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
Elina [12.6K]
3 years ago
6

A model train traveling at a constant speed around a circular track has a constant velocity

Physics
1 answer:
TiliK225 [7]3 years ago
3 0
A model train traveling at a constant speed around a circular track has a constant velocity. FALSE.
Hope this helps you!

You might be interested in
Please Help!!!!
Len [333]

Answer:

v = 0.92 c

Explanation:

Here, we will use the time dilation formula from Einstein's theory of relativity to find the speed of traveling of the friend:

t =\frac{t_o}{\sqrt{1-\frac{v^2}{c^2}}} \\\\\\\sqrt{1-\frac{v^2}{c^2}}=\frac{t_o}{t}\\\\

where,

v = speed of traveling = ?

c = speed of light

t = time of return = 10 years

t₀ = time passed on earth = 4 years

Therefore,

\sqrt{1-\frac{v^2}{c^2}} = \frac{4\ years}{10\ years}\\\\  1-\frac{v^2}{c^2}=(\frac{2}{5})^2\\\\\frac{v^2}{c^2} = 1-\frac{4}{25}\\\\\frac{v^2}{c^2} = \frac{21}{25}\\\\v^2 = 0.84c^2\\\\

<u>v = 0.92 c</u>

8 0
2 years ago
The metal ions in iron are held together by
Sidana [21]
Metals are giant structures of atoms held together by metallic bonds. “Giant” implies that large but variable numbers of Atoms are involved - depending on the size of the bits of metal. most metals are close packed - that is, they fit as many items as possible into the available volume.
5 0
3 years ago
How did Galileo increase public support for Copernicus’s model?
miskamm [114]
I think by using data collected by Tycho Brahe
8 0
3 years ago
Read 2 more answers
What is night vision pls tell fast
mario62 [17]

Answer:

Night vision is when you can see in the dark or at night like owls

Explanation:

3 0
3 years ago
Read 2 more answers
Each of the following diagrams shows a spaceship somewhere along the way between Earth and the Moon (not to scale); the midpoint
djyliett [7]

Answer:

F_5 >F_4>F_1 >F_2>F_3

Where F_i represent the force for each of the 5 cases i -1,2,3,4,5 presented on the figure attached.

Explanation:

For this case the figure attached shows the illustration for the problem

We have an inverse square law with distance for the force, so then the force of gravity between Earth and the spaceship is lower when the spaceship is far away from Earth.

Th formula is given by:

F = G \frac{m_{Earth} m_{Spaceship}}{r^2}

Where G is a constant G = 6.674 x10^{-11} m^2/ (ks s^2)

m_{Earth} represent the mass for the earth

m_{spaceship} represent the mass for the spaceship

r represent the radius between the earth and the spaceship

For this reason when the distance between the Earth and the Spaceship increases the Force of gravity needs to decrease since are inversely proportional the force and the radius, and for the other case when the Earth and the spaceship are near then the radius decrease and the Force increase.

Based on this case we can create the following rank:

F_5 >F_4>F_1 >F_2>F_3

Where F_i represent the force for each of the 5 cases i -1,2,3,4,5 presented on the figure attached.

6 0
3 years ago
Other questions:
  • With some manipulation, the rydberg equation can be rewritten in the form e=constant×(1nf2−1ni2) which allows you to calculate t
    7·1 answer
  • delivery ladies is Shivam noted at the thundering sound of 6 second after the lightning was seen by him​
    10·2 answers
  • It takes 1 minute for 45 c to pass a point in a circuit, what is the current flowing through the circuit?
    5·1 answer
  • A 1040 kg car and 3360 kg truck undergo a perfectly inelastic collision. before the collision, the car was traveling southward a
    10·1 answer
  • What is the work done by the electric force to move a 1 c charge from a to b?
    8·1 answer
  • The critical angle for refraction from glass to air is 30° and that from water to air is 37°.Find the critical angle for refract
    7·1 answer
  • Please helpppp<br> Can you tell me which constellations are in the North, West, East, and, South?
    8·1 answer
  • A study showed the average basal metabolic rate of a human to be about 1500 kcal/day (6279 kJ/day). If it were possible to const
    6·1 answer
  • What is the frequency if 140 waves pass in 2 minutes?
    9·1 answer
  • I have some balls I’m a girl
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!