Answer: burning less fossil fuel
Explanation: I did the quick check and it was right :)
Two hydrogen atoms collide head on. The collision brings both atoms to a halt. Immediately after the collision, both atoms emit a 121.6 nm photon. What was the speed of each atom just before the collision?
Both atom emit a photon with a wavelength of 121.6 nm right after colliding. Atomic speed is defined as v = 44.2 * 103 m/s.
What does "speed" mean in physics?The rate at which site of an object shifts in any axis. Speed is described as the ratio of the distance covered to the time required to cover that length.
How do you locate examples of speed?That really is speed Equals distance time. Alternatively, you can calculate the time by dividing the distance traveled by the speed. You can figure out the third input if you know one of the inputs. For instance, if a car drives 120 miles in 2 hours, we may calculate the speed as 120 x 2 = 60 kilometers per hour.
Briefing:wavelength λ=121.6nm.
Energy, K=E
1/2mv*v = hc/λ
V² = hc/2λ
v²= 2(6.62*10⁻³⁴)(3*10⁸)/ (1.67*10⁻²⁷) (121.6*10⁻⁹)
v = 44.2 * 10³m/s
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a commuter backs her car out of her garage with an acceleration of . (a) how long does it take her to reach a speed of 2.00 m/s? (b) if she then brakes to a stop in 0.800 s, what is her deceleration?
a. 1.43 s long does it take her to reach a speed of 2.00 m/s.
b. −1.79m/s² is her deceleration.
Calculation :
a. We are given the initial velocity, u=0 m/s, the acceleration, a=1.4 m/s² and the final velocity, v=2.00 m/s. Therefore, we shall calculate the time taken to reach such a final velocity by applying the following equation of kinematics,
v=u+at [1]
=at
∴t=v/a [Dividing both sides by the acceleration]
=[tex]\frac{2.00 m/s}{1.4 m/s^{2} }[/tex]
=1.42857 s
≈1.43 s
It takes her 1.43 s to reach a speed of 2.00 m/s.
b. From above, the initial velocity is now, u1=1.43 m/s and the final velocity, v1=0 m/s. Thus, the deceleration, a, is calculated using the same equation [1] as follows,
v=u+at
0=u+at
∴a=−ut=[tex]\frac{-1.43 m/s}{ 0.800 s}[/tex]
= −1.7875 m/s²
≈−1.79 m/s²
Therefore, the deceleration of the car is
1.79 m/s²
In mechanics, acceleration is the rate of change of an object's velocity with respect to time. Acceleration is a vector quantity (as long as it has magnitude and direction). The direction of an object's acceleration is given by the direction of the net force acting on that object. As described in Newton's second law, the magnitude of an object's acceleration is the combined effect of two sources.
The mass of this object is inversely proportional to the mass of the object, depending on the material from which it is made.
The SI unit of acceleration is meters per square second
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a certain type o f elementary particle travels at a speed of 2.60x10^8 m/s at this speed the average lifetime is measured to be 4.76x10^-6s. what is the particle's lifetime at rest?
The particle's lifetime distance at rest is 1.2376 m.
Here, the particle's lifetime refers to the the distance in speed formula
Speed is the measure of average distance in a given time. It is the vector quantity.
The distance can be calculated by the product of speed and the time given.
Here, in this question, the total distance a certain elementary particle has traveled in its lifetime.
This can be determined by merely multiplying the speed with the lifetime of years.
Given,
Speed = 2.6×10⁸ m/s
Time = 4.76×10⁻⁶ s
Speed = distance / time
Distance = speed * time
Total distance = (2.6×10⁸ m/s)*(4.76×10⁻⁶ s)
Total distance = 1.2376 meters
Therefore, the distance travelled by the particle with the speed of 2.6×10⁸ m/s in the lifetime is 1.2376 m
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an object is dropped from rest at the top of a 400 m cliff on earth. if air resistance is negligible, what is the distance the object travels during the first 6 s of the fall? group of answer choices 180 m 30 m 60 m 360 m 120 m
The object travelled 176.4 meters in the first 6 seconds of its descent. = 176.4 m. Therefore, the object's travel distance is 176.4 meters.
Explain about the distance?Distance, which is a scalar quantity, describes "how much ground an object has covered" while moving. The term "how far out of place an object is" relates to displacement, a vector number that describes the total change in position of the object.
If the scale is expressed verbally, such as "1 inch = 1 mile," then you can calculate the distance by simply measuring it with a ruler. If the scale, for instance, reads 1 inch Equals 1 mile, then the actual distance between two places on the ground is that amount of miles.
Knowing an object's distance allows us to determine its actual size. We can gauge how much space an object occupies in the sky.
= 0 +1/2 (9.8) x 6²
=1/2 x 352.8
= 176.4
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A great strength of correlational research is the O cause-effect sequencing of events. O ambiguity of the results. O ability to extract the influence of confounded variables. f
O act that it occurs in real-world settings.
A great strength of correlational research is the -fact that it occurs in real-world settings.
What is correlational research?Correlational research is a form of non-experimental research methodology that employs statistical analysis to investigate the link between two variables. The impacts of unrelated factors on the variables under inquiry are not investigated by correlational research designs.
Characteristics-
1.Non-experiment: It implies that in order to support or refute a theory, researchers do not necessarily need to modify variables using a scientific technique.
2.Backward-looking: Correlational research solely considers historical information and keeps track of past events. It is measured and used by researchers to identify historical patterns between two variables.
3.Dynamic: Correlational research's patterns between two variables are never static and are constantly evolving. Due to numerous causes, two variables with a history of negative correlation studies may eventually show a positive correlation relationship.
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A student is designing a setup where a magnetic field will induce an electric current. Which of the following must they include in their apparatus?
A stationary magnet
An open circuit
An ammeter
A battery
Answer:
D
Explanation:
A battery must they include in their apparatus.
What is Battery?
A battery's positive terminal functions as the cathode and its negative terminal as the anode while it is supplying electricity. The source of the electrons that will move from the terminal labeled "negative" to the terminal labeled "positive" is an external electric circuit.
Redox reactions transform high-energy reactants into lower-energy products when a battery is coupled to an external electric load, and the free-energy difference is sent to the external circuit as electrical energy.
In the past, a device made of numerous cells was specifically referred to as a "battery," but today, devices made of a single cell are also included in this definition.
Therefore, A battery must they include in their apparatus.
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Identify whether each item would increase or decrease stroke volume. Increase Stroke Volume Decrease Stroke Volume Sympathetic stimulation Increasing EDV Increasing afterload Increasing contractility Increasing preload Increased heart rate Stress Increasing contractility Dehydration Dehydration Decreased venous Teturn Sympathetic stimulation Increasing EDV Stress Acute exercise Increasing afterload Increased heart rate, Acute exercise Decreased venous retum Increasing preload Reset
Increasing contractility Dehydration Dehydration Decreased venous Teturn Sympathetic stimulation Increasing EDV Stress Acute exercise Increasing afterload Increased heart rate.
In which case hypertension increased?Hypertension increases afterload causing stroke volume to decrease. Hypertension refers to high or increased blood pressure. The afterload refers to the arterial pressure into which the stroke volume is ejected by the heart.
This is due to the fact that the aortic valve can not open unless the pressure generated in the left ventricle is higher compared to the elevated blood pressure in the aorta.
Therefore, Increasing contractility Dehydration Dehydration Decreased venous Teturn Sympathetic stimulation Increasing EDV Stress Acute exercise Increasing afterload Increased heart rate.
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Which of the following explains the relationship between wavelength and frequency of light?a. The longer the wavelength, the higher the frequency.b. The shorter the wavelength, the lower the frequency.c. The wavelength and frequency are not related to each other.d. The longer the wavelength, the lower the frequency.
Answer:
(d) the longer wavelength the lower the frequency:
V = λ * f
For a given velocity - λ and f are inversely related
two blocks are connected by an ideal string that runs through a hole in a table. the first block (a) has a mass of 2.0kg and is moving in a circle of radius 0.75m on a frictionless table. the second block (b) has a mass of 5.0kg and is hanging under the table, attached to the string that is connected to block a. what tangential velocity (in m/s) must block a have so that block b remains at the same height under the table?
The tangential haste(velocity) of the block m1 on the amicable(frictionless) table is1.34 m/s.
The given parameters;
mass of the first block, m1 = 2 kg
mass of the alternate block, m2 = 5 kg
distance of block m1, R = 0.75 m
The net torque on both blocks is calculated as
T( net) = Iα
T2R2- T1R1 = Iα
where;
T ₁ is the (tension)pressure on first block
I is the moment of inertia of point mass
α is the angular acceleration
T1 = m1g m1a
T2 = m2g m2a
The acceleration of both blocks is calculated as follows
R( T2- T1) = MR ² x( a/ R)
R( T2- T1) = MRa
(T2- T1) = M*a
g( m2- m1) = a( M m1 m2)
Where,
M is the mass of string = 0
g( m2- m1) = a( m1 m2)
a = 1.88 m/ s ²
The speed of the block m1 is calculated as follows;
a = v ²/ r
v = ar
v = 1.88 *0.75
v = 1.34 m/ s
Therefore, the tangential velocity of the block m1 on the frictionless table is 1.34 m/s.
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when you view a distant rainbow, you view from each single water drop that contributes to the bow
When you look at a distant rainbow, you see "a single color" from every individual water drop that makes up the bow.
Explain the phenomenon of rainbow?The combination of sunlight and atmospheric factors produces a rainbow.
As light passes from air into denser water in a water droplet, it slows down and bends. Inside the droplet, the light reflects off and splits into its individual wavelengths, or colors. The rainbow is created as light leaves the droplet.A rainbow isn't actually a "thing," and it doesn't have a specific "place" where it exists. It's an optical phenomenon which only manifests when the sun, the atmosphere, and the viewer's position are precisely correct.Water vapor must be suspended in the atmosphere for a rainbow to form. We observe them as a result just after it rains. The rainbow can only be seen when the Sun is in the background and the clouds have cleared away from the Sun.Thus, when you look at a distant rainbow, you see "a single color" from every individual water drop that makes up the bow.
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a hemispherical bowl of radius 2m is filled with water to within 1m of the top. find the volume of water in the bowl.
The volume of water in the bowl is 33.51 L.
What is a hemisphere formula?Hemisphere volume is equal to 2 r/3, where r is the hemisphere's radius. Let's see how the volume of a hemisphere is calculated. A hemisphere is half of a sphere, thus we can calculate its volume by dividing the sphere's volume by two. Now take into account that r is a sphere's radius.A hollow hemisphere with inner and outer radii of r1 and r2, respectively, has a total surface area of 2 (r22 + r12) + (r22 - r12) square units.A hemisphere is a geometric form with a flat face that is a circle and a surface area that is curved. A hemisphere has one edge and no vertices. It is not a polyhedron since it is not composed of polygons.Given data :
radius = 2
Volume of a hemisphere = 2 /3 x π x [tex]r^{3}[/tex]
= 2 / 3 x π x [tex]2^{3}[/tex]
= 33.51 L
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Write true or false:
1 Cellular respiration takes place in all the cells of living organisms.
2 All living organisms respire to get energy from food.
3 Our muscle cells do anaerobic respiration only when there is temporary deficiency of oxygen.
4. Breathing involves the movement of the diaphragm and the rib cage.
5 The percentage of carbon dioxide is higher in inhaled air in comparison to exhaled air.
6 We often feel hungry after a physical exercise.
7 Increased physical activity reduces the rate of breathing.
light incident normally on a thin film of glycerine which coats a thick glass plate, refractive index 1.55. in the resulting reflections, completely constructive interference is observed at 440.0 nm and completely destructive interference is seen at 352.0 nm. take the refractive index of glycerine as 1.31, calculate the thickness of the film.
The refractive index of glycerine as 1.31 and the thickness of the film is 0.808 μm
Light incident normally on a thick glass plate covered in a thin layer of glycerine with a refractive index of 1.55
Δθ=2Πn₂t/λ + Π-Π
Δθ=4Πn₂t/λ
For constructive interference
refractive index of glycerine is 1.31
Δθ=2mΠ
2mΠ=4Πn₂t/λ1
t=mλ1/2n2=970m/2*1.2
For destructive interference
ΔΘ=(2m+1)Π
4Πn₂t/λ₂=(2m+1)Π
t=(2m+1)λ2/4n₂
2*2.4/970+1=4*1.2/776t
0.001237t=1
t=808.33 nm
Thickness is =0.808 μm
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you add equal amounts of heat to two identical cylinders containing equal amounts of the same ideal gas. cylinder a is allowed to expand, while cylinder b is not. Part A How do the temperature changes of the two cylinders compare?
The temperature rise the second cylinder B is 5/3 times the temperature in the cylinder A.
Explain the ideal gas equation?PV = nRT is the equation for an ideal gas. In this equation, P stands for the ideal gas's pressure, V for the ideal gas' volume, n for the total amount of the ideal gas expressed in moles,R for the universal gas constant, and T for temperature.The heat source for both cylinders was:
ΔQ₁ = ΔQ₂ .....eq 1
Gas will expand in a cylinder with a free piston so that the pressure is always constant.
P = constant
Then,
ΔQ₁ = n.Cp.ΔT
ΔQ₁ = n.Cp.T₀ .....eq 2
With Fixed piston for cylinder (constant volume process),
V = constant
ΔQ₁ = n.Cv.ΔT .....eq 3
From eq 1
n.Cp.T₀ = n.Cv.ΔT
ΔT = (Cp/Cv) . T₀
ΔT = γ T₀
For the monatomic gas (γ = 5/3)
ΔT = 5/3 T₀
Thus, the temperature rise the second cylinder B is 5/3 times the temperature in the cylinder A.
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consider a young globular star cluster where all the cluster stars formed at about the same time. if you were to observe this star cluster over several billion years, you would see
Over the course of many billion years, if you were to monitor this star cluster, you would initially see a lot of supernovae, then none.
Describe a supernovae.The enormous stellar explosion known as a supernova. Supernovae come in a variety of forms, according to scientists. In the final phase of the lives of huge stars which are least eight times bigger than our Sun, one form of supernova known as a "core-collapse" supernova occurs.
What two types of supernovae are there?Supernovae may be split into two major types, Type I and Class Ii, depending to the way wherein they detonate. In addition to being up to three times lighter than Type II supernovae, Type I supernovae are distinct than Iii supernovae in that its spectra lack hydrogen lines.
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5. how far from the center of the earth would a child with a weight of 300n on earth have to be for her weight to be 45n? use the radius of the earth as 6.371 x 106m. g
The child should be at a distance of [tex]13.8 * 10^{6} m[/tex] from center of earth.
We know that gravity at height h is given by , [tex]g = \frac{GM}{(r+h)^{2} }[/tex]
where, G = gravitational constant = [tex]6.67 * 10^{-11}[/tex]
M = mass of earth = [tex]5.98 * 10^{24} kg\\[/tex]
r = radius of earth = [tex]6.371 * 10^{6} m[/tex]
let g = [tex]9.8 m/s^{2}[/tex]
h = distance from center of earth
The value of g is inverse to the height above the earth’s surface; therefore, it decreases with increasing height.
Putting these values in above equation we get, h = [tex]13.8 * 10^{6} m[/tex]
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if n1 = n2 and n is relatively large, then the t test is relatively robust against ____.
If n1 = n2 and n is relatively large, then the t test is relatively robust against violations of the assumptions of homogeneity of variance and normality. (Option A)
A t-test refers to an inferential statistic which is used to determine if there is a significant difference between the means of two groups and how they are related. According to the studies, t tests are remarkably robust to violations of a number of assumptions providing that the two sample sizes are equal or nearly equal and the assumed underlying population distributions are of the same or nearly same shape. T-test are found to be robust against deviation from normality and unequal variance. The test is in doubt only when there can be serious outliers, when sample sizes are small, and distributions are far from normal.
Note: The question is incomplete as it is missing options which are A) violations of the assumptions of homogeneity of variance and normality B) violations of random samples C). traffic violations D) violations by the forces of evil.
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when a weight w is hanging from a light vertical string, the speed of pulses on the string is v. if a second weight w is added without stretching the string, the speed of pulses on this string will now become. true or false?
It is false to say that speed of pulse remains v after adding the second weight w on the vertical string.
We know very well that speed of transverse wave v in a string is given by:
v=√T / √μ
where,
T represents the tension in the string
μ represents the linear mass density defined for the string
Now, in the given situation,
when weight is hanging on light vertical string is W, speed of the wave v is :
v=√W / √μ ----(eq1)
On addition of an additional weight of W, speed of the wave becomes v ' as :
v′ = √2W /√μ -----(eq2)
After comparing eq1 and eq2, we observe that
after addition of same amount of weight in the given light string, speed will increase by √2 times the previous speed.
Hence, the given statement is false.
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what is the impedance of a series lrc circuit with a resistance of 18 ohms, an inductance of .03 h and a capacitance of 1 mf driven at an angular frequency of 120 rad/sec
The impedance of a series lrc circuit with a resistance of 18 ohms,The impedance is 27.88Ω.
Calculation:-
The impedance is given by,
[tex]Z = \sqrt{R^{2}+(wL -\frac{1}{wC})^{2} }[/tex]
The angular frequency can be written as,
W= 27[tex]\pi[/tex] w = 2[tex]\pi[/tex] (120) = 753.98rad/s
We can calculate the impedance as,
= Z = √(18)² + ((753.98)(0.03) - 1/(753.98)(1 x 10⁻³)² = 27.88Ω.
Impedance is the overall resistance of a circuit to current or a measure of how well it impedes the flow of charge. This is similar to resistance but also takes into account capacitance and inductance. An ohm is a unit of measurement for impedance. Impedance and resistance are similar concepts.
Both describe how a component resists or resists the flow of current. Resistance is the measurement of voltage divided by the resistance of the resistor. Impedance is a generalized concept of voltage divided by current in each component.
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Can someone help with this
d. Just before it is released, the box has twice as much elastic potential energy as before
When a spring is compressed, it stores potential energy in the form of elastic potential energy. The amount of elastic potential energy stored in the spring is given by the formula:
E = 1/2 * k * x^2
where E is the elastic potential energy, k is the force constant of the spring, and x is the distance the spring is compressed.
Therefore, if we compress the spring at a distance of 2x instead of x, the elastic potential energy stored in the spring will be twice as much. This means that just before the box is released, it has twice as much elastic potential energy as before.
what are the currents in the inductor, in resistor r1, and in resistor r2 immediately after the switch is closed?
The current in both the resistors that is r1 and r2 will be zero after the switch is closed.
What is a resistor ?The capacitance and inductance can have undesirable effects in high frequency circuits, such as in radio electronics. The majority of foil resistors have a low parasitic reactance, but wirewound resistors are among the worst. The resistor's electrical noise level needs to be as low as feasible for precise applications like audio amplifiers.
Since it cannot change instantly, the current through the inductor is zero when the switch is first closed.
This indicates that the inductor behaves like an open circuit and that all of the voltage is applied across it.
The magnetic field gets stronger as the current ramps up from zero.
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Which of the following is the correct relationship of wavelength and frequency of EM waves?
a) λ = c / r
b) λ = c / f
c) λ = c / h
d) λ = h*c / f
Answer:
c=f⋅λ (The speed of light is directly proportional to f and λ).
Explanation:
which of the following descriptions corresponds to the sclera? a.) it is made of dense tissue to help protect the eye. b.) it is the part of the eye that focuses incoming light. c.) it is a substance that maintains the eye's pressure and transmits light. d.) it is located behind the lens and helps the eye maintain its shape.
The correct descriptions corresponds to the sclera is It is made of dense tissue to help protect the eye.
Hence, Option A is correct.
The sclera serves as the eyeball's supporting wall. It keeps your eyeball in shape and protects it from injury. Conjunctiva, which are clear mucus membranes that lubricate (moisturize) your eye, cover the sclera. The sclera's muscles help move your eyeball up and down and side to side.High levels of melanin, the natural skin pigment that gives skin, hair, and the iris of your eyes a darker color, can cause harmless spots outside of the iris and within the sclera.To know more about Sclera here
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in what range of masses are most stars found? in what range of masses are most stars found? 0.1 to 2 solar masses stars can have any mass. 0.1 to 100 solar masses 0.01 to 100 solar masses 1 to 3 solar masses
From 0.08 to 150 (or more) fold the mass of the Sun, stars' masses fall within this range.
What factors affect a star's life span?The mass of a star affects its life cycle. Its life cycle is shorter the greater its bulk. The amount of available stuff in a star's nebula, the enormous cloud of gas and dust in which it was born, determines the star's mass.
Which stars have the most time left in them?The majority of the galaxy's stars are red dwarf stars, but they are too faint to be seen from Earth with the human eye and remain hidden in the background. Their lifespans, which are much longer than that of the sun, are prolonged by their limited brilliance.
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a racecar is traveling at a speed of 80.0 m/s on a circular racetrack of radius 450 m. what is its centripetal acceleration in m/s2?
The centripetal acceleration of the race car is 14.22m/s².
centripetal acceleration, the acceleration of a body traversing a circular path. Since velocity is a vector quantity (that is, it has magnitude, speed, and direction), when a body moves along a circular path, its direction is constantly changing, and thus its speed also changes and acceleration occurs. The acceleration is directed radially towards the center of the circle. The centripetal acceleration ac has a magnitude equal to the square of the velocity v of the body along the curve divided by the distance r from the center of the circle to the moving body; that is, ac = v²/r. Centripetal acceleration has units of meter per second squared.
v=80m/s
r=450m
a=80²/450=14.22m/s²
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he scale of a spring balance that reads from 0 to 15.0 kg is 12.0 cm long. a package suspended from the balance is found to oscillate vertically with a frequency of 2.00 hz. (a) what is the spring constant? (b) how much does the package weigh?
The weight of the package is mg=76.0N. In the formula , F = -kx, proportional constant k is called the spring constant.
What is spring constant?A measure of the stiffness of the spring is known as spring constant . When a spring is stretched or compressed, then its length changes by an amount x from its equilibrium length. And then, it exerts a force F = -kx in a direction towards the equilibrium position.
a) Using Hooke’s law, we can find out:
k=(15kg)(9.8m/s 2 )/(0.12m)=1225N/m.
=1.23kN/m.
b) Given, f=2.00Hz=2.00cycles/sec
Now, ω=2π(2.00)=4πrad/s
As we know that , ω= √k/m
=1225/ (4πrad/s)²
=7.76 kg
Therefore, the weight of the package is mg=76.0N.
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(a) a laser emits light that has a frequency of 4.69 * 1014 s - 1. what is the energy of one photon of this radiation? (b) if the laser emits a pulse containing 5.0 * 1017 photons of this radiation, what is the total energy of that pulse?
A light pulse is a flash. Lasers and related devices have amazing potential for generating light pulses with very specific properties. There are various techniques for using lasers to generate nanosecond, picosecond and even femtosecond pulses.
Light energy is a form of kinetic energy that has the ability to make some kind of light visible to the human eye. Light is defined as a form of electromagnetic radiation emitted by hot objects such as lasers, incandescent bulbs, and the sun. Light contains photons, which are tiny packets of energy.
(a) Energy of photon = planck' constant x fequency
=6.6x10^-34 x4.69 x10^14 J
(b) Energy of 5.0x10^17 photons = 6.6x10^-34 x 4.69x10^14 x5.0x10^17
The energy of a single photon is: hν or = (h/2π)ω where h is Planck's constant: 6.626 x 10-34 Joule seconds. Photons in visible light contain about 10-19 Joules per second in the beam.
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open stax an air conditioner uses of energy from work to transfer by heat from a room in a house. a second air conditioner uses of energy from work and transfers by heat. what is the difference in their efficiencies?
Every air conditioner has a preset temperature. If used continously, the temperature goes down the reset temperature and breaks down.
And then it would pump the heat out and a lot of energy would be released
How to describe efficiency of air conditioner?When the air conditioner is mounted inside a room, it only transfers heat within the room. The air conditioner does not change the form of the heat; it only absorbs the heat from inside the room and ejects it outside the room.
According to the second law of thermodynamics, in a closed system, the heat is increasing or remains constant. It never decreases.
So as the air conditioner cools the room, it has to pump the heat out from inside the room.
Every air conditioner has a preset temperature. If used continously, the temperature goes down the reset temperature and breaks down.
And then it would pump the heat out and a lot of energy would be released
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a 4.20-m-long, 580 kg steel beam extends horizontally from the point where it has been bolted to the framework of a new building under construction. a 75.0 kg construction worker stands at the far end of the beam. what is the magnitude of the torque about the point where the beam is bolted into place?
The tension exerted on the bolt by the worker and the weight of the beam is 15023.4 Nm in size.
The parameters are as follows: length of steel, L = 4.20m; mass of steel, m = 580 kg; and mass of work, m = 75.0 kg.
The following formula is used to determine how much torque the worker's weight and the weight of the beam will exert on the bolt;
the beam's center of gravity [tex]\frac{4.20}{2} = 2.1 m[/tex]
[tex]T_{t}=T_{1}+T_{1}[/tex]
[tex]T_{t}=F_{1}.r_{1}+F_{2}.r_{2}[/tex]
[tex]T_{t}=(580*9.8*2.1)+(75.0*9.8*4.20)[/tex]
[tex]T_{t}=15023.4 Nm[/tex]
This results in a torque of 15023.4 Nm being applied on the bolt by the worker and the weight of the beam.
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A maximum strength skeletal muscle contraction can be sustained indefinitely.2 ptsTrueFalse
Answer:
Explanation:
false
