -6 x 10^-6C. How many electrons make up this charge? The elemental charge is 1.6 x 10^-19
    15·1 answer
  • How do you find the speed of an object given its mass and kinetic energy (what is the formula)?
    5·1 answer
  • A skier leaves the end of a horizontal ski jump at 23.0 m/s and falls through a vertical distance of 3.45 m before landing.
    6·1 answer
  • Define the word logrolling in your own words?
    11·2 answers
  • What is the Force in Newtons exerted by cart with a mass of 0.75 kg and an Acceleration of 6m/s2?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!