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
nydimaria [60]
3 years ago
11

A stone with mass 0.80 kg is attached to one end of a string 0.90 m long. The string will break if its tension exceeds 60.0 N. T

he stone is whirled in a horizontal circle on a frictionless tabletop; the other end of the string remains fixed. (a) Draw a free-body diagram of the stone. (b) Find the maximum speed the stone can attain without the string breaking.

Physics
1 answer:
AleksandrR [38]3 years ago
5 0

Answer:

v=8.2158m/s

Explanation:

(a) Free-body diagram attached.

(b) The stone attached with the string experiences both centripetal (towards the center) and centrifugal (away from the center) forces. The tension of the string counters the centrifugal force until it breaks.

We know that,

Centrifugal force = \frac{mv^2}{r}

where,

m = mass of the stone

v = velocity of the stone

r = length of the string

To find the maximum speed attained by the stone without the string breaking, we must equate:

\frac{mv^2}{r} =60

or, v=\sqrt \frac{{r\times 60}}{m} } =\sqrt{\frac{0.90\times60}{0.80} } =8.2158m/s

You might be interested in
A(n) __________ is the idea that people should be able to purchase the essentials of life by working a forty-hour workweek. Many
jek_recluse [69]

Answer:

A(n)  <u>living wage</u> is the idea that people should be able to purchase the essentials of life by working a forty-hour workweek. Many local municipalities have as a result set higher minimum wages than the federally mandated minimum wage to accomplish this goal.

Explanation:

Living wage is the idea given to reduce poverty specially in cities with higher costs. It's based on the fact that one who works forty hours per week, he or she should be able to afford the basic needs of life that includes the water, food and shelter. Research has shown that the implementation of this concept has played the role in reducing poverty and enhancing the quality of life of workers. Countries like New-Zealand and united kingdom has supported this concept.

5 0
3 years ago
NO LINKS! What are the definitions of initial horizontal velocity and initial vertical velocity? Please help! This like is my 10
dmitriy555 [2]

Answer:

Additionally, the initial horizontal velocity may be calculated by measuring the diameter d of the ball and dividing the result by the amount of time t required for the ball to pass across the photogate. Vo = d/t is the formula.

Initial vertical velocity is the vertical component of the initial velocity: v 0 y = sin 0 sin 0 = (30.0 m/s) sin 45° = 21.2 m/s

Explanation:

Hope it helps:)

8 0
3 years ago
What is the basic difference between ultraviolet, visible, and infrared radiation?
N76 [4]
To me the basic difference is their frequency and wavelength.

For frequency :
Infrared < visible light < ultraviolet

For wavelength :
Infrared > visible light > ultraviolet
3 0
4 years ago
A construction worker pushes a wheelbarrow with a total mass of 50.0kg. What is the acceleration of the wheelbarrow if the net f
Zarrin [17]
Did you try googling it lol thats what i do if its a problem like that. sometimes there are websites that answer it you just have to look really hard
5 0
3 years ago
The hydronium ion concentration of your gastric fluid is 1.0 x 10^-2. you drink a tablespoon of milk of magnesia, which raises t
slamgirl [31]

Answer:

[OH⁻] = 1 × 10⁻¹¹ mol/dm³

Explanation:

Since the hydronium ion concentration of the gastric fluid is [H₃O]⁺ = 1.0 × 10⁻².

The pH at this point is pH = -log₁₀[H₃O]⁺ = -log₁₀[1.0 × 10⁻²] = 2

When milk of magnesia is added, the pH increases by one unit, so the new pH is 1 + 2 = 3

Since pH + pOH = 14, then pOH = 14 - pH = 14 - 3 = 11

The hydroxide ion concentration of the fluid is gotten from

pOH = -log₁₀[OH⁻]

11 = -log₁₀[OH⁻]

-11 = log₁₀[OH⁻]

taking antilog

[OH⁻] = 1 × 10⁻¹¹ mol/dm³

7 0
4 years ago
Read 2 more answers
Other questions:
  • Which term names the force every mass exerts on every other mass?
    11·2 answers
  • You are sitting on a merry-go-round at a distance of 2m from its center. It spins 15 times in 3 min. What distance do you move a
    14·1 answer
  • The fact that the magnetic field generates a force perpendicular to the instantaneous velocity of the particle has implications
    13·1 answer
  • If san andreas fault slips 2.5 cm each year how far would it separate in 100 years
    5·1 answer
  • Which statements about tornadoes are true? Check all that apply.
    9·2 answers
  • A particle with unit charge ​(qequals​1) enters a constant magnetic field Bequals2iplus2j with velocity vequals22k. Find the mag
    5·1 answer
  • Why do other stars look much dimmer than the sun?
    7·1 answer
  • A sound wave produced by a chime 515 m away is heard 1.50 s later. What is the speed of the sound in the air?
    8·1 answer
  • A cat weighing 7 kg chases a mouse at a speed of 4 m/s. What is the kinetic energy of the cat?
    14·1 answer
  • Question 8
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!