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
Archy [21]
2 years ago
8

A solid cylinder of mass 3.0 kg and radius 0.2 m starts from rest at the top of a ramp, inclined 15°, and rolls to the bottom wi

thout slipping. (For a cylinder I = MR2.) The upper end of the ramp is 1.5 m higher than the lower end. Find the linear speed of the cylinder when it reaches the bottom of the ramp. (g = 9.8 m/s2)
Physics
1 answer:
Lera25 [3.4K]2 years ago
3 0

Answer:

v = 4.4271 m/s

Explanation:

Given

m = 3 Kg

R = 0.2 m

∅ = 15°

h = 1.5 m

g = 9.8 m/s²

v = ?

Ignoring frictional losses, at the bottom of the plane

Total kinetic energy is  =  Potential Energy at the top of plane

Using Law of conservation of energy we have

U = Kt + Kr

m*g*h = 0.5*m*v² + 0.5*I*ω²

knowing that

Icylinder = 0.5*m*R²

ω = v/R

we have

m*g*h = 0.5*m*v² + 0.5*(0.5*mR²)*(v/R)² = 0.75*m*v²

⇒  v = √(g*h/0.75) = √(9.8 m/s²*1.5 m/0.75)

⇒  v = 4.4271 m/s

You might be interested in
Electromagnetic induction is the production of a voltage across a conductor when it is exposed to a varying magnetic field. This
Darina [25.2K]

Answer:

D) Electric power distribution.

Explanation:

Electric power distribution requires high voltages to efficiently transmit electric power. This requires use of a transformer which uses electromagnetic induction.

6 0
3 years ago
Read 2 more answers
What is the capital of prince edward island
Anni [7]

Answer:

The capital of Prince Edward Island is Charlottetown.

Explanation:

hope this helps, and if it did, please mark brainliest :)

8 0
3 years ago
Which of the following statements is FALSE regarding the law of conservation of energy?
Jobisdone [24]

Answer:

D

Explanation:

because it doesn't agree with the law of definite proportion

and energy can niether be created nor destroyed but can be transformed from one form to another

5 0
2 years ago
Shay reacts solid zinc and aqueous copper sulfate to form aqueous zinc sulfate and solid copper. If he reacts 10.1 grams of zinc
zhenek [66]

Answer:

Now since mass of reactant is equal to mass of the product after the reaction so we can say that mass conservation is applicable here

Explanation:

As we know that zinc reacts with copper sulfate

so the reaction is given as

Zn + CuSO_4 --> ZnSO_4 + Cu

so here we have

Zn = 10.1 g

CuSO_4 = 18.6 g

ZnSO_4 = 20 g

Cu = 8.7 g

Now total mass of reactant is given as

M_1 = 10.1 + 18.6 = 28.7 g

Mass of the product is given as

M_2 = 20 + 8.7 = 28.7 g

Now since mass of reactant is equal to mass of the product after the reaction so we can say that mass conservation is applicable here

7 0
3 years ago
Explain what characterises a sound as noise or music​
natta225 [31]

Explanation:

Noise is sound with a continuous structure. Music is composed of sounds with a fundamental frequency and overtones. Noise is composed of sounds with frequencies that range continuously in value from as low as you can hear to as high as you can hear — not necessarily at equal intensity, however.

7 0
2 years ago
Other questions:
  • Rutherford proposed that
    13·1 answer
  • Fn, Friction, (A-D) please help, thank you :).
    11·1 answer
  • 1. To describe the length of a classroom, a student should use what? A) centigrams B) centimeters C) kilometers D) meters 2. Whi
    12·2 answers
  • Dolphins communicate using compression waves (longitudinal waves).  Some of the sounds dolphins make are outside the range of hu
    7·2 answers
  • Question 15
    11·1 answer
  • PLEASE HELP!! I'll mark brainliest for correct answer.
    13·1 answer
  • Which equation will tell you the acceleration of the object?
    10·1 answer
  • How are seeds different from spores?
    15·1 answer
  • How is air resistance similar to gravity? give me two reasons
    8·1 answer
  • Which of the following consists of photovoltaic cells?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!