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
Lina20 [59]
3 years ago
11

. If a pendulum-driven clock gains 5.00 s/day, what fractional change in pendulum length must be made for it to keep perfect tim

e
Physics
1 answer:
inn [45]3 years ago
6 0

Answer:

The appropriate response will be "Length must be increased by 0.012%".

Explanation:

The given values is:

ΔT = 5 s/day

Now,

⇒ \frac{\Delta T}{T} =\frac{5}{24\times 60\times 60}

On multiplying both sides by  "100", we get

⇒ \frac{\Delta T}{T}\times 100 =\frac{500}{24\times 60\times 60}

⇒ \frac{\Delta T}{T}\times 100=0.005787 (%)

∵  T=2\pi\sqrt{\frac{l}{g} }

On substituting the values, we get

⇒ \frac{\Delta T}{T}% = \frac{1}{2}\times \frac{\Delta l}{l}%

On applying cross multiplication, we get

⇒ \frac{\Delta l}{l}% = 2\times \frac{\Delta T}{T}%

⇒        = 2\times 0.05787

⇒        = 0.011574

⇒        = 0.012%

You might be interested in
Which of of the following is a physical change ice melting into a puddle of water,Leaves changing color in fall, Or baking a cak
Tom [10]

Answer:

ice melting

Explanation:

Because once it melts you can change it back to ice.

4 0
3 years ago
Please help me! <br>to prove this equation of a thin convex lens..​
kipiarov [429]

Answer:

can u try to calculate it and you will get the answer

5 0
3 years ago
A point charge of 4.0 µC is placed at a distance of 0.10 m from a hard rubber rod with an electric field of 1.0 × 103 . What is
Afina-wow [57]

The electric potential energy of the point charge is 4.

the electric potential energy of the point charge at 1.3 m is 5.2.

4 0
3 years ago
Read 2 more answers
An LED operation at 850 nm center wavelength has a spectral width of 45 nm. What is the pulse spreading in ns/km
Papessa [141]

Answer:

\mathbf{\dfrac{\sigma_{mat}}{L} = 3.6 \ ns/ km}

Explanation:

From the given information, the LED is operating with a given wavelength of 850 nm or 0.85 μm.

Hence, the material dispersion is \dfrac {d \tau _{mat}}{d \lambda } \simeq (80 \ ps / (nm.km) \ )

Now, using the pulse spread formula:

\dfrac{\sigma_{mat}}{L} = \dfrac{d \tau _{mat} }{d \lambda} \sigma \lambda

\dfrac{\sigma_{mat}}{L} = (80 \ ps/ ( m.km) \ )  \times (45 \ nm)

Thus, the pulse spreading as a result of  material dispersion is:\mathbf{\dfrac{\sigma_{mat}}{L} = 3.6 \ ns/ km}

3 0
3 years ago
• What are common questions, concerns, practices, and experiences across various world religions? Include indigenous religions i
faltersainse [42]

<u>Answer:</u>

<em>They are a lot of religions and faiths across the globe. </em>

<u>Explanation:</u>

There are  a lot of monotheistic and polytheistic religions across the world that took origin at different points in the past.

Some of them are:

  • Christianity- It is a monotheistic religion based on the teachings of Jesus Christ believed to be the son of god.  
  • Confucianism it evolved in China and is based on the teachings scholar and philosopher Confucius. It is a largely secular and humanistic.
  • Buddhism it is based on the life and teachings of Gautama Buddha. Buddhism advocates a way of life with meditation and instructs its followers to be compassionate, kind and wise.  
  • Hinduism –It evolved during the period of Indus valley civilisation and is a polytheistic religion. Hinduism beliefs mention rebirths or ‘punarjanma’.
  • Islam- Islam is a monotheistic religion.It considers Muhammad as the messenger of only god Allah.
5 0
3 years ago
Other questions:
  • A rocket, weighing 43576 N, has an engine that provides an upward force of 11918 N. It reaches a maximum speed of 713 m/s. For h
    15·1 answer
  • Newton’s third law explains what happens when two objects ______.
    15·1 answer
  • Ernest Rutherford (who was the first person born in New Zealand to be awarded the Nobel Prize in chemistry) demonstrated that nu
    8·1 answer
  • What statement is best supported by the information in the chart?
    6·1 answer
  • Three point charges (some positive and some negative) are fixed to the corners of the same square in various ways, as the drawin
    14·1 answer
  • This direct relationship graph shows that the position of the car as time elapses.
    9·1 answer
  • The electric current is a
    7·1 answer
  • The 75.0 kg hero of a movie is pulled upward with a constant acceleration of 2.00 m/s2 by a rope. What is the tension on the rop
    8·1 answer
  • Which of the following has zeros that are not significant?
    10·1 answer
  • A stomp rocket takes 3.1 seconds to reach its maximum height.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!