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
valina [46]
3 years ago
6

Sharon the ant (Aaron’s sister) sits at the edge of a turntable of radius R that is spinning with period T. As she makes one-hal

f of a full rotation on the turntable, what is the magnitude of the average acceleration experienced by Sharon the ant?
Physics
1 answer:
Dmitry_Shevchenko [17]3 years ago
6 0

Answer:

a = \dfrac{4\pi^2R}{T^2}

Explanation:

The acceleration of a circular motion is given by

a = \omega^2 R

where \omega is the angular velocity and R is the radius.

Angular velocity is related to the period, T, by

\omega=\dfrac{2\pi}{T}

Substitute into the previous formula.

a = (\dfrac{2\pi}{T})^2 R

a = \dfrac{4\pi^2R}{T^2}

This acceleration does not depend on the linear or angular displacement. Hence, the amount of rotation does not change it.

You might be interested in
Use what you know about reflection and absorption of light to complete the sentence.
Blababa [14]

A red ladybug appears red in white light, red in red light, and black in blue light. Those would be the proper selections you'd need.

3 0
3 years ago
Read 2 more answers
A car starts from rest and undergoes an acceleration of 4.0 m/s/s for a time of 5.0 s. What is the final velocity of the car?
Kruka [31]

Answer:

20m/s

Explanation:

acceleration=final velocity-initial velocity/time

4.0m/s²=v m/s-0m/s/5.0sec

5.0sec×4.0m/s²=v m/s-0m/s×5.0m/s/5.0m/s

20m/s=v

7 0
3 years ago
xperiments is conducted. In each experiment, two or three forces are applied to an object. The magnitudes of these forces are gi
creativ13 [48]

Answer:

a) b) d)

Explanation:

The question is incomplete. The Complete question might be

In an inertial frame of reference, a series of experiments is conducted. In each experiment, two or three forces are applied to an object. The magnitudes of these forces are given. No other forces are acting on the object. In which cases may the object possibly remain at rest? The forces applied are as follows: Check all that apply.

a)2 N; 2 N

b) 200 N; 200 N

c) 200 N; 201 N

d) 2 N; 2 N; 4 N

e) 2 N; 2 N; 2 N

f) 2 N; 2 N; 3 N

g) 2 N; 2 N; 5 N

h ) 200 N; 200 N; 5 N

For th object to remain at rest, sum of all forces must be equal to zero. Use minus sign to show opposing forces

a) 2+(-2)=0 here minus sign is to show the opposing firection of force

b) 200+(-200)=0

c) 200+(-201)\neq0

d) 2+2+(-4)=0

e) 2+2+(-2)\neq0

f) 2+2+(-3) \neq0; 2+(-2)+3\neq0

g) 2+2+(-5)\neq0; 2+(-2)+5\neq0

h)200 + 200 +(-5)\neq0; 200+(-200)+5\neq0

6 0
3 years ago
Use the illustration to answer the question :)
Naily [24]

Answer:

This type of heat transfer occurs inside materials, typically solid materials. The heat from the fire is passed from molecule to molecule along the length of the material. The fire will generally follow the heat or sometimes the heat from conduction may cause a new fire to ignite elsewhere. The conduction is happening in the walls of the fireplace

Explanation:

SKATE OR DIE> LOSER

4 0
2 years ago
At which point is the object not moving?
Alenkinab [10]
It’s none of those because it’s moving at a constant rate
8 0
3 years ago
Other questions:
  • When all parts of a circuit are composed of conducting materials, the circuit is said to be
    6·1 answer
  • 3. Imagine a 10kg block moving with a speed of 20m/s<br> calculate the kinetic energy of this block
    8·1 answer
  • A circular horizontal surface having an area of 1020.5 mm2that is completely immersed in a fluid experiences a uniform force of
    13·1 answer
  • A ball is rolled uphill a distance of 12 meters before it slows, stops, and begins to roll back. The ball rolls downhill 20 mete
    6·1 answer
  • Which property do gas particles at the same temperature share?
    8·2 answers
  • Which of these forces could speed up a baseball?
    15·2 answers
  • A hole of radius r is bored through the center of a sphere of radius r. Find the volume v of the remaining portion of the sphere
    15·2 answers
  • What is the Index of refraction of a material of the speed of light in that materials is 2.251 x 10^8 m/s ? Use 3.00 x 10^8 m/s
    12·1 answer
  • Which of these is NOT a line on the tennis court?
    10·2 answers
  • If you have 3 equal plates hanging 2 spaces from the center of a balance, at what distance would you need to place 2 equal plate
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!