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
ycow [4]
3 years ago
15

THE LENGTH OF A PENDULUM IS (1.5±0.01)m AND THE ACCELERATION DUE TO GRAVITY IS TAKEN AS (9.8±0.1)ms-² calculate the time period

of the pendulum with uncertainty in it
Physics
1 answer:
tiny-mole [99]3 years ago
5 0

Answer:

  2.4583 ± 0.0207 seconds

Explanation:

The time period of a pendulum is approximately given by the formula ...

  T = 2π√(L/g)

The maximum period will be achieved when length is longest and gravity is smallest:

  Tmax = 2π√(1.51/9.7) ≈ 2.47903 . . . seconds

The minimum period will be achieved for the opposite conditions: minimum length and maximum gravity:

  Tmin = 2π√(1.49/9.9) ≈ 2.43756 . . . seconds

If we want to express the uncertainty using a symmetrical range, we need to find half their sum and half their difference.

  T = (2.47903 +2.43756)/2 ± (2.47903 -2.43756)/2

  T ≈ 2.4583 ± 0.0207 . . . seconds

__

We have about 2+ significant digits in the given parameters, so the time might be rounded to 2.46±0.02 seconds.

You might be interested in
A camcorder has a power rating of 12 watts. If the output voltage from its battery is 3 volts, what current does it use?
serg [7]

power=voltsxamps=watts.

12=3xamps

4 amps

------------

A. To increase the current, decrease the resistance.

----------------

r=v/i = 53/7

4 0
3 years ago
Read 2 more answers
What is the minimum speed needed to fire a champagne cork a distance of 11m?
Crank

To start with solving this problem, let us assume a launch angle of 45 degrees since that gives out the maximum range for given initial speed. Also assuming that it was launched at ground level since no initial height was given. Using g = 9.8 m/s^2, the initial velocity is calculated using the formula:

(v sinθ)^2 = (v0 sinθ)^2 – 2 g d

where v is final velocity = 0 at the peak, v0 is the initial velocity, d is distance = 11 m

Rearranging to find for v0: <span>
v0 = sqrt (d * g/ sin(2 θ)) </span>

<span>v0 = 10.383 m/s</span>

8 0
4 years ago
Aunt Mary needs to hang a picture in her bedroom. She uses a hammer to drive the nail into the wall. Find the force exerted by t
icang [17]

Answer:

50N

Explanation:

Impulse = Force × Time

25 = Force × 0.5

Force = 25/0.5

= 50N

5 0
3 years ago
I NEED. HELP PLEASE, THANKS! :) Air is an insulator. However, in winter you might experience a spark when your fingers touch a d
Jobisdone [24]

Answer:

This is because of the static electricity which is generated in bodies due to friction. Time to time, the door knob gets touched by many people and the charge on it goes on increasing because of increasing friction. When the charge is increased much, after a considerable time, one may get a spark or a mild shock.

7 0
3 years ago
What is one use for infrared waves? A radar B Medical imaging C Thermal imaging cameras
Vilka [71]

Answer:

Im answering for free points sry

Explanation:

...

7 0
3 years ago
Other questions:
  • A positive point charge Q1 = 2.5 x 10-5 C is fixed at the origin of coordinates, and a negative point charge Q2 = -5.0 x 10-6 C
    7·1 answer
  • Self-registering thermometers are used for:
    12·1 answer
  • During spring semester at MIT, residents of the parallel buildings of the East Campus dorms battle one another with large catapu
    6·1 answer
  • A straight wire carries a current of 238 mA from right to left. What is the magnetic field at a point 10.0 cm directly below the
    13·1 answer
  • The magnet below is cut in half. what will be the result?
    5·2 answers
  • In which direction does a bag at rest move when a force of 20 newton's is applied from the right?
    12·1 answer
  • Does pressure change faster as you move horizontally or vertically? explain reasoning
    8·1 answer
  • Grizzly bears are known to run really fast. What is the momentum of a grizzly bear (about 420 pounds) running at 17 m/s ?
    5·1 answer
  • Which of these is an organism??
    11·1 answer
  • 3. A car has an acceleration of +2m/s2. What does this tell you about the velocity of the car? What
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!