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
CaHeK987 [17]
2 years ago
12

A small cylinder is rolled along a ruler and completes two revolutions. The circumference is the distance around the outside of

a circle. What is the circumference of the cylinder? A 4.4 cm B 5.2 cm C 8.8 cm D 10.2 cm
Physics
1 answer:
ivanzaharov [21]2 years ago
3 0

Answer; 4.4cm

Explanation: There is a ruler upon which the cylinder start from 1.4cm and reaches 10.2cm

distance traveled =10.2-1.4=8.8

since this cylinder is small so the linear distance can be approximately taked as rotational distance(as in case of point charge) so

2x2πxr =8.8

so the circumference will be 2πr=4.4cm

 

You might be interested in
A 5kg book rests on a table. How much force is it exerting on the table?​
valentinak56 [21]

Answer:

5 Kg of Force

Explanation:

3 0
3 years ago
Read 2 more answers
What is the potential energy of the system composed of the three charges q1, q3, and q4, when q1 is at point R? Define the poten
Ad libitum [116K]

Answer:

Incomplete question check attachment for complete question

Also it is given that

q1=-0.7uC

q4=-1.7uC

q3=-1.7uC

Also the distance are given as

a=2.2cm=0.022m

d2=3.6cm=0.036m

Explanation:

The potential energy due to point R is given as

The potential energy due to charge q1 and q3 plus the potential energy due to charge q4 and q1 plus the potential energy due to charge q3 and q4

So, let take it one after the other

Potential energy is give as

P.E=kq1q2/r

Therefore,

Potential energy due to charge q1 and q3

U¹³=kq1q3/r

To get the distance between charge q1 and q3, we will apply Pythagoras theorem

r=√(d2²+a²)

r=√(0.036²+0.022²)

r=0.0422m

k is a constant =9×10^9Nm²/C²

Then,

U¹³=kq1q3/r

U¹³=9×10^9×0.7×10^-6×1.7×10^-6/0.0422

U¹³=0.254J

Potential energy due to charge q1 and q4

U¹⁴=kq1q4/r

To get the distance between charge q1 and q4, we will apply Pythagoras theorem

r=√(d2²+a²)

r=√(0.036²+0.022²)

r=0.0422m

k is a constant =9×10^9Nm²/C²

Then,

U¹⁴=kq1q4/r

U¹⁴=9×10^9×0.7×10^-6×1.7×10^-6/0.0422

U¹⁴=0.254J

Potential energy due to charge q3 and q4

U³⁴=kq3q4/r

r=2a=2×0.022=0.044m

k is a constant =9×10^9Nm²/C²

Then,

U³⁴=kq3q4/r

U³⁴=9×10^9×1.7×10^-6×1.7×10^-6/0.044

U¹⁴=0.591J

Then, the total energy is

U= U¹³+ U¹⁴ + U³⁴

U=0.254+0.254+0.591

U=1.099J

Then also, the potential energy is zero because at infinity both U¹³ and U¹⁴ will have infinite potential because their distance apart will be infinite.

6 0
3 years ago
If there is an unusually windy month one might anticipate a. Higher tides b.increased wave size c. Unpredictable currents d. Low
Luden [163]
I belive it is b. increased wave size
6 0
3 years ago
The tangent line needs to touch 0.6, did i draw it correctly? ​
AleksandrR [38]
Here you go! Did you get my answer?
8 0
3 years ago
Read 2 more answers
O resumo do filme Tartarugas Ninjas até hoje.
AVprozaik [17]
Producido a partir de un experimento de laboratorio ido mal, las tortugas adolescentes Leonardo, Michelangelo, Donatello y Raphael viven en las alcantarillas bajo Nueva York. Aunque su sensei roedor, Splinter, aconseja no mostrarse sobre el suelo, los hermanos amantes de la justicia y que comen pizza no pueden permanecer ociosos mientras el malvado Shredder y sus secuaces aterrorizan a la ciudad. Con ayuda de la intrépida reportera April O'Neil (Megan Fox) y su camarógrafo (Will Arnett), las Tortugas salieron a salvar a Nueva York.
espero que esto ayude :)
8 0
3 years ago
Other questions:
  • Anxiety disorders are
    5·1 answer
  • A batter hits a pop-up straight up over home plate at an initial velocity of 21 m/s. the ball is caught by the catcher at the sa
    11·2 answers
  • What is meant by constructive and destructive interference
    15·1 answer
  • If you view a complete free body diagram of a moving object, what two apects of the body's motion will the diagram show?
    14·1 answer
  • In this section we considered a circular parallel-plate capacitor with a changing electric field. Describe the induced magnetic
    8·1 answer
  • If a car has a linear acceleration of 1.8m/s^2 and the radius of its wheels is 0.33m, what is the angular acceleration of the wh
    6·2 answers
  • A transfer of heat within a liquid or gas that involves warm particles moving in currents is
    5·1 answer
  • What atoms of a specific element that have the same number of protons but a different number of neutrons are called:?
    8·2 answers
  • Which statement describes the magnetic field within a bar magnet?
    13·1 answer
  • Ure
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!