for the bending design of a prismatic beam, usually the required beam's section modulus is determined first. which of the following is the correct expression of the section modulus in terms of the maximum bending moment and allowable bending stress of the beam?
Answers
The correct expression for the section modulus (S) of a prismatic beam in terms of the maximum bending moment (M) and allowable bending stress (σ) is: S = M / σ
The correct expression of the section modulus in terms of the maximum bending moment and allowable bending stress of the beam is given by the formula Z = Mmax / σallowable. Here, Z represents the section modulus of the beam, Mmax is the maximum bending moment that the beam can withstand without breaking, and σallowable is the allowable bending stress for the material used in the beam. The section modulus is an important parameter in the design of a prismatic beam as it determines the resistance of the beam to bending. The greater the section modulus, the greater the beam's resistance to bending. Therefore, in order to design a prismatic beam that can withstand the required bending moment, it is necessary to determine the appropriate section modulus based on the maximum bending moment and allowable bending stress of the beam.
This equation is used to determine the required beam's section modulus for bending design. By knowing the maximum bending moment and allowable bending stress, you can calculate the necessary section modulus to ensure the beam can withstand the applied forces.
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Related Questions
What is the electric flux through the surface shown in the figure? Assume that E = 300 N/C.
a) 300 N
b) 300 C
c) 900 N/C
d) 900 NC
Answers
The electric flux through the surface shown in the figure is 900 N/C.
Electric flux is a measure of the electric field passing through a given surface. It is calculated by taking the dot product of the electric field vector and the area vector of the surface. In this case, the electric field is given as E = 300 N/C.
To calculate the electric flux, we need to know the magnitude of the electric field and the area of the surface. The electric field is given as 300 N/C, and the surface is not specified in the question.
Therefore, we cannot determine the exact area of the surface. However, regardless of the size of the surface, the electric flux will always be proportional to the product of the electric field and the area.
Since the electric field is given as 300 N/C, and we need to find the electric flux in N/C, the answer must be in the same unit.
Therefore, the correct answer is 900 N/C, option (c).
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what is the potential energy of an object with 14kg of mass and 3.4 m high
Answers
\(\\ \rm\Rrightarrow PE=mgh\)
\(\\ \rm\Rrightarrow PE=14(10)(3.4)\)
\(\\ \rm\Rrightarrow PE=476J\)
a force of 16n to the west is applied to each
Answers
which mission was nasa’s first attempt to land on the moon?
Answers
The American Apollo 11 landed the first man on the moon on July 20, 1969.
A lunar landing occurs when a spacecraft reaches the surface of the Moon. This includes manned and robotic missions. On September 13, 1959, the first man-made object to touch the Moon was the Soviet Luna 2. The American Apollo 11 landed the first man on the moon on July 20, 1969. There are six U crew members.
There were landings in the south between 1969 and 1972, as well as multiple bulk landings, with no soft landing between August 22, 1976 and December 14, 2013.
The United States is the only country to have successfully to land a man on the moon, the last time he left the lunar surface in December 1972. All soft landings occurred on the near side of the Moon until January 3, 2019, when the Chinese spacecraft Chang'e-4 has landed on the far side for the first time.
The following countries and entities have performed missions to the Moon (in chronological order): Soviet Union, United States, Japan, European Space Agency, China, India, Luxembourg, Israel, Italy, South Korea, and United Arab Emirates. Five spacecraft that did not specifically study the Moon also visited the Moon; four spacecraft flew over it for gravity assistance, and the Explorer 49 radio telescope was placed in a Moon-centered orbit to use the Moon to block ground-based radio sources.
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How does the time in air change with initial horizontal velocity
Answers
Answer:
The projectile's horizontal speed is constant throughout the entire trajectory because gravity only acts downwards in the vertical direction.
Explanation:
I did this in Physics a while ago but I believe my answer is correct.
Hope this helps! (:
Einstein calculated that ripples of gravity travel at exactly the speed of _____
Answers
Answer:
299,792,458 m/s = speed of light
Explanation:
Assuming a current is flowing, what increases the strength of the magnetic field of a coiled electrical wire?.
Answers
Answer:The amount of current flowing
Explanation:this derives from amperes law of maxwell’s equations. It’s easiest to see in differential form. The curl of the magnetic field is proportional to the current plus the change (time derivative) in electric field
The load (mass) that a moving wagon was carrying was doubled but the force pulling the load was kept the same. Which of the following is the best assumption about the object’s acceleration?
A The object will have no acceleration.
B The object will travel at a constant speed.
C The object’s rate of acceleration will increase.
D The object’s rate of acceleration will decrease.
Answers
Answer: B
Explanation: I answered this question already at my school.
what is a rocket engine that fires against the direction a spacecraft is headed so the spacecraft slows down?
Answers
The rocket engine that fires against the direction a spacecraft is headed so the spacecraft slows down is called Retro engine.
Spacecraft are the space automobiles that might be capable of flying out of doors of the Earth’s ecosystem in the area. They offer us a method of transportation from the Earth to the area and objects in it. There may be numerous spacecraft that are familiar to most of people e.g. Apollo 11 which took Neil Armstrong and his group to the Moon.
Crewed Spacecraft – Crewed spacecraft are the ones that carry people to the area. There have been several crewed spacecraft to the area consisting of Vostok 1 – the first crewed spacecraft in records dispatched by way of the United States of America.
Earth-Orbit Satellites – all of the satellites, which orbit across the Earth, fall in this class. The maximum tremendous satellite in orbit on the Earth is Hubble Telescope.
Space Probe – these are unmanned spacecraft that might be fitted with medical instruments for exploring objects in space e.g. planets, Moon, and solar.
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NEED ASAP STEP BY STEP EXPLANATION
A spring stretches by 0.12 m when some apples weighing 3.2 N are supported from it. What is the Spring Constant?
Answers
\(\\ \sf\longmapsto k=-\dfrac{F}{x}\)
\(\\ \sf\longmapsto k=-\dfrac{3.12}{0.12}\)
\(\\ \sf\longmapsto k=-26N/m\)
A bus accelerates for 25 s at a rate of 0.2 m/s². how much does its velocity increase?
Answers
Answer: Velocity increase is, 5m/s.
Explanation: Given,
t = 25s, acceleration(a)=0.2m/s², assuming(required but not given) initial velocity = 0m/s.
According to laws of motion,
v = u + at,
v : Final velocity
u : Initial velocity
a : Acceleration
t : Time
Therefore, on putting values, as given, we get
v = 0 + (0.2)(25)
v = 5m/s
Therefore, velocity increase is 5m/s.
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V=?
Given
u=0
a=0.2m/second square
t=25second
Therefore ;
Velocity = 5m/s
Rank the types of radiation in order of their energy, from least to greatest.a. Radio waves b. Microwavec. Infraredd. Red visible light
Answers
From least to greatest energy, the types of radiation are:
a. Radio Waves
b. Microwaves
c. Infrared
d. Red Visible Light
What is radiation?Radiation refers to the emission of energy as electromagnetic waves or as moving subatomic particles, especially high-energy particles that cause ionization.
There are two main types of radiation: electromagnetic radiation and particulate radiation.
Electromagnetic radiation includes radio waves, microwaves, infrared radiation, visible light, ultraviolet radiation, X-rays, and gamma rays. Particulate radiation includes alpha particles, beta particles, and neutrons. Radiation plays a critical role in various natural and technological processes, but excessive exposure to ionizing radiation can be harmful to human health.
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if the power of sound at the source outlet is 100 w, what is its intensity at 4 m away from the source?
Answers
The intensity of sound is inversely proportional to the square of the distance from the source. The intensity of sound at 4 m away from the source is approximately \(0.993W/m^{2}\) (watts per square meter).
The intensity of sound is defined as the power per unit area. According to the inverse square law for sound propagation, the intensity of sound is inversely proportional to the square of the distance from the source. Mathematically, it can be expressed as
\(I=P/(4\pi r^{2})\)
where I is the intensity, P is the power, and r is the distance from the source.
Given that the power of sound at the source outlet is 100 W and the distance from the source is 4 m, we can substitute these values into the formula. Thus, we have
\(I = 100 W / (4\pi (4 m)^2)\)
Simplifying this expression, we find that the intensity of sound at 4 m away from the source is approximately \(0.993W/m^{2}\) (watts per square meter).
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Consider states with angular momentum quantum number l = 2. in units of ħ, what is the value of l?
Answers
With angular momentum quantum number l = 2. in units of ħ, the value of l will be 2.4494 h.
What is the angular momentum quantum number?The total angular momentum quantum number in quantum mechanics parametrizes the total angular momentum of a particular particle by combining its orbital angular momentum and intrinsic angular momentum.
Given the angular momentum quantum number l = 2. in units of ħ. Therefore, the value of L can be written as,
L = √[l (l + 1)]
L = √[2 (2 + 1)]
L = √[2 (3)]
L = √6
L = 2.4494 h
Hence, With angular momentum quantum number l = 2. in units of ħ, the value of l will be 2.4494 h.
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Un autobús viaja en una carretera a una velocidad de 70 km/h y acelera durante 30 segundos hasta llegar a su límite de velocidad, que son 95 km/h. ¿Cuál fue su aceleración?
Answers
Answer:
a = 30 km / h²
Explanation:
Dado que
Velocidad inicial, u = 70 km / h
Velocidad final, v = 95 km / h
Tiempo, t = 30 s = 0.1 h
Lo sabemos
v = u + a t
a = aceleración
Ahora poniendo los valores en la ecuación anterior
\(95 = 70 + a \ times 0.1 \)
\(a = \ dfrac {95-70} {0.1} = 30 \ km / h ^ 2 \)
Por lo tanto, la aceleración será
a = 30 km / h²
An element that has 10 protons, 9 electrons, and 11 neutrons. What is the net/ionic charge of this atom?
A) -2
B) -1
C) +1
D) +2
Answers
Answer: (C) +1
Explanation:
Neutrons have no charge, so we can ignore them in this problem. Protons have a 1+ charge, and electrons have a 1- charge. So, the total charge is 10(+1) + 9(-1) = +1.
As you grow and learn, your neurons continue to connect, making you better at the
things you do.
False
True
Answers
True. When you learn something new neurons make connections and retain that knowledge. That means the more you learn a skill the more connections you make and the more muscle memory you get from doing that skill. Thus you get better at that skill.
Answer:
true
Explanation:
difference between magnetic energy and chemical energy
Answers
Each magnetic field contains energy, also called magnetic energy. ... Because a magnetic field is generated by electric currents, the magnetic energy is an energy form of moving charge carriers (electrons). To understand where this energy comes from, it's worth taking a look at how a magnetic field works.
Chemical energy, Energy stored in the bonds of chemical compounds. Chemical energy may be released during a chemical reaction, often in the form of heat; such reactions are called exothermic. ... The chemical energy in food is converted by the body into mechanical energy and heat.
True or False: (2 points) If a scientist finds evidence that contradicts a hypothesis, law, or principle, then it is their choice whether to change the hypothesis, law, or principle.
Answers
Answer:
True
Explanation:
A hypothesis is an educated guess, it does not have to be right.
Calculate the weight of the body of mass 500 g. (Take g =10 m / s 2)
Answers
W=mg ———-> 10x0.5=5 N
A doctor takes an x-ray of your body this is an example of conduction, convection, radiation?
Answers
Answer:
RadiationExplanation:
An x-ray emits radiation to see through the outer part of your body.
Hope this helps! <3
An X-ray is a type of radiation which is a type of electromagnetic radiation in the electromagnetic spectrum.
What is electromagnetic spectrum?
The electromagnetic spectrum consists of electromagnetic radiation consists of waves made up of electromagnetic field which are capable of propogating through space and carry the radiant electromagnetic energy.
The radiation are composed of electromagnetic waves which are synchronized oscillations of electric and magnetic fields . They are created due to change which is periodic in electric as well as magnetic fields.
In vacuum ,all the electromagnetic waves travel at the same speed that is with the speed of air.There are 7 types of electromagnetic radiation in the electromagnetic spectrum.Gamma rays have the highest energy while radio waves have least energy.
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What will happen to an object that is moving forward if a force pushing it backward is greater than the force pushing it forward?
Group of answer choices
A)The object will move at constant speed for a while and then slow down and stop.
B)The object will slow down, stop, and then begin to move faster and faster in the opposite direction.
C)The object will slow down, stop, and then begin to move at a constant speed in the opposite direction.
D)The object will slow down for a while and then move at a slower constant speed.
i need this answer very badly
Answers
Answer:
\ c,. ,;
Explanation:
What is the efficiency of a light bulb if it produces 30j of light energy, with an input of 120j of electrical energy?
Answers
The efficiency of this light bulb is 25% .
How do you calculate the efficiency of a light bulb?Utilizing the following formula, efficiency may be represented as a ratio: output input. The total quantity of beneficial work accomplished, excluding waste and spoilage, is known as output or work output. Efficiency may also be expressed as a percentage by dividing the ratio by 100.To represent the result as a percentage, divide the output by the input and then multiply by 100. Although both work and energy are measured in terms of the Joule, the calculator above has a space for a different unit. Make sure the energy and labour units are equivalent.Efficiency is essentially a measurement of the amount of labour or energy that may be saved throughout a process. In other words, it's similar to comparing the energy intake and output in any particular system.Given data :
output = 30j
Input = 120j
Efficiency = output / input x 100
= 30 / 120 x 100
= 25%
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Symptoms of excessive stress include all of the following EXCEPT:
Answers
Answer:
Symptoms of excessive stress include all of the following EXCEPT: increased energy level.
What is the difference between rotation and revolution in relation to the Earth. How long does each take on Earth?
Answers
Answer:
rotation is a day and revolution is 365 days
. If someone throws a ball up on a bus moving at 15m/s and someone throws a ball up on
a stationary bus, which ball will come back down first?
a. The ball on the moving bus
b. The ball on the stationary bus
c. They will come back down at the same time
d. Not enough information
TIL
100 of 30m and a vertical distance of
Answers
Answer:
answer is going to be C
Explanation:
because no matter if the bus is moving or not moving nothing is changing the ball so there for it is C
Blue jeans (blank) blue light, so that we see them as the color blue.
Answers
Answer:
Blue Jeans (are) blue light,
so that we see them as the color
helpp meee pleeaseeeeee
Answers
Answer:
not sure tho
Explanation:
The transfer of heat by radiation involves the carrying of energy from an origin to the space surrounding it. The energy is carried by electromagnetic waves and does not involve the movement or the interaction of matter.
Recognize and name the types of roots given below:
a) Are they looking similar to the normal roots?
b) What peculiarity do you observe in these roots?
c) How do these roots benefitted to the plants and the soil?
Answers
B,they are powerful plants they can eat another plants food
C ,they can eat very sunlight and water doesn’t any plants like it
Complete the missing information for each of the following.
Calculate the energy, height, and velocity at each of the following
points for the 1.5 kg weighted basketball.
(at the top) PE=29.4J KE= h=
(at the halfway point) PE= KE= v= h=
(on the floor) PE= KE= v=
Answers
Answer:
3.141592653 im king of NYC
Explanation: