After oxygen has been administered, the next priority intervention the nurse would initiate for a patient with a pulmonary embolus is the administration of IV Heparin.
What is Heparin?Heparin is a prescription medicine used to treat and prevent symptoms of blood clots caused by medical conditions or medical procedures. Heparin may be used alone or with the other medications. Heparin belongs to a class of drugs called the Anticoagulants, Cardiovascular, Anticoagulants, Hematologic.
What are the side effects of Heparin?Heparin may cause serious side effects including:
skin warmth or discoloration,
chest pain,
irregular heartbeats,
shortness of breath,
dizziness,
anxiety,
sweating,
unusual bleeding or bruising,
severe pain or swelling in your stomach, lower back/growing
dark or blue-colored skin on your hands/feet,
nausea,
vomiting,
loss of appetite,
unusual tiredness,
bleeding that will not stop,
nosebleed,
blood in the urine or stool,
black or tarry stools,
coughing up blood or vomit that looks like the coffee grounds,
skin changes where the medication was injected,
fever,
chills,
runny nose,
watery eyes,
easy bruising,
purple or red spots under your skin,
sudden numbness or weakness,
problems with vision or speech, and
swelling or redness in an arm or leg
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If your bathroom scale assesses your weight to be 98, 211, and 167 pounds on successive measurements in the same day, the scale would suffer from low _____ reliability.
The scale that would suffer from low Test-Retest reliability when the bathroom scale assesses on measurements in the same day.
How is reliability determined ?Producing a large number of evaluation-focused questions and randomly dividing them into two sets of questions is the most popular method for gauging the dependability of parallel forms. You determine the correlation between the findings after the same respondents respond to both sets of questions.
A measure's reliability is its constancy. Internal consistency, consistency among things, and consistency across different researchers are the three types of consistency that psychologists take into account (inter-rater reliability).
Because it affects the worth of a psychological test or study, reliability is crucial. Its dependability assures value to the psychology field and other fields where it has importance, such as business or education, if test findings are consistent when researchers undertake a study.
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The amount of downward force exerted by an object under the pull of gravity is its?
The correct answer for the amount of downward force exerted by an object under the pull of gravity is its Weight.
Weight is a restraining force. The magnitude of weight is denoted by the symbol w. Galileo was instrumental in demonstrating that, in the absence of air resistance, all objects fall with the same acceleration g. Normal force is defined as the force exerted on an object by a surface. When an object is at rest, its net force is equal to zero; thus, the downward force (weight) must equal the upward force (normal force). Because weight acts downward, it will be negative. It is determined by the object's mass and the acceleration due to gravity, which is 9.8 m/s2 on Earth. The weight formula is F = m 9.8 m/s2, where F is the object's weight in Newtons (N) and m is the mass in kg .
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Write a solutions to the problem of finding the largest number out of three numbers
The largest number within three numbers is 42393 .
Solution,
First of all we have to take three numbers such as,
a: 29320 b: 41332 c: 42393
Enter three numbers: a: 29320 b: 41332 c: 42393
42393 is the biggest of all three numbers.
Taking algorithm of the above steps .
Algorithm:
Take the three numbers as input and store them in variables.Check the first number if it is greater than other two.Repeat the step 2 for other two numbers.Print the number which is greater among all and exit.To know more about Algorithm
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An earthquake always begins:________
a) at the moho.
b) a focus.
c) the base of the earth's crust.
d) the top of the earth's mantle.
An earthquake always begins at the moho.
What is an Earthquake?The surface of the Earth shakes violently during an earthquake. Movements in the topmost layer of Earth are what are causing the shaking.
How Come Earthquakes Occur?Although the Earth appears to be a rather stable planet from the surface, it is actually very active beneath the surface. A solid crust, a heated, almost solid mantle, a liquid outer core, and a solid inner core make up the Earth's four basic layers.
Therefore option (a) An earthquake always begins at the moho.
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The Moho is the line in the earth's crust and mantle that separates them. An earthquake still starts at the moho. When two chunks of the ground abruptly slide past one another, an earthquake results.
What is an earthquake?When two chunks of the ground abruptly slide past one another, an earthquake results. The fault or fault plane is the area where they slide. Although the tectonic plates are constantly moving slowly, friction causes them to become impermeable at their borders. An earthquake occurs when the stress on the edge exceeds the friction, releasing energy in waves that flow through the earth's crust and produce the shaking we experience.The surface of the Earth shakes violently during an earthquake. The Earth's outermost layer is moving, which is what is causing the shaking. The term "earthquake" is used to represent both a sudden slide on a fault and the resulting ground shaking and transmitted seismic energy, as well as sudden changes in the earth's tension due to volcanic or magmatic activity or other causes. Sudden movement along Earth's fault lines causes earthquakes. The motion releases "elastic strain" energy that has been accumulated in the form of seismic waves, which travel through the Earth and cause the earth to tremble. Any sudden shaking of the ground brought on by seismic waves passing through the planet's rocks is referred to as an earthquake.To learn more about earthquake, refer to:
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Which period of the mesozoic era had the lowest temperatures & co2 levels, and had large tropical forests that lacked flowering trees (but later formed extensive coal deposits)?
The Mesozoic era's Jurassic epoch featured the lowest CO2 concentrations and temperatures, as well as vast tropical forests devoid of flowering trees.
The correct option is B.
What features did the Jurassic Period have?Dinosaurs thrived for 180 million years during the Jurassic Period, which was their heyday. Huge herbivorous and carnivorous sauropods like the 35-foot-long Allosaurus and the 87-foot-long Diplodocus evolved. Imagine yourself sprinting as quickly as you can, and that's how big these beasts were.
What led to the Jurassic Period's demise?Some have proposed that the Triassic-Jurassic extinction may have been brought on by an asteroid or comet impact, similar to an extraterrestrial object that is thought to have contributed significantly to the Cretaceous-Paleogene extinction about 66 million years ago as shown by the Chicxulub crater in Mexico.
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Which period of the Mesozoic era had the lowest temperatures and CO2 levels, and had large tropical forests that lacked flowering trees (but later formed extensive coal deposits)?
a. Triassic
b. Jurassic
c. cretaceous
Which of these talents is an HR employee MOST likely to need?
A.
the ability to envision retirement
B.
an interest in how unions work
C.
the ability to work independently
D.
an interest in helping people
HELP PLEASE
Hypothermia is an excessive decline in a body temperature.
true/ false
It's True that Hypothermia is an excessive decline in a body temperature.
What is Hypothermia?Hypothermia is condition that occurs when the body’s temperature drops below 95° F (35° C).The normal body temperature is 98.6° F (37° C). Hypothermia is medical emergency.
When a person’s body temperature is dangerously low, the brain and the body cannot function properly. Left untreated, hypothermia can lead to the cardiac arrest (heart stops beating) and death.
What are the treatments of Hypothermia?The first steps when treating hypothermia are:
Move to warm, dry location. Remove the wet clothing and replace with the dry clothing. Cover up with the jacket, hat, and blanket
When hypothermia is the more severe, doctors may also need to:
Insert IV into your vein and pump warm fluids into your body. Give you warm oxygen through a mask or a breathing tube. Use machine that warms your blood and pumps it back into your body
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The imidazole side chain of histidine has a pka of 6.04. illustrate the predominant structures for histidine at (i) ph 4, (ii) ph 8, and (iii) ph 12. indicate stereochemistry at the ca.
The histidine imidazole side chain has a pka of 6.04. To illustrate the predominant structures for histidine at (i) ph 4, (ii) ph 8, and (iii) ph 12, we have the pictures attached below. The first one indicates structure at ph 4, second one indicates ph 8 and third indicates ph 12.
What is stereochemistry?The study of stereochemistry is focused on stereoisomers, which by definition have the same molecular formula and sequence of bonded atoms (constitution) but differ in the three-dimensional orientations of their atoms in space.
Stereochemistry is a subfield of chemistry that deals with the relative spatial arrangement of atoms that form the structure of molecules and their manipulation. Because the prefix “stereo- “denotes “three-dimensionality,” it is also referred to as “3D chemistry.”
One crucial area of stereochemistry is the study of chiral molecules. Stereochemistry covers the entire range of organic, inorganic, biological, physical, and particularly supramolecular chemistry.
The study of stereochemistry involves techniques for identifying and describing these interactions, as well as the impact these relationships have on the physical or biological characteristics of the molecules in question.
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What is the mass of 2000 ml of an intravenous glucose solution with a density of 1.15 g/ml?
According to the following formula, the answer is 2,300 g or 2.3 kg:
Volume (m)/Mass (m) Equals Density (p) (V)
Here, the density is 1.15 g/mL, allowing the formula described above to result in a mass of 2.00 L:
p=m/V
1.15 g/mL is equal to x g/2.00 L or x g/2,000 mL.
2,000 mL of x g = 1.15 g of g/mL
2.3 kg or 2,300 g for x g.
How many grams of glucose are in a 1000ml bag of glucose 5?Its active ingredient is glucose. This medication includes 50 g of glucose per 1000 ml (equivalent to 55 g glucose monohydrate). 50 mg of glucose is present in 1 ml (equivalent to 55 mg glucose monohydrate). A transparent, nearly colourless solution of glucose in water is what is used in glucose intravenous infusion (BP) at 5% weight-to-volume.
Patients who are dehydrated or who have low blood sugar levels get glucose intravenously. Other medications may be diluted with glucose intravenous infusion before being injected into the body. Other diseases and disorders not covered above may also be treated with it.
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How much would a 15.0kg object weigh on neptune if the acceleration due to gravity is 11.2?
On Neptune, the object weight is 168 newton.
We need to know about the weight to solve this problem. Weight can be measured by multiplying mass with gravitational acceleration. It can be written as
W = m . g
where W is weight, m is mass and g is the gravitational acceleration.
From the question above, we know that the parameter given is:
m = 15 kg
g = 11.2 m/s²
By substituting the parameters, we can calculate the weight.
W = m . g
W = 15 x 11.2
W = 168 N
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What is the importance of physical education for you as a student
Answer:
It improves mental clarity allowing you to think better
it allows you to take a break from studying and provides a healthy destressor
Alleviates feelings of stress
Explanation:
The analysts at techno infosystems are considering the four-model approach to system development for a new client. if they make use of the four-model approach, which is a likely outcome?
The analysts at techno infosystems are considering the four-model approach to system development for a new client. if they make use of the four-model approach, the outcome will be the time taken to develop the model increases.
With a commitment to giving Government PSUs, Educational Institutions, and All Organizations across the country a competitive advantage by making current operations efficient & cost-effective, Techno is a brand name of Richa Infosystems Limited, which is working under the government's initiative to support "Vocal for Local."
The speed of techno, a kind of electronic dance music, frequently ranges between 120 and 150 beats per minute and is typically generated for usage in a continuous DJ set. Common time is usually used for the core rhythm, which is frequently distinguished by a repeating four on the floor beat.
Electronic dance music without vocals or a typical popular song structure, with a quick pace and artificial noises.
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A reverse-biased silicon diode is connected in series with a 12 v source and a resistor. the voltage across the resistor is:__________
A 12 v source, a resistor, and a silicon diode that has been reverse-biased are all linked in series. The diode will use 0.7 volts of the voltage across the resistor, leaving 11.3 for the rest of the circuit's components.
What is the purpose of a resistor?The amount of electrical current that can flow through a circuit in an electronic device is controlled or limited by a resistor. Resistors can be used to deliver a certain voltage to an electronic element like a transistor.
Which various kinds of resistors are there?Resistors with a fixed value. These resistor configurations are the most common and, as their name implies, have a set resistance value.Adjustable resistors.Resistance Networks.Resistors made of carbon film.Resistors made of metal film.Wire wound resistorsResistor made of metal oxide.Strip metal resistorsTo know more about Resistors visit:
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ice ages have occurred at several times during earth's history. what is an ice age, and how does an ice age affect the land surface and the oceans?
I have to get it done right now.. it is due today
You watch two otters cross a river of width d with water flowing at vw. Otter 1 swims across the river perpendicularly to the shore (but ends up actually swimming diagonally from the reference frame of a person standing on the shore because the river flows in a direction perpendicular to the direction the otter swims). Otter 2 swims in a direction that takes her directly across the river, on a path that is actually perpendicular to the shore as seen from a person standing on the shore. Each otter swims at vo relative to the water and they take the paths described above. How much longer does the Otter 2 take to cross the river? To answer this, derive an expression for the ratio of the time taken by the Otter 2 to cross the river divided by the time taken by the Otter 1 to cross the river. Get the ratio in terms of vo and vw and select the correct answer.
The fur of a sea otter is the densest of any animal, having the most hairs per square inch of any other species. Even while floating in the water, their thick fur keeps the animal warm and dry.
Sea otters decrease heat loss when the water is too cold by floating on their backs with their feet out of the water. To increase their surface area when trying to dissipate heat, sea otters spread their feet out underwater. Sea otters typically spread out or tuck their feet up to maintain body heat. The amount of food available to sea otters would decrease if prey species in their environment declined as a result of changing temperatures.
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Does a negatively charged particle released at rest move towards higher or lower electric potential?.
A negatively charged particle released at rest will move towards regions of high potential in this context.
What is Electron potential?This is defined as the amount of work energy which is required to move a unit charge from one point to another in an electric field.
Negative charges which start from rest, accelerate from regions of low potential and move toward regions of high potential due to the strong Coulomb attraction.
On the other hand, positive charges starting from rest will accelerate from regions of high potential and move towards that of a low potential as a result of it having a weak coulomb attraction which makes it to easily get moved to a potential which has a weak strength.
This is therefore the reason why a higher potential was chosen as the most appropriate choice.
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How many metric tons (1 metricton = 103 kg) of water fell on the city? (1 cm3 of water has a mass of 1 gram = 10-3 kg
180,000 metirc tons of water fell on the city.
StepsSince we need to know if we are referring to the body of water on a city or, for example, only a swimming pool, the region must be pertinent. The former would undoubtedly be far greater.
It is possible to conceptualize the amount of water that falls on the city as having dimensions.
2km x9km x1cm
200 000 cm x 900 000 x 1cm
= 1.8x10^11 cm^3
since 1km =10^3m and 1m =100cm
1 gram equals 10-3 kg.
Rainfall weighs 10^-3 kg per 1 cm^3 of water, or 1 gram.
1.8x10^11 x 10^-3= 1.8x10^8
ie 1.8x10^8kg
1 metric ton = 10^3kg so the weight of rainfall in metric tons is
1.8x10^8 / 10^3 = 1.8x10^5
ie 180,000 metirc tons
180,000 metirc tons of water fell on the city.
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the question you are looking for is
A heavy rainstorm dumps 1.0 cm of rain on a city 2 km wide and 9 km long in a 2 hour period.How many metric tons (1 metric ton = 10^3 kg) of water fell on the city? [ 1 cm^3 of water has a mass of 1 gram = 10^3 kg.]
About how many days must elapse between first-quarter moon and the next full moon in the same cycle?
About 29.5 days must elapse between first-quarter moon and the next full moon in the same cycle.
What do you mean by the phases of the Moon?The different ways the Moon appears to Earth over the course of about a month are known as its phases. The side of the Moon that faces the Sun will be illuminated as it revolves around the Earth. The various forms of the illuminated region of the Moon that can be observed from Earth are referred to as their phases. Every 29.5 days, a new phase begins. Due to tidal locking, the same half of the Moon always faces the Earth. The same half of the Moon's surface will therefore always be covered by the phases.
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In 10 seconds a swimmer kicks off one the side of the pool to the other. as the swimmer makes their way across, they slow down at a constant rate until the come to a complete stop. if the width of the pool is 8.0 meters what was their initial velocity when they kicked off.
1.6 ms-1 was their initial velocity when they kicked off.
The velocity at time interval t = 0 is indicated by the symbol u. It is the speed at which the motion begins. Because the length of the pool is not given, the width is used to estimate the distance travelled;
Length of a swimming pool =8 m
A swimmer crosses it and then makes their way across
Total distance covered =8×2=16 m
Time taken =10 seconds
Initial velocity = distance/ time
=16/10
=1.6 ms-1
Therefore, the initial velocity is 1.6 ms-1. Note the question requested initial velocity since it is impossible to estimate the final velocity of the swimmer as he maintains a constant rate across the pool when swimming back.
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2. what is the unit of force in metric system? a. calorie b. joules c. newtons d. pounds
The unit of force in metric system is Newtons
A metric system is used for measuring things using units like mm, cm, m and km for length, g and kg for weight, s for time etc.
Newton can be defined as 1 kg m / [tex]s^{2}[/tex].
where,
kg = Kilogram
m = Meter
s = second
As we can clearly see all these units are part of metric system.
Therefore, the unit of force in metric system is Newtons
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If the volume of the cylinder is to be calculated, what would be the total standard deviation of the volume?
first calculate the partial derivatives of the two fromulas for each measured variable. Then you calculate the sum of the products of the errors (Dr, DR, and dh) with the squared corresponding partial derivative.and or the deviation
Example for the length of the mantle:
dm/dR = (R-r)/root(w)
dm/dr = -(R-r)/root(w)
dm/dh = h/root(w)
where w = (R-r)²+h². The squared derivatives are
(dm/dR)² = (R-r)²/w
When it comes to statistics and probability theory, standard deviation is used. It demonstrates the accuracy of your data and is used to measure both variability and diversity.
Standard deviation is calculated by taking the square root of the variance. In contrast to a high standard deviation, which indicates that the entered data points are most likely farther from the mean, a low standard deviation indicates that the entered data points are most likely closer to the mean
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Three objects are set in motion, a 4.4 kg object at 1.6 m/s, a 3.0 kg object at 3.0 m/s, and a 1.6 kg object at 4.4 m/s. which object has the most kinetic energy?
The third object has the most kinetic energy (15.49 joule).
We need to know about kinetic energy to solve this problem. kinetic energy can be defined as the energy of moving object. It can be determined by
KE = 1/2 . m . v²
where KE is kinetic energy, m is mass and v is speed of object.
From the question above, we know that:
m1 = 4.4 kg
m2 = 3.0 kg
m3 = 1.6 kg
v1 = 1.6 m/s
v2 = 3.0 m/s
v3 = 4.4 m/s
Find the kinetic energy
KE1 = 1/2 . m1 . v1²
KE1 = 1/2 . 4.4 . 1.6²
KE1 = 5.632 joule
KE2 = 1/2 . m2 . v2²
KE2 = 1/2 . 3. 3²
KE2 = 13.5 joule
KE3 = 1/2 . m3 . v3²
KE3 = 1/2 . 1.6 . 4.4²
KE3 = 15.49 joule
Hence, the third object has the most kinetic energy (15.49 joule).
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How lrge a force is necessary to stretch a 1.1 m diamter steel wire (y = 2.0 * 10^11 ) by 2.0 percent
The amount of force necessary to stretch a 1.1 m diameter steel wire is 13.82 * [tex]10^{9}[/tex] h N
Young's modulus Y = ( F /A ) / ε
where,
F = Force
A = Area
ε = Strain
Given that,
d = 1.1 m
Y = 2 * [tex]10^{11}[/tex] N [tex]m^{-2}[/tex]
A = 2 π r h = 2 * 3.14 * 0.55 * h
A = 3.454h [tex]m^{2}[/tex]
[tex]l_{2}[/tex] = 1.02 [tex]l_{1}[/tex]
Strain ε = ΔL / L = ( [tex]l_{2}[/tex] - [tex]l_{1}[/tex] ) / [tex]l_{1}[/tex] = ( 1.02 [tex]l_{1}[/tex] - [tex]l_{1}[/tex] ) / [tex]l_{1}[/tex]
ε = 0.02
Y = ( F /A ) / ε
F = 2 * [tex]10^{11}[/tex] * 0.02 * 3.454h
F = 13.82 * [tex]10^{9}[/tex] h N
Young's modulus is a property of material which is used to figure out how easily can a material can be stretched or deformed.
Therefore, the amount of force necessary to stretch a 1.1 m diameter steel wire is 13.82 * [tex]10^{9}[/tex] h N
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What would happen to the organisms if the ice was more dense?
Answer:
If solid ice were denser than water, it would sink. In the most extreme conditions, there would be no way to melt the ice in deep lakes and oceans, which would thicken from the bottom to the surface, forming permanently frozen bodies of ice and disrupting Earth's water cycle.
Explanation:
This ice layer insulates the water below it, allowing it to stay liquid, which allows the life within it to survive. If ice sank, the liquid water on top would also freeze and sink, until all the liquid water became frozen. Water is less dense as a solid, than as a liquid, which is why ice floats.
Find the vector v with the given magnitude and the same direction as u. magnitude direction v = 93 u = 0, 4, 4
Vector v is [tex]0,27\sqrt{2},27\sqrt{2}[/tex] for the given magnitude and the same direction as u, magnitude direction v = 93 u = 0, 4, 4.
What is a vector?Vector, in physics, a quantity that has both the magnitude and direction. It is typically represented by an arrow whose direction is same as that of the quantity and whose length is proportional to the quantity’s magnitude. Although vector has magnitude and direction, it does not have position. That is, as long as its length is not changed, vector is not altered if it is displaced parallel to itself.
In contrast to vectors, the ordinary quantities that have a magnitude but not a direction are called scalars. For example, displacement, velocity, and acceleration are vector quantities, while speed (magnitude of velocity), time, and mass are scalars.
To qualify as a vector, a quantity having the magnitude and direction must also obey certain rules of combination. One of these is the vector addition, written symbolically as A + B = C (vectors are conventionally written as boldface letters). Geometrically, vector sum can be visualized by placing the tail of vector B at the head of vector A and drawing vector C—starting from tail of A and ending at the head of B—so that it completes triangle. If A, B, and C are the vectors, it must be possible to perform the same operation and achieve the same result (C) in reverse order, B + A = C. Quantities such as the displacement and velocity have this property (commutative law), but there are quantities (e.g., finite rotations in the space) that do not and therefore are not vectors.
Given that,
|v|= 27 and u= 0,4,4
Now unit vector
u= [tex]\frac{u}{|v|}[/tex]=[tex]\frac{0,4,4}{|0,4,4|}[/tex]
=0,4,4/[tex]\sqrt{0^{2}+4^{2}+4^{2} }[/tex] = 0,4,4/ [tex]\sqrt{32}[/tex]
=0/[tex]4\sqrt{2}[/tex],4/[tex]4\sqrt{2}[/tex],4/[tex]4\sqrt{2}[/tex]
=1/[tex]\sqrt{2}[/tex],1/[tex]\sqrt{2}[/tex]
now the vector v in same direction as u means,
v= |v|.u= 27*([tex]0,1/\sqrt{2}, 1/\sqrt{2}[/tex])
Thus,
v= [tex](0,27/\sqrt{2},27/\sqrt{2})[/tex]
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Calculate the wavelength of a photon (in nm) emitted when an electron transitions from the n = 3 state to the n = 1 state in the hydrogen atom.
The wavelength of a photon (in nm) emitted when an electron transitions from the n = 3 state to the n = 1 state in the hydrogen atom is 103 nm
What is a Wavelength ?A waveform signal that is carried in space or down a wire has a wavelength, which is the separation between two identical places (adjacent crests) in the consecutive cycles.
There are two energy levels, n1 and n2.
Beginning with Rydberg's equation, write:
The Rydberg is useful for figuring out the wavelength of light emitted when an electron switches from one energy level of an atom to another, for as from higher to lower or lower to higher. When an electron moves from one orbital to another, the energy will change.
1/λ = R(1/n1^2 - 1/n2^2)
1/λ = 1.097 x 10^7 (1/1^2 - 1/3^2)
1/λ = 1.097 x 10^7(8/9)
1/λ = 9/8.776 x 10^7 = 103 x 10^-9 m = 103 nm
Hence, the wavelength of a photon is 103 nm
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True or false: in applying the pythagorean theorem to vector addition, the resultant vector is given by the perpendicular vector.
It is False in applying the pythagorean theorem to vector addition, the resultant vector is given by the perpendicular vector
What is Pythagoras theorem ?A useful technique for figuring out the outcome of adding two (and only two) vectors that form a right angle to one another is the Pythagorean theorem. The technique cannot be used to combine more than two vectors or to combine vectors that are not at a 90-degree angle.
The Pythagorean Theorem is named for Pythagoras of Samos, a religious figure and mathematician who held the view that everything in the cosmos is made up of numbers. (There are numerous ways to demonstrate this.) The side opposite the right angle is known as the hypotenuse in a right triangle.The Pythagorean Theorem demonstrates how the side lengths of a right triangle can be calculated from the sum of the areas of three intersecting squares. This theorem is a very helpful tool that serves as the foundation for more intricate trigonometry ideas like the Pythagorean theorem's opposite.Learn more about Pythagoras theorem here:
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What is the net force on a crate sliding at an unchanging speed when pushed with a steady force of 75 n?
The net force on a crate sliding at an unchanging speed when pushed with a steady force of 75 n is zero.
The total of all forces exerted on an object is known as the net force. A mass can accelerate due to net force. A body is subject to another force whether it is at rest or in motion. When there are a lot of forces acting on a system, the term "net force" is employed.
The total force acting on an object is its net force. Newton's second law, which states that F = ma, where F represents the net force, can be used to compute the net force. The object's mass is given by m. Acceleration is a.
The vector sum of all forces acting on an object is known as the net force. As a result of the fact that a force is a vector and that two forces with identical magnitudes and opposing directions cancel each other out, the net force is the sum of all the forces, or put another way, the net force is the sum of all the forces.
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Enter the chemical formula of a binary molecular compound of hydrogen and a group 7a element that can reasonably be expected to be less acidic in aqueous solution than hbr, e.g. have a smaller ka.
The chemical formula of a binary molecular compound of hydrogen and a group 7a element that can reasonably be expected to be less acidic in aqueous solution than HBr is HF
Group 7a that forms binary molecular compounds of Hydrogen are Halogens such as Iodine I, Bromine Br, Chlorine Cl and Fluorine F. Out of these four HF is the least acidic. This is calculated based on Acid dissociation constant. HF has the least value out of these four, so it is the least acidic.
A binary molecular compound is a compound that consists of two non metals elements only.
Therefore, the chemical formula of a binary molecular compound of hydrogen and a group 7a element that can reasonably be expected to be less acidic in aqueous solution than HBr is HF.
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At what temperature will 1.30 mole of an ideal gas in a 1.30 l container exert a pressure of 1.05 atm?
The temperature of the ideal gas is 12.76 K.
We need to know about the ideal gas theory to solve this problem. The ideal gas is assumed that there is no interaction between particles in a gas. It can be determined by the equation
P . V = n . R . T
where P is pressure, V is volume, n is the number of moles gas, R is the ideal gas constant (8.31 J/mol.K) and T is temperature.
From the question above, we know that
n = 1.3 mol
V = 1.30 l = 1.3 x 10¯³ m³
P = 1.05 atm = 1.05 x 1.01 x 10⁵ Pa = 106050 Pa
By substituting the following parameters, we can calculate the temperature
P . V = n . R . T
106050 . 1.3 x 10¯³ = 1.3 . 8.31 . T
T = 137.865 / 10.803
T = 12.76 K
Hence, the temperature of the gas is 12.76 K.
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