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
Alex787 [66]
3 years ago
5

A grandfather clock is controlled by a swinging brass pendulum that is 1.2 m long at a temperature of 27°C. (a) What is the leng

th of the pendulum rod when the temperature drops to 0.0°C? (Round your answer to four significant figures.) mm
Physics
1 answer:
stealth61 [152]3 years ago
3 0

Answer:

L2 = 1.1994 m

the length of the pendulum rod when the temperature drops to 0.0°C is 1.1994 m

Explanation:

Given;

Initial length L1 = 1.2m

Initial temperature T1 = 27°C

Final temperature T2 = 0.0°C

Linear expansion coefficient of brass x = 1.9 × 10^-5 /°C

The change i length ∆L;

∆L = L2 - L1

L2 = L1 + ∆L ...........1

∆L = xL1(∆T)

∆L = xL1(T2 - T1) ......2

Substituting the given values into equation 2;

∆L = 1.9 × 10^-5 /°C × 1.2m × (0 - 27)

∆L = 1.9 × 10^-5 /°C × 1.2m × (- 27)

∆L = -6.156 × 10^-4 m

From equation 1;

L2 = L1 + ∆L

Substituting the values;

L2 = 1.2 m + (- 6.156 × 10^-4 m)

L2 = 1.2 m - 6.156 × 10^-4 m

L2 = 1.1993844 m

L2 = 1.1994 m

the length of the pendulum rod when the temperature drops to 0.0°C is 1.1994 m

You might be interested in
Because atoms of elements in the same group of the periodic table have the same number of neutrons, they have similar properties
AURORKA [14]
False. What actually determines the properties of elements are the electrons, or aka valence electrons. They are used to bond, which determines its properties. 
4 0
3 years ago
PLEASE HELP AND HURRY
andreyandreev [35.5K]
C
I took the tests earlier hope this helps
7 0
3 years ago
What valves in this diagram need to be opened to allow liquid to flow?
-BARSIC- [3]
I'd guess at valve B. more information about the interesting question would help.
5 0
3 years ago
What type of motion occurs when an object spins around an axis without altering its linear position?
myrzilka [38]
<h2><em>C. translational motion</em></h2><h2><em>HOPE IT HELPS !!!!!</em></h2>
8 0
3 years ago
The total momentum of two marbles before a collision is 0.06 kg-m / s. no outside forces act on the marbles. what is the total m
SpyIntel [72]
Hi my friend, since momentum is always conserved without external forces, the momentum after the collosion will still be 0.06 kg*m/s. Hope it helps☺
4 0
3 years ago
Other questions:
  • Using monochromatic light of 410 nm wavelength, a single thin slit forms a diffraction pattern, with the first minimum at an ang
    13·1 answer
  • Process that could be used to separate dissolved particles from the liquid in a solution
    6·1 answer
  • 1. In what year did India (our second most populous country) begin to produce more energy than Spain?
    9·1 answer
  • A measure of the amount of matter in an object is its
    14·1 answer
  • When air resistance balances the weight of an object that is falling, the velocity _____.
    10·1 answer
  • A train is moving with a velocity of 70 km/h. If north is taken as the positive direction, what is the direction of movement of
    15·1 answer
  • Please help me with this 29 points
    12·1 answer
  • 4. Tectonic plates are located on the __ and __.<br><br> 6. Inner core is made of ___ and ____.
    7·2 answers
  • From what material did the moon form?How are eras and periods of the geologic time scale named?
    9·1 answer
  • A box with a weight of 100 N rests on a horizontal floor. The coefficient of static friction is = 0,40 and the coefficient of ki
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!