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
Molodets [167]
3 years ago
10

HEEELPPP PLEASSEEEE HURRY

Physics
1 answer:
tino4ka555 [31]3 years ago
5 0

Answer:

Release correct vygygyvybuhibin

You might be interested in
One end of a string is fixed. An object attached to the other end moves on a horizontal plane with uniform circular motion of ra
sveticcg [70]

Answer:

If both the radius and frequency are doubled, then the tension is increased 8 times.

Explanation:

The radial acceleration (a_{r}), measured in meters per square second, experimented by the moving end of the string is determined by the following kinematic formula:

a_{r} = 4\pi^{2}\cdot f^{2}\cdot R (1)

Where:

f - Frequency, measured in hertz.

R - Radius of rotation, measured in meters.

From Second Newton's Law, the centripetal acceleration is due to the existence of tension (T), measured in newtons, through the string, then we derive the following model:

\Sigma F = T = m\cdot a_{r} (2)

Where m is the mass of the object, measured in kilograms.

By applying (1) in (2), we have the following formula:

T = 4\pi^{2}\cdot m\cdot f^{2}\cdot R (3)

From where we conclude that tension is directly proportional to the radius and the square of frequency. Then, if radius and frequency are doubled, then the ratio between tensions is:

\frac{T_{2}}{T_{1}} = \left(\frac{f_{2}}{f_{1}} \right)^{2}\cdot \left(\frac{R_{2}}{R_{1}} \right) (4)

\frac{T_{2}}{T_{1}} = 4\cdot 2

\frac{T_{2}}{T_{1}} = 8

If both the radius and frequency are doubled, then the tension is increased 8 times.

5 0
2 years ago
____ are formed where bumps from two surfaces come into contact.
NemiM [27]

the answer is Friction.

hope this heslp

6 0
3 years ago
Read 2 more answers
Almost all jobs require that you fill out an _____.
zvonat [6]

Almost all jobs require that you fill out an _____.;

D. Application

3 0
3 years ago
Read 2 more answers
Please help me this is worth allot
Liono4ka [1.6K]
The answer is “a joule”
8 0
3 years ago
A gray kangaroo can bound across a flat stretch of ground with each jump carrying it 11 m from the takeoff point. part a if the
Svetllana [295]
We have that the maximum rank of the kangaroo is given by:
 R = v0 ^ 2 sin (2θ) / g
 where,
 v0 = initial velocity
 θ = angle of the velocity vector formed from the horizontal
 g = gravity
 Clearing the speed we have:
 v0 ^ 2 = (R * g) / (sin (2θ))
 Substituting values
 v0 = root (((11) * (9.8)) / (sin (2 (21 * (pi / 180)))))
 v0 = 12.69 m / s
 answer
 its takeoff speed is 12.69 m / s
6 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following is the best name for N2O? dinitrogen monoxide nitrogen monoxide nitrogen oxide nitrogen oxygen
    7·2 answers
  • Calculate A, E, μ, cv and S for 1 mole of Kr at 298 K and 1 atm (assuming ideal behavior)
    13·1 answer
  • Rays of light incident on a lens and parallel to the principal axis of the lens coverage?
    15·2 answers
  • An aircraft has a liftoff speed of 33 m/s. What is the minimum constant acceleration an
    8·1 answer
  • What is electrical conductivity?
    10·2 answers
  • A mechanic needs to replace the motor for a merry-go-round. The merry-go-round should accelerate from rest to 1.5 rad/s in 7.0 s
    15·1 answer
  • Find the volume of cuboid of side 4cm. Convert it in SI form​
    8·1 answer
  • Please help thank you! Quarter ends tomorrow
    9·1 answer
  • Why do we teach young children through song, rhyme, and rhythm?<br> ?
    8·2 answers
  • True or false? Thanks,
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!