Answers
Hooke's law is a crucial concept in civil engineering as it relates to materials' behavior under mechanical stress. It establishes a linear relationship between the force applied to an elastic material and the resulting deformation or strain experienced by the material. The law states that deformation is directly proportional to the applied force, as long as the material remains within its elastic limits.
In civil engineering, Hooke's law is significant for several reasons:
Structural Analysis: Hooke's law helps engineers analyze structures and materials under various loads. By understanding how materials deform under stress, engineers can accurately predict structure responses, such as beams, columns, and bridges. This will ensure their safety and stability.
Material Selection: Hooke's law assists civil engineers in selecting appropriate materials for construction projects. It provides insights into materials' mechanical properties, such as elasticity, strength, and stiffness. These are essential considerations in designing structures that withstand anticipated loads.
Design of Elements: Hooke's law is utilized in the design of structural elements to ensure they can withstand expected forces and deformations. By considering materials' elastic behavior, engineers can calculate the required dimensions, reinforcement, and support systems to prevent excessive deformations or failures.
Structural Testing: Hooke's law guides materials and structural component testing and evaluation. Engineers can conduct experiments to measure elastic properties of materials, such as Young's modulus, Poisson's ratio, and shear modulus. This is done by applying known forces and measuring the resulting deformations. These tests validate design assumptions and ensure safety standards compliance.
Load Distribution: Hooke's law helps understand how loads are distributed within a structure. By considering materials' elasticity, engineers can determine how forces are transmitted through structural elements. This allows for an optimized design that efficiently distributes loads and minimizes stress concentrations.
Hooke's law provides a fundamental framework for analyzing materials and structures' behavior under mechanical stress. This enables civil engineers to design and construct safe, efficient, and reliable infrastructure.
Related Questions
i really need help with this. cant anyone help me?
Answers
(A)
Explanation:
The number of atoms for each element on the left side must equal that on the right side. Only (A) satisfies that condition. The other other choices have mismatching number of atoms on either side.
Nowton's third law refers to 'action reaction forces*. These forces are
always:
Answers
equal in magnitude but opposite in direction
What are some uses of thermal energy in everyday life?
Choose all that apply.
moving objects
cooking food
heating water
making light bulbs work
Answers
Answer:
b) cooking food
c) heating water
Explanation:
cooking and heating use thermal energy to transfer heat from the source to another object, in the examples provided; the food and the water. on the other hand, moving objects uses kinetic energy and lightbulbs utilize electrical energy.
Answer:
cooking food
heating water
i think making a light bulb work
Explanation:
if the ball lands at the same level from which he was kicked what amount of time was it in the air
Answers
Given that the speed of the ball is v = 15.6 m/s
The angle is between the ground and the ball is 60 degrees.
The acceleration due to gravity on the moon is g = 1.62 m/s^2
We have to find the time.
The formula to calculate time is
\(t=\frac{2v\sin \theta}{g}\)Substituting the values, the time will be
\(\begin{gathered} t=\frac{2\times15.6\times\sin 60^{\circ}}{1.62} \\ =16.68\text{ seconds} \end{gathered}\)Thus, the time taken is 16.68 seconds.
A boy throws an arrow at an original velocity of 2m / s, aiming to create an angle 0, referring to the balloon at a distance of 3m from the point of departure. Calculate the angle 0 and the height of the arrow.
Answers
Answer:
s=0.204m
Explanation:
Assuming that the arrow is thrown horizontally and there is no air resistance, we can use the following formula to calculate the launch angle 0:
tan(0) = opposite/adjacent = height/distance
where opposite is the height that the arrow reaches and adjacent is the distance to the balloon.
Rearranging the formula, we get:
0 = arctan(height/distance)
0 = arctan(height/3)
Taking the tangent of both sides, we get:
tan(0) = tan(arctan(height/3))
tan(0) = height/3
Now, we need to find the height of the arrow. Using the kinematic equation:
v^2 = u^2 + 2as
where v is the final velocity (0m/s, at maximum height), u is the initial velocity (2m/s), a is acceleration (-9.8m/s^2, due to gravity) and s is the distance travelled vertically until the arrow reaches maximum height.
At maximum height, the final velocity is 0m/s. Therefore, we have:
0 = (2m/s)^2 + 2(-9.8m/s^2)s
Solving for s, we get:
s = 0.204m
Therefore, the height of the arrow is approximately 0.204m.
A sine bar is used to determine the angle of a part feature. The length of the sine
bar=8.000in. The rolls have a diameter of 1.000 in. All inspection is performed on a surface plate. In
order for the sine bar to match the angle of the part, the following gage blocks must be stacked: 2.0000,
0.5000, 0.2500, and 0.0050. Determine the angle of the part feature.
Answers
A sine bar is used to get the angular measurement of a part feature. The angle of the part feature is 18.24°
From the question
Given that,
Length of the sine bar, L = 8.000 in
Diameter of the rolls = 1.000 in
Height under the roll, H = 2.0000 + 0.5000 + 0.0050
= 2.505 in
From sine bar formula,
we know that,
H = sin A x L
sin A = H ÷ L
where,
A ⇒ angle of part feature
H ⇒ height under the roll
L ⇒ length of the sine bar
Substituting values in the above equation,
sin A = H / L
A = sin⁻¹ ( 2.505 ÷ 8 )
A = sin⁻¹ (0.3131)
A = 18.24⁰
Hence the angle of the part feature = 18.24°
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why fan videos be streamed from the cloud to a computer with no lost quality
Answers
Videos can be streamed from the cloud to a computer with no loss in quality because Digital signals are used to transmit data to and from the cloud.
How do digital signals work?
An established or one that represents data as a step made up of discrete values is known as a digital signal. There is no noise produced by digital signals. Electronic signals sent as pulses are used to transmit digital signals to computers. These signals can be found in things like digital phones and computers.
Because digital signals are used to transport data to and from the cloud, it should be noted that videos are said to stream from the cloud to a computer without quality degradation.
Videos can be streamed from the cloud to a computer with no loss in quality because Digital signals are used to transmit data to and from the cloud.
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WILL GIVE BRAINLIEST
Answers
The action that would cause the chair to move to the left is a applying for of 200N
I need help with these 2 questions pls help
Answers
the measure of how many a wave passes on a certain point in a certain time is
frequency
student measuring the mass of a rock recorded 6.759 g, 6.786 g, 6.812 g, and 6.779 g. which other measurment of the block mass would be most precise ?
Answers
Answer: 6.605
Explanation:
The half-life of element X is 20 years. If there are 48 g initially a) How much is there after 80 years
Answers
Answer:
After 80 years there will be 3 g of element X remaining
Explanation:
Given;
the half life of element X = 20 year
initial mass of element X = 48 g
a) How much is there after 80 years
0 year --------------------------> 48 g
20 years -----------------------> (48g / 2) = 24 g
40 years ------------------------> 12 g
60 years ------------------------> 6 g
80 years --------------------------> 3 g
Therefore, after 80 years there will be 3 g of element X remaining.
Ap physics 1 2019 practice set. Can you explain why question #2a is correct?
Answers
Given:
the two blocks have mass
\(m_A\)and
\(m_B\)friction is zero here.
Required:
the magnitude of the acceleration
Explanation:
it is given that the mass of the block mA is much greater than the mass of the mB.
we assume that mass of the block mB is slightly larger than the mA
look at the free body diagram
from the above figure, we can write the equation as
for block mB
\(m_Bg-T=m_Ba...(1)\)and for block mA
\(T=m_Aa.....(2)\)from the equation (1) and (2) we can write
\(a=\frac{m_Bg}{m_A+m_B}\)this is the acceleration of both blocks.
now assume that mass of mA is much greater than the mass mB
then from the above equation we can say that the acceleration is very less.
takes some real values,
we assume that mA= 35 kg and mB=1 kg
so the acceleration is
\(\begin{gathered} a=\frac{1\times9.8\text{ m/s}^2}{1+25} \\ a=0.37\text{ m/s}^2 \end{gathered}\)we can see that acceleration is very small.
as we increase the mass of the mA then acceleration of both is getting less .
General Questions: In a collision between a huge SUV and a small hybrid car, the SUV exerts a larger force on the hybrid than the hybrid exerts on the SUV. A True O B. False C. It depends on whether the collision is a head-on collision or a rear-end collision. D. It depends on which car moves faster
Answers
'In a collision between a huge SUV and a small hybrid car, the SUV exerts a larger force on the hybrid than the hybrid exerts on the SUV' is false.
Every action has an equal and opposite response, according to Newton's third law of motion.
The above law says that, forces on both the vehicles are equal and opposite.
So, the force exerted by a huge SUV and a small hybrid car are the same. And SUV does not exert a larger force as it is huge.
Impact on both the vehicles is also same as the impulse is nothing but the force multiplied by the time of contact. The time of contact is same for both vehicles.
Thus, the above statement is false.
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While sitting in a boat, a fisherman observes that 2 complete waves pass by his position every 4 seconds. What is the period of these waves?A)2s B)8s C) 0.5 s D) 4s
Answers
Answer:
2
Explanation:
Because 2 waves 4 secs means 1 in 2s
The period of these waves is 2s. and The right option is A)2s.
The period of a wave is the time taken by a wave to complete one cycle.
The formula of period from the question is given below.
⇒ Formula:
T = t/2.................... Equation 1⇒ Where:
T = Period of the wavet = time taken for two complete oscillationFrom the question,
⇒ Given:
t = 4 seconds.⇒ Substitute these value above into equation 1
T = 4/2T = 2 seconds.Hence, The period of these waves is 2s.
The right option is A)2s
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Q1. My brakes stop me at -5.5m/s^2 when I lock them up. A puppy runs in front of my car, and I stop just in time 3.5 seconds later. How far did I skid? Q2. I floor the pedal and accelerate from 7.0m/s to 35m/s over a fouth of a mile (0.40km). What is my accelleration?
please explain step by step, much thanks :)
Answers
Explanation:
Q1. Given:
v = 0 m/s
a = -5.5 m/s²
t = 3.5 s
Find: Δx
Δx = vt − ½ at²
Δx = (0 m/s) (3.5 s) − ½ (-5.5 m/s²) (3.5 s)²
Δx ≈ 33.7 m
Q2. Given:
Δx = 400 m
v₀ = 7.0 m/s
v = 35 m/s
Find: a
v² = v₀² + 2aΔx
(35 m/s)² = (7.0 m/s)² + 2a (400 m)
a = 1.47 m/s²
What principle of fitness means that if you stop exercising your fitness level will decrease?
A.
Reversibility
B.
Overload
C.
Specificity
D.
Individuality
Answers
Answer:
A. Reversibility
Explanation:
Because if you don't progress then you do the opposite, you reverse.
Sorry if my explanation is confusing it made sense in my head i just didn't know how to put it.
hope this help. ;)
Answer:
A. Reversibility
Explanation:
Hello! Please help me! I will give brainliest! An engineering company needs to solve a design problem.
It is designing a high-speed train to transport passengers
between Boston and Atlanta
Which statement is a constraint for this project?
A. The train must meet a strict set of safety guidelines.
B. The train must be able to operate during rainy weather.
C. The train must provide a smooth ride for passenger comfort.
D. The train design must be completed in 12 months
Answers
Answer:
The train company has to consider the speed of the design
Explanation:
in the question it says it's designing a high-speed train so the speed takes priority because that's the main goal
Answer:
D
Explanation:
A car wheel turns through 12pi in 10.7s calculate the angular speed of the wheel
Answers
Answer:
The answer should be D..
Explanation:
Consider the 5-step staircase. All steps provide an equal elevation gain. The potential energy (PE) on the 4th step is 40.0 J. Determine the PE and KE values of the ball at the indicated positions. I NEED KE4
Answers
Potential energy is the energy acquired by an object by virtue of its position.
Potential energy of the ball at the 4th step = 40 J
Let the mass of the ball, m is 1 kg
So, potential energy at 4th step,
mgh = 40
h = 40/1 x 9.8
h = 4.1 m
So, the height of each steps, h' = 4.1/4
h' = 1.025 m
Therefore, potential energy at 1,
PE₁ = 1 x 9.8 x 1.025
PE₁ = 10.045 J
Therefore, potential energy at 2,
PE₂ = 1 x 9.8 x 2 x 1.025
PE₂ = 20.09 J
Therefore, potential energy at 3,
PE₃ = 1 x 9.8 x 3 x 1.025
PE₃ = 30.13 J
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Which of the following is the most appropriate description of an electric current?
Answers
If this isn’t what your looking for I need the options they gave you
examples of cultural lag
Answers
Answer:
when you lag in culture
Explanation:
it makes sense
Answer:
Well it could possibly be because of where you live, or if there is a strong power source or WiFi thing.
Explanation:
I’m sorry if my answers not the best I’m just doing it of my own experience from bad WiFi.
A force of 570 N keeps a certain ideal spring stretched at a distance of 0.700 m.
A). What is the potential energy of the spring when it is stretched 0.700 m?
B). What is its potential energy when it is compressed 8.00 cm?
Answers
Answer:
399j and 456j
Explanation:
(a)spring energy= force * distance
spring energy=570 * 0.700= 399 joules
(b) convert 8.00 cm to m we have 0.08m
E =f * s
E=570 *0.08= 456j
The potential energy of the spring when it is stretched 0.700 m would be 199.5 Joules, and the potential energy when it is compressed 8.00 cm would be 2.60 Joules.
What is the spring constant?The spring constant is used to define the stiffness of the spring, the greater the value of the spring constant stiffer the spring and it is more difficult to stretch the spring.
The mathematical relation for calculating the spring constant is as follows
F = - Kx
As given in the problem, if a force of 570 N keeps a certain ideal spring stretched at a distance of 0.700 m.
k = 570 / 0.7
k = 814.28 N / m
The potential energy stored in spring when it is stretched 0.700 m
E = 1/2 kx²
=0.5×814.28×0.7²
= 199.5 Joules
The potential energy stored in spring when it is stretched 8 cm
E = 1/2 kx²
=0.5×814.28×0.08²
=2.60 Joules
Thus, the potential energy of the spring when it is stretched 0.700 m would be 199.5 Joules, and the potential energy when it is compressed 8.00 cm would be 2.60 Joules.
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A satellite with a mass of 120kg fires its rocket thrusters, which give an impulse of 7440kg•m/s . What was the total change in the velocity of the satellite- that is, what was the total v
Answers
Impulse = Change in momentum
Impulse = force x time = mass x change in velocity
Change in velocity = Impulse / mass
In this case, the impulse is 7440 kg*m/s, and the mass of the satellite is 120 kg.
Therefore, the total change in velocity of the satellite is:
Change in velocity = Impulse / mass = 7440 kg*m/s / 120 kg = 62 m/s
So the total change in the velocity of the satellite is 62 m/s.
Visible light travels at a speed 3.0 × 108 of m/s. If red light has a wavelength of 6.5 × 10–7 m, what the frequency of this light?
Answers
Answer:
speed /wavelength = frequency
f = 3×10*8 /6.5×10*7
f = 4.62
Find the motor efficiency with 10.0 volts, 0.08 amperes and 05.50 seconds
Answers
Answer:
Efficiency is simply output (useful) power divided by input power, with the difference being losses due to imperfections in design and other inevitabilities.
Explanation:
in a periscope, what is the nature of the reflected image? is it a virtual image or a real one?
Answers
Answer:
mirrors set parallel to each other at 45 degree angle.
real
Which graph represents y=x²-b.
where b is a positive real number?
J
K
L
M
N
Answers
According to the question,M is a positive real number.
What is the positive ?
The positive is having an optimistic outlook on life. It means looking on the bright side of things, maintaining a positive attitude, and having hope for the future. Having a positive attitude can help you to stay motivated and focused, even when things get tough. It can also help you to build strong relationships with others and make the most of opportunities. Being positive can lead to greater success and improved well-being.It can also help you to build strong relationships with others and make the most of opportunities. Being positive can lead to greater success and improved well-being.
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ohm's law Circuits
Calculate the total Resistance, Current, and Power in the circuits
Answers
The total Resistance is 14 ohm, Current is V/14 and Power is V²/14.
R total= R1+R2+R3+R4 = 2+2+6+4= 14ohm
The 4 resistances are connected in series.
Current across R total = I = V/R total = V/14
Power= I. V= V/14 × V= V²/14
About Ohm's lawOhm's law is one of the physics that is quite close to everyday life, because in everyday life, of course, we cannot be separated from electronic devices. As is known, almost all electronic devices require electricity to be turned on or operated. Every electrical device has different voltages, depending on their needs.
When the electricity supplied exceeds the required limit of the device, it is likely that the device will be damaged. Electricity itself appears because basically every object contains two types of charge, namely positive (protons) and negative (electrons). And when the negative charge or electrons move, an electric current will appear.
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A elephant kicks a 5.0 kg stone with 150 J of kinetic energy.
What is the stone's speed?
Please help!
Answers
v= 7.75m/s
A elephant kicks a 5.0 kg stone with 150 J of kinetic energy.
What is the stone’s speed?
Answer: 7.75 m/s
Which process is defined as breaking down rocks into smaller pieces without changing the rocks' compositions
Answers
Answer:
mechanical weathering
Explanation:
Answer:
Mechanical weathering is responsible for the composition of a rock
Explanation:
The answer is (D)