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
just olya [345]
3 years ago
6

A 15.0 m long steel rod expands when its temperature rises from 34.0 degrees C to 50.0 degrees C. What is the change in the beam

's length due to the thermal expansion? Steel has a coefficient of linear expansion of 12.0 E -6/C degrees.
0.0612 m
0.00432 m
0.00288 m
0.0119 m
0.0475 m
Physics
2 answers:
azamat3 years ago
8 0
0.00288................
Lilit [14]3 years ago
5 0

Answer:

The change in beam's length due to the thermal expansion is 0.00288 meters.

Explanation:

Given that,

Original length of the steel rod, l = 15 m

Initial temperature, T_i=34^{\circ} C

Final temperature, T_f=50^{\circ} C

The coefficient of linear expansion of the steel, \alpha =12\times 10^{-6}\ /^{\circ} C

Let \Delta l is the change in beam's length due to the thermal expansion. It can be given by :

\dfrac{\Delta l}{l}=\alpha (T_f-T_i)\\\\\Delta l=l\alpha (T_f-T_i)\\\\\Delta l=15\times 12\times 10^{-6}\times (50-34)\\\\\Delta l=0.00288\ m

So, the change in beam's length due to the thermal expansion is 0.00288 meters. Hence, this is the required solution.

You might be interested in
Which of the following molecules found within the cell membrane is thought to be involved in cell self-recognition? a. carbohydr
Nadusha1986 [10]

Answer:

Lipids

Explanation:

Membrane mostly considered largely of lipid  bilayer. It is the double called phospholipids. These glycolipids contains the chain of fatty acids. These fatty acids determines that whether the sheet of membrane is formed around the vesicles or not.

Lipids that provide a liquid to the membrane cells. The consistency of liquid appears as the light oil. It consists of fatty acid chain that includes many fatty acid molecules for example oxygen that permeate from the membrane. These fatty acids repels large molecules fatty acids such as sugar, electrical charged ions etc.

6 0
3 years ago
A mass spectrometer is used to examine the isotopes of uranium. Ions in the beam emerge from the velocity selector at a speed of
Vsevolod [243]

Answer:

0.2 m

Explanation:

magnetic force = centripetal force

qvB = mv² / r

cancel v on both side and make r subject of the formula

r₁ = mv / qB where m = mass of ion, v = velocity of the ion

r₁  = ( 235 × 1.67 × 10⁻²⁶ × 2.81 × 10⁵) / ( 1.6 × 10⁻¹⁹ × 0.605 T) = 1139.24 × 10⁻² = 11.4 m

r₂ = ( 238 × 1.67 × 10⁻²⁶ × 2.81 × 10⁵) / ( 1.6 × 10⁻¹⁹ × 0.605 T)  = 1153.78 × 10⁻² = 11.5 m

D, distance between the impact points formed = d₂ - d₁ where d₂ and d₁ represent the diameters of the charged ions

D = (2 × 11.5 m) - ( 2 × 11.4) = 2 ( 11.5 - 11.4) = 0.2 m

6 0
3 years ago
During a storm, the waves at this lighthouse were 5.0 meters tall top to bottom, and 10.0 m long. The waves impacted every 6.0 s
Sonbull [250]

Answer:

more info

Explanation:

7 0
2 years ago
How t calculate gravitational force
lions [1.4K]

Answer:

F=G(m1m2)/Rsquare if radius is given

F=G(m1m2)/dsquare if distance is given

where,

f =gravitational force

G =gravitational constant

m1=mass of one object

m2=mass of another object

d=distance between two object from their center r=radius of earth/planet

6 0
3 years ago
What is the natural frequency (wo) of a circuit that has an inductor of 0.048 henery's, and a capacitor of 0.0004 farads?
adell [148]

Answer:

The natural frequency will be 228.11 rad/sec

Explanation:

We have given Inductance L = 0.048 Henry

And the capacitance C = 0.0004 farad

We have to find natural frequency

When only inductor and capacitor is present in the circuit then it is known as LC circuit and  Natural frequency of LC circuit is given by \omega _0=\frac{1}{\sqrt{LC}}=\frac{1}{\sqrt{0.048\times 0.0004}}=228.21\ rad/sec

So the natural frequency will be 228.21

4 0
3 years ago
Other questions:
  • Which of the following fields push on a stationary electron?(A) electric and gravitational fields but not magnetic fields. (B) g
    6·2 answers
  • (a) At a certain instant, a particle-like object is acted on by a force F = (5.0 N) i hat - (2.0 N) j + (8.0 N) k while the obje
    10·1 answer
  • What unit is electronegativity measured in?
    5·1 answer
  • Jill tells Bobby that the lightest element in the periodic table is Chlorine because it has an atomic number of 17. Bobby states
    6·1 answer
  • In nuclear fission, a nucleus splits roughly in half. (a) What is the electric potential 5.24 10-14 m from a fragment that has 3
    6·1 answer
  • If a charge travels through a magnetic field, it experiences a magnetic force and its velocity is perpendicular to the direction
    12·1 answer
  • A mass of 0.8 kg is fixed at a vertical spring with an unknown spring constant. When spring is released from rest, it extends to
    9·1 answer
  • I love u whoosever seeing my question​
    13·1 answer
  • Một chất điểm dao động điều hòa trên trục Ox với phương trình vận tốc là
    6·1 answer
  • A 25 newton force applied on an object moves it 50 meters. The angle between the force and displacement is 40.0°. What is the va
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!