Question

**If you have a pendulum clock which runs exactly to time
on the Earth, and take it to the Moon, how many (Earth) hours will
pass before the clock records one (Moon) hour? (The gravitational
force on the Moon is only 1/6 ^{th} that on the
Earth.)**

Answer #1

(a) Your pendulum clock which advances 1.0 s for every complete
oscillation of the pendulum is running perfectly on Earth at a site
where the magnitude of the acceleration due to gravity is 9.80
m/s2. You send the clock to a location on the Moon where the
magnitude of the acceleration due to gravity is 1.65 m/s2. Does the
clock run fast or slow on the Moon?
(b) If the clock is started at 12:00 noon, what will it read...

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...

What happens if you take a clock from Kentfield up to the top of
Mt. Tamalpais? Does it
gain or lose time, or is it unaffected
(a) if your clock is a pendulum clock? Explain.
(b) if your clock keeps time based on the period of up and down
oscillations of a mass
on a spring? Explain.
(NOTE TO ANY ASTROPHYSICISTS IN THE CLASS: Ignore gravitational
time
dilation, as predicted by Einstein’s general theory of
relativity.)
The hint to this...

We have two oscillators, used to measure time. One is a vertical
mass-and-spring system. The other is a simple pendulum. On earth
the two systems have the same period. How do their periods compare
on the moon?
A. Both periods become longer.
B. only the pendulum's period becomes longer
C. Only the mass-and-spring's period becomes longer
D. Neither period changes at all.
E. none of the above
If a mass hangs from a vertical spring and is moving up and...

An undiscovered planet, many light-years from Earth, has one
moon which has a nearly circular periodic orbit. If the distance
from the center of the moon to the surface of the planet is 2.07500
× 105 km and the planet has a radius of 3775 km and a mass of 6.40
× 1022 kg, how long (in days) does it take the moon to make one
revolution around the planet. The gravitational constant is 6.67 ×
10-11 N·m2/kg2.

An undiscovered planet, many light-years from Earth, has one
moon, which has a nearly circular periodic orbit. If the distance
from the center of the moon to the surface of the planet is
2.225×105 km and the planet has a radius of 3.150×103 km and a mass
of 7.90×1022 kg , how long (in days) does it take the moon to make
one revolution around the planet? The gravitational constant is
6.67×10−11N·m2/kg2.

An undiscovered planet, many light-years from Earth, has one
moon, which has a nearly circular periodic orbit. If the distance
from the center of the moon to the surface of the planet is
2.090×10^5 km and the planet has a radius of 3.600×10^3 km and a
mass of 7.00×10^22 kg , how long (in days) does it take the moon to
make one revolution around the planet? The gravitational constant
is 6.67×10^−11N·m^2/kg^2.
T=___________days

The first frequency heard strongly above the fundamental for a
pipe closed at one end is the
Group of answer choices
5th harmonic
4th harmonic
2nd harmonic
3rd harmonic
Flag this Question
You have a pendulum and a mass /spring system which both have
the same period of 2 seconds. You take them both to the moon where
the acceleration of gravity is only 1/6th as large ( 9.8/6
m/sec/sec ) Which one will have the longest period on the...

Problem: Trip to the moon
You plan to take a trip to the moon. Since you do not have a
traditional spaceship with rockets, you will need to leave the
earth with enough speed to make it to the moon. Some information
that will help during this problem:
mearth = 5.9742 x 1024 kg
rearth = 6.3781 x 106 m
mmoon = 7.36 x 1022 kg
rmoon = 1.7374 x 106 m
dearth to moon = 3.844 x 108 m...

15. [2pt]
Which star is brighter as seen from the Earth? (you only have one
try for this problem)
A) A star with apparent magnitude 6
B) A star with apparent magnitude 15
16. [3pt]
How many times brighter is it?
Answer:
17. [2pt]
Which star is more luminous? (you only have one try for this
problem)
A) A star with absolute magnitude 12
B) A star with absolute magnitude -1
Answer:
18. [3pt]
How many times more luminous is...

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