What are some of the similar features of position vs time and velocity vs time
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Related Questions
Resolve the weight of the box to find the component of the weight acting parallel to the slope.
W = 50N
30
Answers
Answer:
here's your answer below
Explanation:
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An element of atomic number 88 decays radioactively to an element of atomic number 82.
Part A
Which of the following emissions achieve this result?
Check all that apply.
a.) one alpha particle and one beta-minus particle
b.) three alpha particles
c.) one alpha particle
d.) six beta-minus particles
An element of atomic number 82 and mass number 214 decays radioactively to an element of atomic number 82 and mass number 210.
Part B
Which of the following emissions achieve this result?
Check all that apply.
a.) four beta-minus particles
b.) two beta-minus particles and one alpha particle
c.) two alpha particles
d.) one alpha particle
Answers
An element of atomic number 88 decays radioactively to an element of atomic number 82. The emissions that achieve this result is one alpha particle. The correct option is D. The emission that achieves this result is one alpha particle. The correct option is C.
To determine the emissions that achieve the radioactive decay from an element with atomic number 88 to an element with atomic number 82, we need to consider the changes in atomic number and mass number during the decay process.
In a radioactive decay, the atomic number decreases by the emission of a particle, and the mass number decreases by a specific amount as well.
Atomic number of initial element = 88
Atomic number of final element = 82
From this information, we can conclude that the decay process involves the emission of an alpha particle.
The emission of an alpha particle corresponds to the emission of a helium nucleus, which consists of two protons and two neutrons. This emission reduces the atomic number by 2 and the mass number by 4.
Therefore, the emission that achieves this result is C, one alpha particle.
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A 1.94 kg object on a frictionless horizontal track is attached to the end of a horizontal spring whose force constant is 4.75 N/m. The object is displaced 5.94 m to the right from its equilibrium position and then released, which initiates simple harmonic motion. What is the magnitude of the force acting on the object 3.63 s after it is released
Answers
The magnitude of the force acting on the object is `44.3N`.
Simple harmonic motion (SHM) equation:
`F = -kx`.
The minus sign indicates that the force is in the opposite direction to the displacement x of the mass.
The force acting on the object `3.63s` after it is released is given by the expression:
`F = -kxsinωt`
where
`x` is the displacement,
`k` is the force constant,
`ω` is the angular frequency of the SHM.
Since we know that the object is displaced `5.94m` to the right from its equilibrium position, we can use this information to find `x`.
Here,
`x = 5.94m`.
`k` = `4.75N/m`.
Next, we need to find the angular frequency `ω` of the SHM.
`ω = √(k/m)`
where
`m` is the mass of the object.
Here, `m = 1.94kg`.
Therefore,
ω = √(4.75 N/m / 1.94 kg)
= 1.406 rad/s
Now that we have the displacement `x` and angular frequency `ω`, we can substitute these values into the expression for `F` to get the force at time `t = 3.63s`
.F = -kxsinωt
= - (4.75 N/m) (5.94 m) sin(1.406 rad/s × 3.63 s)
≈ -44.3 N
Thus, the magnitude of the force acting on the object `3.63s` after it is released is `44.3N`.
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How do the number of stars in the milky way compare to the number of galaxies in the universe?.
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Multiplying the number of stars in a milky way by the number of galaxies in the universe is how the number of stars in a milky way is compared to the number of galaxies in the universe.
Using the Milky Way model, the number of stars is multiplied in a typical galaxy which is 100 billion by the number of galaxies existing in the universe which is 2 trillion in number. The answer calculated will be absolutely an astounding number. Therefore, there are approximately 200 billion trillion stars existing in the universe.
A hundred billion galaxies exist in the Universe. A galaxy is usually full of stars. Our sun is also a star that just exists as one of at least a hundred billion stars to be present in our own Milky Way galaxy.
To estimate the number of stars in a typical galaxy and it is then multiplied by the number of galaxies estimated in the universe. In general, some galaxies shine visible better or some in an infrared condition which can be taken as an example. There also are estimation hurdles that must be overcome.
Multiplying the number of stars in a milky way by that of galaxies in the universe is how the number of stars in a milky way was compared to the number of galaxies in the universe.
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The lever which makes our work easier only by accelerating the rate of work is:
Answers
Answer:
power
Explanation:
it helps to do work without power we cant do any things
The work in a 3rd lever is situated between the load and the pivot. Less effort is required to shift the weight if the pivot is near to it. The weight will travel a longer distance if the pivot is closer to the effort.
What is the mechanical advantage?Mechanical advantage is defined as a measure of the ratio of output force to input force in a system, It is used to analyze the forces in simple machines like levers and pulleys.
Mechanical advantage = output force(load) /input force (effort)
mechanical advantage = velocity ratio ×Efficiency
A lever that swings around a fixed point is the basic component of a lever. The pivot of a lever is its fixed point. A lever, like other machines, facilitates labor by adjusting the force or the length across which the force is applied to the device.
Thus, we can say that the lever which makes our work easier only by accelerating the rate of work is
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A 0.40 kg mass hangs on a spring with a spring constant of 12 N/m. The system oscillated with a constant amplitude of 12 cm. What is the maximum acceleration of the system
Answers
Answer:
The maximum acceleration of the system is 359.970 centimeters per square second.
Explanation:
The motion of the mass-spring system is represented by the following formula:
\(x(t) = A\cdot \cos (\omega \cdot t + \phi)\)
Where:
\(x(t)\) - Position of the mass with respect to the equilibrium position, measured in centimeters.
\(A\) - Amplitude of the mass-spring system, measured in centimeters.
\(\omega\) - Angular frequency, measured in radians per second.
\(t\) - Time, measured in seconds.
\(\phi\) - Phase, measured in radians.
The acceleration experimented by the mass is obtained by deriving the position equation twice:
\(a (t) = -\omega^{2}\cdot A \cdot \cos (\omega\cdot t + \phi)\)
Where the maximum acceleration of the system is represented by \(\omega^{2}\cdot A\).
The natural frequency of the mass-spring system is:
\(\omega = \sqrt{\frac{k}{m} }\)
Where:
\(k\) - Spring constant, measured in newtons per meter.
\(m\) - Mass, measured in kilograms.
If \(k = 12\,\frac{N}{m}\) and \(m = 0.40\,kg\), the natural frequency is:
\(\omega = \sqrt{\frac{12\,\frac{N}{m} }{0.40\,kg} }\)
\(\omega \approx 5.477\,\frac{rad}{s}\)
Lastly, the maximum acceleration of the system is:
\(a_{max} = \left(5.477\,\frac{rad}{s})^{2}\cdot (12\,cm)\)
\(a_{max} = 359.970\,\frac{cm}{s^{2}}\)
The maximum acceleration of the system is 359.970 centimeters per square second.
which of the following is not evidence supporting the giant impact theory for the formation of the moon?which of the following is not evidence supporting the giant impact theory for the formation of the moon?we see signatures of giant impacts on other planetsputer simulations show that the moon could really have formed in this way.scientists have found several meteorites that appear to be the remains of the object that caused the giant impact.the moon is depleted of easily vaporized materials, as we would expect from the heat of an impact.the composition of the moon is similar to that of earth's outer layers.
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The evidence that is not supporting the giant impact theory for the formation of the moon is that we see signatures of giant impacts on other planets. The correct option is A.
This evidence actually supports the theory, as it suggests that giant impacts are a common occurrence in the formation of planets and moons. The other pieces of evidence all support the giant impact theory.
Computer simulations show that the moon could really have formed in this way, scientists have found several meteorites that appear to be the remains of the object that caused the giant impact, the moon is depleted of easily vaporized materials,
As we would expect from the heat of an impact, and the composition of the moon is similar to that of Earth's outer layers.
All of these pieces of evidence suggest that a giant impact was the most likely cause of the moon's formation.
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Assume all temperatures to be exact.
The single glass pane in a window has dimensions of 1.80 m by 1.30 m and is 3.20 mm thick.
How much heat will flow through the glass in 1.50 h if there is a temperature difference of 7 ∘C between the inner and outer surfaces? (Consider conduction only.)
Express answer in J.
Answers
The heat flow through the glass in 1.50 h is 20512.5 J, assuming conduction only.
What is the heat flow through the glass?The amount of heat flow through a material is given by the formula: Q = kAΔTt/d, where Q is the heat flow, k is the thermal conductivity, A is the area, ΔT is the temperature difference, t is the time, and d is the thickness.
In this case, the thermal conductivity of glass is about 0.8 W/(m∙K), the area is 1.80 m × 1.30 m = 2.34 m², the temperature difference is 7 °C, the time is 1.50 h, and the thickness is 3.20 mm = 0.0032 m.
Substituting these values into the formula, we get:
Q = (0.8 W/(m∙K)) × (2.34 m²) × (7 °C) × (1.50 h) / (0.0032 m)
Q = 20512.5 J
Therefore, the heat flow through the glass in 1.50 h is 20512.5 J.
To summarize, the amount of heat flowing through a glass pane can be calculated using the formula Q = kAΔTt/d, where k is the thermal conductivity, A is the area, ΔT is the temperature difference, t is the time, and d is the thickness. In this case, the heat flow through the glass in 1.50 h is 20512.5 J, assuming conduction only.
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A sportscar has a mass of 1500 kg and accelerates at 5 meters per second squared. What is the magnitude of the force acting on the sportscar?
Answers
Answer:
7500 Newtons
Explanation:
Mass of the sportscar= 1500 kg
Acceleration of the sportscar= 5m/s^2
Hence, let the Force acting on it be F
\(We\ know\ that,\\Force=Mass*Acceleration\\F=ma\\\\Here,\\F=1500*5\\=7500 kg m/s^2\ or\ 7500\ Newtons\)
Gwen Goldfish, a speed swimmer, loves to race around the park’s pond, which is 1 kilometer around. If she can swim 20 laps around the track in 2 hours, what is her average speed?
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The average speed of swimmer is 10 km/hr.
Speed is the rate of change of position of an object in any direction.
Distance is the total movement of an object without any regard to direction.
Given distance of pond is 1 km.
She swims 20 laps , i.e. total distance = 20 * 1 km = 20 km
Time taken to complete = 2 hr
There a relation between speed distance and time which is given by:
Speed = Distance / Time
⇒Speed = 20/2 = 10 km/hr
So the average speed of swimmer is 10 km/hr.
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jan propped up a graham cracker in a shallow bowl she then set up an electric fan to blow on the graham cracker at three different speeds what is jans dependent variable in this experiment?
Answers
The speed of the electric fan graham cracker.
Briefing :Changes in the dependent variable are influenced by an independent variable. You could therefore say that it is a random variable. Because it is unaffected by the dependent variable, it is called INDEPENDENT.
In this instance, the graham cracker has no impact on the electric fan's speed, whereas the electric fan's speed DOES have an impact on the graham cracker.
What is the benefit of electric fan?Fans can assist in moving the cool air from your air conditioner. Although it is preferable to use and run fans in an active room, there are some advantages to doing so in stuffy stairwells and hallways. Fans placed at the top or bottom of the stairs, down the hallway, or in a room will increase airflow and temperature.
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Name some minerals used as gems.
Answers
Answer:
Minerals to Gemstones
Mineral Name Gemstone Name
Beryl Aquamarine, Beryl, Bixbite, Emerald, Goshenite, Heliodore, Morganite
Brazilianite Brazilianite
Chalcedony Agate, Aventurine, Bloodstone, Carnelian, Chrysoprase, Heliotrope, Jasper, Onyx, Sard
Chrysoberyl Alexandrite, Chrysoberyl
1. If a wagon has a mass of 8 kg and it is accelerating
at 0.5 m/s2, what is the force pulling the wagon?
Answers
Answer:
The force is equal to the mass times acceleration:
F = m•a
F = 8•0.5
F = 4 N
what is the average acceleration of a car that is initially at rest at a stop light and then accelerates to 24 m/s in 9.4 s?
Answers
Answer:
Below
Explanation:
To find the acceleration of the car you can use this formula :
vf = vi + at OR a = v/t
I'm going to use the first one because it explains the steps more clearly :
vf = 24 m/s
vi = 0 m/s
t = 9.4 s
a = ?
24m/s = 0 + (a)(9.4s)
24m/s = a9.4
Divide both sides by 9.4
a = 2.55319 m/s^2
Round to 3 sig figs
a = 2.6 m/s^2
Hope this helps! Best of luck <3
At what velocity will a 300.W motor pull a mass if it applies a force of 13.9N?
4170m/s
286m/s
21.6m/s
0.0463m/s
Answers
To answer this question, we need to use the formula that relates force, mass, and acceleration: F=ma. We can rearrange this formula to solve for acceleration: a=F/m.
In this case, we are given that the force applied by the motor is 13.9N, and we need to find the velocity at which it will pull a mass. We are not given the mass directly, but we can calculate it using the power of the motor (300W) and the velocity we are trying to find.
Power is defined as the rate at which work is done, or P=W/t, where W is the work done and t is the time it takes to do that work. In this case, we can assume that the work done is moving the mass a certain distance, and we can use the velocity to calculate the time it takes to do that work. So, we have:
P=Fv
where P=300W, F=13.9N, and v is the velocity we want to find. Rearranging this equation gives:
v=P/F
Now we can substitute in the values for P and F to get:
v=300/13.9
v≈21.6 m/s
So, at a velocity of 21.6 m/s, a 300.W motor applying a force of 13.9N can pull a mass.
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The capacitance of a Pt-n-type GaAs Schottky diode is given by 1 (C(μF))2 = 1.0 × 105 − 2.0 × 105 V The diode area is 0.1 cm2. Calculate the built-in voltage Vbi, the barrier height, and the doping concentration
Answers
Answer:
built in potential Vbi = +0.5V
barrier height = 0.139 V
doping concentration = 5.39 × 10²³cm³
Explanation:
Select the correct answer.
Which hand is negatively charged?
A.
Image of right-hand palm with mathematical sign
B.
Image of right-hand palm with mathematical sign
C.
Image of right-hand palm with mathematical sign
D.
Answers
In the image of the right-hand palm with a mathematical sign, the sign is negative. By convention, electric charge is assigned a sign based on the type of charge: negative charges are assigned a "- " sign, and positive charges are assigned a "+ " sign. Therefore, the hand in image B is negatively charged.
A car drives off a cliff at 30 m/s. The car lands 100 meters
from the base of the cliff. How tall is the cliff?
Answers
Answer:
Height of the cliff, H = 54.66 m
Explanation:
Given that,
Speed of the car, u = 30 m/s
The car lands 100 m from the base of the cliff.
We need to find the height of the cliff.
First we will find the time time needed for the car to reach the bottom of the cliff. It can be calculated as :
\(t=\dfrac{h}{v}\\\\t=\dfrac{100}{30}\\\\t=3.34\ s\)
Let H is the height of the cliff. Using second equation of motion as follows
\(H=v_yt+\dfrac{1}{2}gt^2\\\\H=\dfrac{1}{2}gt^2\\\\H=\dfrac{1}{2}\times 9.8\times (3.34)^2\\\\H=54.66\ m\)
So, the cliff is 54.66 m tall.
A student adds two vectors with magnitudes of 200 and 40. Which one of the following is the only possible choice for the magnitude of the resultant? a. all of the above are possible b. 40 c. 200 d. 100 e. 260
Answers
The magnitude of the resultant can be calculated as follows: Resultant = sqrt(200^2 + 40^2) = 204.8
The magnitude of the resultant of two vectors is determined by the vector addition. When two vectors are added, their magnitudes can add up, subtract, or cancel out depending on their directions. In this case, the magnitudes of the vectors are 200 and 40, respectively. The only way to obtain the magnitude of the resultant is by using the Pythagorean theorem, which states that the magnitude of the resultant is the square root of the sum of the squares of the magnitudes of the two vectors.
Therefore, the magnitude of the resultant can be calculated as follows:
Resultant = sqrt(200^2 + 40^2) = 204.8
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Match the following vocabulary terms with their correct definition.
Respiratory System 1. Made up of your heart.
Cardiorespiratory Endurance 2. Used to describe good cardiorespiratory function.
Maximal Oxygen Uptake 3. Bad Cholesterol
LDL 4. The ability to exercise your entire body for a long period of time without stopping.
Cardiovascular System 5. Carries blood filled with waste products from the muscle cells back to the heart.
Cholesterol 6. Made up of your lungs.
Artery 7. Carries blood from your heart to another part of your body
Vein 8. Good Cholesterol
Aerobic Capacity 9. The best assessment to measure the fitness of the cardiovascular and respiratory systems.
HDL 10. A waxy, fat like substance found in meat, dairy, and egg yolks.
Answers
The correct matching of the terms is as follows:
Cardiovascular SystemMaximal Oxygen Uptake LDLCardiorespiratory EnduranceVein Respiratory SystemArteryHDLAerobic CapacityCholesterolWhat is the correct matching of the given terms?The correct matching to the given terms depends on the definition of the terms.
The correct matching of the terms is as follows:
Cardiovascular System - Made up of your heart.Maximal Oxygen Uptake - Used to describe good cardiorespiratory function.LDL - Bad CholesterolCardiorespiratory Endurance - The ability to exercise your entire body for a long period of time without stopping.Vein - Carries blood filled with waste products from the muscle cells back to the heart.Respiratory System - Made up of your lungs.Artery - Carries blood from your heart to another part of your bodyHDL - Good CholesterolAerobic Capacity - The best assessment to measure the fitness of the cardiovascular and respiratory systems.Cholesterol - A waxy, fat like substance found in meat, dairy, and egg yolks.In conclusion, respiratory function is measured by means of aerobic capacity.
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The Cockroach is an amazing bug that can compass itself into half of its normal height.
A. True
B. False
Answers
Una carga de 4 uC penetra perpendicularmente en un campo magnetico de 0.4 T con una velocidad de 7.5x10 4 m/s. Calcular la fuerza que recibe la carga
Answers
Answer:
F_B = 0.12N
Explanation:
In order to calculate the magnetic force on the charge, you use the following formula:
\(\vec{F_B}=q\vec{v}\ X\ \vec{B}\) (1)
q: charge of the particle = 4μC = 4*10^-6 C
v: speed of the charge = 7.5*10^4 m/s
B: magnitude of the magnetic field = 0.4T
The direction of the motion of the charge is perpendicular to the direction of the magnetic field. Then, the magnitude of the magnetic force is:
\(F_B=qvBsin90\°\\\\F_B=(4*10^{-6}C)(7.5*10^4 m/s)(0.4T)=0.12N\)
The magnetic force on the charge is 0.12N
what force is driving the orbits positioning of the planets around the sun
Answers
Answer:
he found that a single forece known as gravity keeps the planets in their orbits around the sun gravity force that keeps planets in their orbits calculus a branch of mathmatics partially developed by Newton and used to explain his laws
Explanation:
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4. A car accelerating at 60 meters/second is hit in an accident by a bus. The net force exerted on
the car is 30000 Newtons. What is the car's mass?
Answers
Answer:
500kg
Explanation:
mass = newtons/force divided by the acceleration rate
m = 30,000/60
m = 500
1. Write the goal of the lab or the question you tried to answer.
Answer:
Type your answer here.
Lab report density and buoyancy
Answers
The goal of the lab is to investigate the relationship between density and buoyancy. The lab aims to determine how different objects or substances behave in fluids and understand the principles of density and buoyancy through experimental observations and calculations.
The goal of the lab or the question being addressed in the lab report is to investigate and understand the concepts of density and buoyancy. Density refers to the measure of how much mass is contained within a given volume, while buoyancy refers to the upward force exerted on an object submerged in a fluid, such as water or air.
The lab report aims to explore the relationship between density, mass, and volume by conducting experiments and analyzing data. It may involve measurements of different objects or substances, determining their masses and volumes, and calculating their densities. The report may also involve experiments related to buoyancy, such as determining the buoyant force on an object and investigating factors affecting buoyancy.
By conducting the lab and analyzing the obtained results, the lab report aims to provide a deeper understanding of these fundamental concepts in physics and to demonstrate the principles of density and buoyancy through practical experimentation. The report may also include discussions of the significance and applications of density and buoyancy in various fields, such as engineering, architecture, and fluid dynamics.
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The following statements that correctly describe the modulus of elasticity, E:
Answers
The modulus of elasticity, E, is a measure of a material's stiffness and ability to resist deformation when a force is applied. It is defined as the ratio of stress to strain within the elastic range of the material. In other words, it describes how much a material will stretch or compress under a given force.
The modulus of elasticity is important because it allows engineers to predict how materials will behave under different conditions, such as temperature changes, loading conditions, and other factors. It also helps to determine the maximum load a material can withstand before it starts to deform or break.
In detail, the modulus of elasticity is a fundamental property of a material that describes its ability to resist deformation when subjected to external forces. It is calculated by measuring the stress and strain of the material and using the equation E = σ/ε, where σ is stress and ε is strain.
The modulus of elasticity is important in many areas of engineering, such as structural design, materials science, and mechanics. It helps to ensure that structures and materials are designed and tested to withstand the loads and stresses they will be subjected to, and it provides a basis for comparing different materials and choosing the best one for a particular application.
In summary, the modulus of elasticity, E, is a material property that describes its stiffness and resistance to deformation. It is correctly determined using Hooke's Law and is crucial for predicting the mechanical behavior of materials when subjected to stress.
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For the circuit shown in the figure, the current in the 8 resistor is 0.50 A, and all quantities are accurate to 2 significant figures. What is the current in the 2 resistor?
Answers
The current through the 2Ω resistor is 9.5A
The terminal voltage is 10.8 V
How to calculatea) The voltage V across 8 Ω resistor is V = I*R = 8*0.5 = 4V
the current through 16Ω resistor is then I = V/R = 4/16 = 0.25 A
the current through 20Ω resistor is then I = current through 8Ω resistor + current through 16Ω resistor = 0.75 A
voltage across 20Ω is V = I*R = 0.75*20 = 15 V
the source voltage is Vs = V8 + V20 = 4+15 = 19 V
therefore the current through 2Ω resistor is
I = V/R = 19/2 = 9.5 A
b) The terminal voltage is
Vterminal = VR = I*R = 0.450*24 = 10.8 V
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The equation (x+6)^2+(y+4)^=36. 36 models the position and range of the source of a radio signal. describe the position of the source and the range of signals
Answers
Position: (-6, -4) Range: 6 units
What is the position and range of the source of the radio signal represented by the equation (x+6)^2 + (y+4)^2 = 36?The equation (x+6)^2 + (y+4)^2 = 36 represents a circle in the Cartesian coordinate system. The center of the circle is at the point (-6, -4), which indicates the position of the source of the radio signal.
The range of the signals can be determined by the radius of the circle, which is the square root of 36, equal to 6. This means that the radio signals from the source can reach any point on the circle with a radius of 6 units centered at (-6, -4).
In summary, the position of the source of the radio signal is at (-6, -4), and the range of the signals extends to a distance of 6 units from the source.
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at constant t and p, 2.0 l of nitrogen gas are combined with 6.0 l of hydrogen gas to form ammonia. which of the following statements correctly describe the outcome of the reaction, assuming it goes to completion? select all that apply. multiple select question. when the reaction is completed, n2, h2, and nh3 are present. when the reaction is completed, only nh3 is present. n2 combines with h2 in a 1:3 ratio. there is an excess of n2 in this reaction. the product occupies a volume of 4.0 l under these conditions.
Answers
Only NH3 remains after the reaction is finished. A 4.0 L volume is occupied by the product under these circumstances. N2 and H2 mix at a 1:3 ratio.
What is the straightforward meaning of volume?The volume occupied within an object's borders in three dimensions is referred to as its volume. It is sometimes referred to as the object's capacity. Three distinct methods will be used to determine volumes in order to demonstrate how precision affects data: motion of water in geometry.
What does water volume mean?Water has a size of one cubic centimeter per milliliter (1 mL) (1cm3). The dimensions and weights of certain atoms differ. The atomic mass in an atom's nucleus determines the sequence in which certain atoms appear on the periodic table.
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abunai hana has heard that she can obtain the most distance by shooting a crossbow bolt at a 45 degree angle above the positive x axis. her crossbow can shoot bolts at 30m/s. draw the vector triangle and decompose the vector into its x and y components.
Answers
vcos45 and vsin45 are the vector into its x and y components.
Vx=vcos45=15.75 m/s
Vy=vsin45=25.5 m/s
A vector is a quantity in physics that has both magnitude and direction. It is frequently depicted as an arrow with a length proportionate to the magnitude and a direction matching the magnitude of the quantity. While a vector has magnitude and direction, it lacks position. In other words, a vector's length won't change if it is shifted parallel to itself.
Even though a quantity has magnitude and direction, it must meet certain requirements in order to be classified as a vector. One of them is the vector addition formula, represented by the symbols A + B = C.
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