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
Darina [25.2K]
3 years ago
5

Although we talk about the velocity of an object in Uniform Circular Motion as being

Physics
2 answers:
DaniilM [7]3 years ago
8 0

Answer:

The speed is constant.

Speed is a scalar quantity (magnitude only).

Velocity is a vector quantity (magnitude and direction).

For an object in Uniform Circular Motion the change in velocity is always

directed towards the center of the circle, and this change of velocity

gives rise to the acceleration which is directed towards the center of

rotation. This is called the centripetal acceleration, and it is the centripetal

force (for instance the attraction of the moon towards the earth) which

produces the centripetal acceleration.

rodikova [14]3 years ago
3 0

Answer:

The speed is constant.

Explanation:

In reality in circular motion the velocity is never constant because the object keeps changing direction in a continuous fashion. Remember velocity is measured by magnitude and direction. However we use the term constant velocity to mark constant speed for convenience.

You might be interested in
9. If everything in the universe – including atoms and particles stop moving, does time stop? Or does time continue even if ever
Vedmedyk [2.9K]
Time stops everything is made out of atoms so if atoms freeze everything freezes
5 0
3 years ago
What is potential energy?
iVinArrow [24]
energy associate with position or shape
5 0
3 years ago
The sound level measured in a room by a person watching a movie on a home theater system varies from 40 dB during a quiet part t
UNO [17]

Answer:

\alpha=-3.01dB

Explanation:

From the question we are told that:

Sound level intensity

 \triangle I=40dB-80dB

Generally the equation for  intensity level  is mathematically given by

 \alpha=10log_{10}(I/I_x)dB

Where

 I= Intensity measured

 I_x=Threshold\ of\ audibility

 I_x= 10-12 W / m2

 \alpha= 10 log10 \frac{I_1}{I_x} - 10 log10 \frac{}I_2{I_x}

 \alpha= 10 log10 \frac{I_1}{I_2}

 \alpha=10 log10\frac{40}{80}

 \alpha=-3.01dB

7 0
3 years ago
A charged particle moves through a magnetic field. In which situation is the magnetic force zero?
maksim [4K]

Answer:

The answer is the option a.

Explanation:

We know that magnetic force (Fm) is defined as

Fm = q (v x B)

Where q is a the value of the charge, v is the velocity of the charge and B is the value of the magnetic field.

"v x B" is defined as the cross product between the vectors velocity and magnetic field, and if the angle between them is thetha < 180°, then, the cross product is

v x B = vBsin (thetha)

So,

Fm = qvBsin (thetha)

And, in case in which v and B are parallel vectors, thetha is zero, and,

sin (thetha)=sin (0) = 0

So, Fm=0

7 0
3 years ago
As scientists research, they often find information that does not fit with current theories. What happens when new, contradictor
timofeeve [1]
The correct answer is "C". 'Old theories are adjusted to incorporate all old new information.' This makes the most sense, regarded the old and new information should be taken into consideration.

I hope this helped you!

Brainliest answer is always appreciated!
8 0
3 years ago
Read 2 more answers
Other questions:
  • (II) The pressure in an ideal gas is cut in half slowly, while
    12·1 answer
  • A 30 kg child rides a 20 kg bicycle. Together, the child and the bicycle have a momentum of 110 kg-m/s. What is the velocity of
    7·1 answer
  • What is the wavelength of an earthquake wave if it has a speed of 7 km/s and a frequency of 3 Hz?
    11·1 answer
  • Hurricanes are formed due to
    14·2 answers
  • A 1445-kg car,c, moving east at 21.2m/s, collides with a 2625-kg car,d,moving south at 17.5 m/s, and the cars stick together. In
    5·1 answer
  • A 60.watt light bulb runs for 5.0 seconds. How much energy does it use?
    10·1 answer
  • Compared to a virtual image, a real image
    7·1 answer
  • A 560-g squirrel with a surface area of 930cm2 falls from a 5.0-m tree to the ground. Estimate its terminal velocity. (Use a dra
    8·1 answer
  • 4. A thermos bottle has two layers, a glass layer and a vacuum layer.
    9·1 answer
  • Hey I need help can someone help me out, please
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!