Question

1.
Grandfather clocks are decorative clocks with a pendulum measuring
out the passing of a second. How long of a pendulum is needed to
have a period of 1 second?

2.if you take a simple pendulum to moon and venus, how its
time period will be affected if its lenght is 80 cm?

Answer #1

(1) period of pendulum T = 1 s;

expression for time period is given as;

square both the sides and re-arrange the equartion as;

(2) length of the pendulum L = 0.8 m;

gravity on moon and venus are given as;

time period on moon and venus;

a) If you take a simple pendulum to moon and Venus, how its time
period will be affected if its length is 80 cm?
b) If you decrease the length of the pendulum to half of the
original and increase mass to double of original, what will happen
to its period on Earth?
c) If an oscillating spring system is taken to the moon, what
will happen to its periods?
d) If the length of the spring is doubled, what...

1. Suppose that a grandfather clock (a simple pendulum) is
running slowly; that is, the time it takes to complete each cycle
is greater than it should be. You should shorten the pendulum to
make the clock keep correct time. True or
False?
2. In principle, the
motions of a simple pendulum and an object (oscillating) on an
ideal spring can both be used to provide the basic time interval or
period used in a clock. Which of the two...

1) We have a simple pendulum that is 0.75 meters long. Determine
the period?
2) Determine what is the length of a pendulum of one second
3) We know Moon the gravitational acceleration is one sixth that
on Earth. Determine what would be the length of a pendulum that has
a period of one second on the surface of our satellite.
.

The time period of a simple pendulum is directly related to the
square root of its length. An 8-foot pendulum has a period of 3.2
seconds. Round all answers off to the nearest hundredth. Find the
period for each of these:
a. A grandfather clock that has a pendulum of length 3 feet.
b. A mantle clock that has a pendulum of length 6 inches.
c. The longest pendulum in the world whose length was 4440
feet.
d. If you...

Simple Pendulums
“Periodic motion” is motion that repeats itself. One example of
“periodic motion” is a simple pendulum. The mass of a simple
pendulum is all at its bottom. For a simple pendulum, the time it
takes for one complete swing (a.k.a. the “period”of the pendulum)
depends only on the length of the string:
Period = 2π times square root of (length /
g).
If the length is measured in centimeters and the pendulum is on
Earth where g =...

1. You determine the period of the pendulum motion. Keeping the
length of the string constant, you replace the object with one that
has bigger mass. Will the period be affected?
a. No, the period will remain the same because it depends only
on the length of the string.
b. Yes, the period will increase because heavier objects have
greater inertia or have greater resistance to changes in their
state of motion.
c. Yes, the period will decrease because the...

Show detailed work.
1. A spring is suspended from a bar. When a load of 6.0
N is added to the bottom of the spring, its length changes from
0.040 m to 0.13 m.To find the spring constant of the spring you
would use:
a. 0.09/6.0
b. 6.0/0.13
c. 6.0/0.09
d. 0.13/6.0
2. A spring obeys Hook's law. A force of 2 N extends the
spring by 0.3 m. A 6.0 N force will extend the spring
by
a. 0.60...

As an illustration of the point made in Footnote 13 in Section
4.7, consider a black box that is approximately a 10 cm cube with
two binding posts. Each of these terminals is connected by a wire
to some external circuits. Otherwise, the box is well insulated
from everything. A current of approximately 1 A flows through this
cir- cuit element. Suppose now that the current in and the current
out differ by one part in a million. About how...

Exercises
1. How is the image formed by the mirror different from the
lenses ?
Exercises: Problem Solving
1. The focal point is found 20 cm from a double concave lens
where an object is placed 12 cm. Find the image distance.??
2- A 2.8 cm diameter coin is placed 25 cm from a double concave
lens with focal length of -12 cm. Find the image distance and
diameter of the image??
3. An object that is 8 cm high...

1. In the following ordinary annuity, the interest is compounded
with each payment, and the payment is made at the end of the
compounding period.
Find the amount of time needed for the sinking fund to reach the
given accumulated amount. (Round your answer to two decimal
places.) $215 monthly at 5.8% to accumulate $25,000
Please provide number of years:
2. In the following ordinary annuity, the interest is compounded
with each payment, and the payment is made at the...

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