The amine contains an odd number of N atom because the mass spectrum of an amine shows a parent peak with an odd mass for the molecular ion.
The m/z ratios of the ions contained in a sample displayed against their intensities form a mass spectrum. The mass spectra of amines are dominated by alpha-cleavage, which results in an alkyl radical on a resonance stabilized nitrogen containing cation.
Each peak in a mass spectrum shows a component of unique m/z in the sample, and heights of the peaks denote the relative abundance of the various components in the sample. Multiple alpha-cleavages are possible for secondary and tertiary amines.
Therefore, the amine contains an odd number of N atom because the mass spectrum of an amine shows a parent peak with an odd mass for the molecular ion.
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The standard deviation of a sample was reported to be 30. the report indicated that deviation squared ( ) is equal to 7200. what has been the sample size?
The sample size of the standard deviation of a sample that was reported to be 30 is calculated as 8.
What is Sample size determination?The process of deciding how many observations or replicates to include in a statistical sample is known as sample size determination.
Any empirical study with the aim of drawing conclusions about a population from a sample must take into account the sample size as a crucial component.
CalculationStandard deviation = square root of ∑(x-average)^2 / N = 30
∑(x-average)^2 = 7200
Putting the values in standard deviation formula where N = sample size
30 = sqrt of ∑(x-average)^2 / N
Then squaring off on both sides,
900 = 7200/N
⇒N = 8
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When a ball thrown straight upwards reaches the very top of its path, its acceleration is:_______
When a ball thrown straight upwards reaches the very top of its path, its acceleration is: equal to zero (0)
The fact that the acceleration at the highest point of the ball's trajectory is equal to zero is related to the fact that a transition point is reached in which the acceleration that is equal to gravity goes from being negative when the ball is going up to becoming positive at the instant in which it begins to descend due to the effect of the force of gravity.
What is vertical launch upwards?In physics vertical launch upwards is the motion described by an object that has been launched vertically upwards in which the height and the effect of the earth's gravitational force on the launched object are taken into account.
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What physical developments typically accompany adolescence?
Select all that apply.
O development of reflexes and motor skills
increased levels of hormones in the blood
O growth of the brain's frontal cortex
O increased risk of heart disease
Answer:increases levels of hormones in the brain
Explanation: because when you go through puberty you start to get more hormones
A car accelerates at 2.0 m/s2 for 10 seconds. The car has an initial velocity of 10 m/s. What is the final velocity of the vehicle?
Answer: The final velocity will be 30 m/s
Explanation:
[tex]v_{i} = 10 m/s\\a = 2.0m/s^{2} \\t = 10s\\v_{f} = ?\\\\a = \frac{v_{f} - v_{i}}{t} \\2.0 = \frac{v_{f} - 10}{10} \\20 = v_{f} - 10\\v_{f} = 30[/tex]
Answer:
30 m/s
Explanation:
[tex]\boxed{\begin{array}{c} \text{\underline{The Constant Acceleration Equations (SUVAT)}}\\\\\begin{aligned}v&=u+at\\\\s&=ut+\dfrac{1}{2}at^2\\\\ s&=\left(\dfrac{u+v}{2}\right)t\\\\v^2&=u^2+2as\\\\s&=vt-\dfrac{1}{2}at^2\end{aligned}\end{array}}[/tex]
[tex]\boxed{\begin{minipage}{9 cm}s = displacement in m (meters)\\u = initial velocity in m/s (meters per second)\\v = final velocity in m/s (meters per second)\\a = acceleration in m/s$^{2}$ (meters per second per second)\\t = time in s (seconds)\\\\When using SUVAT, assume the object is modeled\\ as a particle and that acceleration is constant.\end{minipage}}[/tex]
Given:
u = 10 m/sv = a = 2.0 m/s²t = 10 sSubstitute the given values into v = u + at and solve for v:
[tex]\begin{aligned}v & = u+at\\\implies v & = 10 + 2(10)\\& = 10 + 20\\& = 30\; \sf m/s\end{aligned}[/tex]
Therefore, the final velocity of the vehicle is 30 m/s.
If we compare our place in the universe with a very distant place, we can say that:_____.
When we compare our place in the universe with a very distant place, we can say that all the laws of physics are the same in each place.
Physics laws are the result of scientific observations made after very long years. The nature of physics laws is absolute and remains intact even in the presence of external factors. They are conservative in terms of quantity, can be applied anywhere in the universe, are present everywhere, and remain stable. Some of these laws are as follows:
1. Law of universal gravitation
This law states that every object in the universe attracts each other in direct proportion to their combined mass and is inversely proportional to the distance between them.
2. Conservation of mass and energy
According to this law, mass, and energy can neither be created nor be destroyed. They can only be transferred from one form to another.
3. Law of inertia
This is Newton's first law of motion. It states that a body can resist the change in its motion unless the application of an external force. The property of resisting the change in motion is called inertia.
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dangers of fibre optics
Can you please answer the question. Thank you!
From the Newton's first law, we can see that the impressed force is equation the rate at which the momentum changes.
F = m(v - u)/t
F = force applied
m = mass of the body
v = final velocity
u = initial velocity
t = time
1) Deceleration of the person wearing the seatbelt is; 0 - 20/ 0.1 = -200 m/s^2
2) Force exerted = 50 Kg * ( -200 m/s^2) = -10000 N
3) Deceleration of the person stopped by the dashboard = 0 - 20/ 0.01 = -2000 m/s^2
4) Force exerted by the dash board on the person = 50 Kg * (-2000 m/s^2) = -100000 N
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What device is used to create static electricity
Answer: An electrostatic generator, or electrostatic machine, is an electrical generator that produces static electricity, or electricity at high voltage and low continuous current.
Explanation:
Answer:
electrostatic generator
Explanation:
Manual electrostatic generators develop electrostatic charges of opposite signs rendered to two conductors, using only electric forces, and work by using moving plates, drums, or belts to carry electric charge to a high potential electrode.
An athlete runs a marathon 42 195 km in 2h 5mins 42s. Convert in to m/s
The Speed of the athlete is 5.59 m/s
What is the speed of the athlete in m/s?Speed is defined as the ratio of the distance covered and the time taken
Speed = distance/timeThe units of speed can either be m/s, km/hr, mil/hr, etc.
The distance covered by the athlete = 42.195 km
Distance in meter = 42195 * 1000 = 42195 m
Time taken = 2 * 3600 s + 5 * 60 s + 42 s
Time taken = 7542 s
Speed = 42195 m/7542 s
Speed = 5.59 m/s
In conclusion speed is ratio of distance and time taken.
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What do we mean when we say we assume divisibility in a linear programming solution?
The final solution sales will always be fractions. The final solution deals do not need to be integers.
Linear programming (LP) or Natural Optimization is the issue of maximizing or underestimating a straightforward work subject to linear restrictions.
What is Linear Programming?The problem of maximizing or minimizing a straight work subject to linear constraints is known as linear programming (LP) or direct optimization.Equities or imbalances could be the constraints. Among the advancement issues are profit and loss calculations.Linear programming problems are a type of optimization problem in which the feasible region is determined and the arrangement is optimized to have the highest or lowest esteem of the work.The various types of linear programming are as follows: To solve linear programming problems, the Simplex method is used.R is a programming language used to solve linear programming problems. To solve linear programming, a graphical method is used.To learn more about linear programming, visit;
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An object launched at ground level with an initial speed of 50.0 m/s at an angle of 30.0degrees above the horizontal. It strikes a target above the ground 3.0 seconds later.What is the vertical distance of the object from where it was launched to where it lands?
The vertical distance of the object from where it was launched to where it lands is 30.9 meters.
What is projectile?A Projectile is an object that is propelled by the application of an external force and then moves freely under the influence of gravity and air resistance.
Acceleration=0m/s^2 , t=3 seconds , Vox= 50 cos30 Acceleration=9.8 m/s^2 , t=3 seconds , Voy=50sin3050cos30=x x 50 /50 , 50sin30= y x 50/50 ( x is the base , y is the perpendicular )Del x = ? , Del y = ?Del y = Voy + 1/2 at^2 = 50sin30 x 3 + 1/2 x -9.8x 3^2 = 30.9 mTo know more about Projectile visit:
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What currency forecasting technique links exchange rates to macroeconomic variables such as money supply and inflation?
Fundamental analysis forecasting technique links exchange rates to
macroeconomic variables.
What is Fundamental analysis?In accounting and finance, fundamental analysis refers to the examination of a company's financial statements, state of affairs, rivals, and markets.Additionally, it takes into account the economy's overall health as well as variables like interest rates, output, earnings, employment, GDP, housing, manufacturing, and management.
A technique for figuring out a stock's true or "fair market" value is fundamental analysis.Fundamental analysts look for stocks that are currently trading for more or less than what they are really worth.A buy recommendation is made for the stock if the fair market value is higher than the current market price, which indicates that it is undervalued.If the fair market value is less than the market price, the stock is regarded as overvalued, and if the stock is held, it may be advised neither to buy nor to sell.Technical analysts, on the other hand, favor analyzing the stock's historical price trends to forecast short-term future trends.
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Which of the following best describes what the Nervous System does?
a. It sends glucose throughout the body.
b. It sends signals and messages throughout the body.
c. It sends oxygen throughout the body.
d. It sends liquid urine throughout the body.
Answer: It sends signals and messages throughout the body.
Answer:
b.
Explanation:
if you read B. its explains it sends signals and messages throughout your body so thats uour nervous system.
your welcome
A glass stopper has a volume of 16 cm3 and a mass of 40g. calculate the density of glass in g/cm3 and in kg/m3.
A glass stopper has a volume = 16 cm^3
mass = 40 g
Therefore, density (g/cm^3) = MASS/ VOLUME
DENSITY = 40/16 g/cm^3
Density = 2.5 g/cm^3
In kg/m^3 => 2.5*10^-3 kg / 10^-6m^3 = 2500 kg/m^3
The definition of Density is the amount of matter in a given space, or volumeTo finding density D=m/v or Density = mass/volumeCommon units for density g/cm^3 or g/mL or kg/m^3 or kg/LDensity of water = 1 g/mLdensity is a physical propertyhelium is less dense than air while carbon dioxide is more dense than airSalt water is denser so we don't sink as easily.To know more about DENSITY visit : https://brainly.com/question/15164682
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A large crate of emergency supplies is dropped from a hovering helicopter. the crate has fallen for 2.90 s calculate the displacement of the crate during this time.
By using uniform motion, the displacement of a fallen crate after 2.9 seconds is 41.209 meters.
We need to know about uniform motion to solve this problem. The uniform motion is an object's motion under acceleration. It should follow the rule
vt = vo + a . t
vt² = vo² + 2a . s
s = vo . t + 1/2 . a . t²
where vt is final velocity, vo is initial velocity, a is acceleration, t is time and s is displacement.
From the question above, we know that
t = 2.90 s
vo = 0 m/s
a = g = 9.8 m/s²
By substituting the given parameters, we can calculate the displacement with the third equation
s = vo . t + 1/2 . a . t²
s = 0 . 2.9 + 1/2 . 9.8 . 2.9²
s = 0 + 41.209
s = 41.209 m
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nalyze the scatterplot graph.
Which trend does the graph show?
As age increases, weight increases.
As weight decreases, age increases.
As age increases, weight remains the same.
As weight increases, age remains the same.
As we see in the scatterplot graph and the briefing given below the most appropriate option is A-As age increases, weight increases.
Briefing:If you follow the arrow's trajectory, your finger will move to the right, increasing age (on the horizontal axis).
Additionally, as your finger rises, the weight (on the vertical axis) does as well.
Age and weight increase in tandem since both processes are ongoing.
What do scatterplot graphs display?The association between two numerical variables measured for the same individuals is displayed in a scatterplot. One variable's values are displayed on the horizontal axis, and the other variable's values are displayed on the vertical axis. On the graph, each individual in the data is represented by a point.
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The complete question is-
Analyze the scatterplot graph.
Which trend does the graph show?
A-As age increases, weight increases.
B-As weight decreases, age increases.
C-As age increases, weight remains the same.
D-As weight increases, age remains the same.
On mercury, the acceleration due to gravity is 3.59 m/s2. how far would a 21 g rock fall from rest in 7.5 s if the only force acting on it was the gravitational force due to mercury?
The distance traveled by a rock on mercury due to gravity is 100.96.
given that,
acceleration due to gravity, g = 3.59 m/s²
mass of the rock = 21 g
time = 7.5 s
distance traveled =?
using the equation of motion,
s= ut + 1/2 at^2
since u = 0
s = 1/2 x 3.59 x 7.5 x 7.5 = 100.96
Mercury is roughly 0.383 times the size of Earth and just 0.055 as massive, with a mean radius of about 2,440 km and a mass of 3.30 1023 kg. As a result, Mercury is the Solar System's smallest and least massive planet. Mercury has a surface gravity of 3.7 m/s2, which is equal to 0.38 g, although this is due to its high density, which is a solid 5.427 g/cm3, which is higher than Earth's 5.514 g/cm3.
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Anyone know the answer
What is the radius of the sphere gizmos
The radius of a sphere is the distance between the centre point of the sphere to the surface of the sphere.
r = d / 2
A = 4 π r²
r = √ ( A / 4 π )
V = 4 / 3 π r³
r = ∛ ( 3 V / 4 π )
r = Radius of the sphere
d = Diameter of the sphere
A = Surface Area of the sphere
V = Volume of the sphere
A sphere is the 3-dimensional form of a circle. Since the radius of the sphere is a measure of length, its unit is usually meter.
Therefore, the radius of a sphere is the distance between the centre point of the sphere to the surface of the sphere.
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The sound intensity at a distance of 20 m from a noisy generator is measured to be 0.26 w/m2. what is the sound intensity at a distance of 27 m from the generator?
0.1111 W/m² is the sound intensity at a distance of 27 m from the generator.
The amount of energy travelling through a unit area in a unit of time perpendicular to the direction of the sound waves is known as the sound intensity. Sound intensity is inversely related to the square of the sound's distance when all other factors are held constant. This is,
I ∝ (1/r²)
I = k/r²
Since k can be the constant of proportionality. k = Ir²
We can write this relation as
I₁ × r₁² = I₂ × r₂²
I₁ = 0.25 W/m²
r₁ = 16 m
I₂ = ?
r₂ = 24 m
0.25 × 16² = I₂ × 24²
I₂ = (0.25 × 16²)/24²
I₂ = 0.1111 W/m²
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The density of lead is 11.3 g/cm3. what mass of lead is required to make a 1.00 cm3 fishing sinker?
The mass of lead required to make a 1.00 cm3 fishing sinker is 11.3g.
What is mass?
Mass is a metric used in physics to express inertia, a fundamental characteristic of all matter. A mass of matter's resistance to altering its direction or speed in response to the application of a force is what it essentially is. The change that an applied force produces is smaller the more mass a body has.
Given :
Density of lead = 11.3 g/cm3
Volume of sinker = 1.00 cm3
One of a substance's attributes is density, which is calculated by dividing the mass by the volume. Mathematically:
Density : Mass / volume
therefore after putting the values,
mass= 11.3g
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The dose of a drug is 500 mcg/kg of body weight. how many milligrams should be given to a child weighing 55 lb?
12.5 mg should be given to a child weighing 55 lb.
How is the dose of a drug determined when the body weight of a person is given?Some medications especially for children can be prescribed according to the particular person's body weight in (kg) or their body surface area in (m²).
You have to multiply the dose with the weight to determine the required dose and then substitute in other formula.
1 kg = 2 lb
1 lb = 1 / 2 kg
55 lb = 0.5 × 55
27.5 kg
Dose = 500 mcg/kg
Therefore Dose = 12.5 mg for a child weighing 55 lb.
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Someone one can answer with a dimensional analysis?
Using Dimensional analysis to calculate,
Dwight can grow 9600 beets on the 8 acres of land.
Michael can afford to buy enough pizzas.
Dimensional Analysis is a problem-solving technique that makes use of the fact that every number or statement may be multiplied by one without affecting its value. It is also known as the Unit Factor Method or the Factor-Label Method.
Using dimensional analysis to solve the given two problems,
a) 1/8 hectare = 150 beets
1 acre = 150 x 8 = 1200 beets
8 acres = 1200 x 8 = 9600 beets
Dwight can grow 9600 beets on the 8 acres of land.
b) 15 co-workers x 3 slices = 45 slices of pizza
No. of pizzas needed = 45/12 = 3.75 = 4 pizzas
Cost of pizzas = 19.50 x 4 = $78
Since Michael has $90, he can afford enough pizzas.
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A weight gain of 1.49 lb (0.68 kg) per month is expected from birth until which month?
A weight gain of 1.49 lb (0.68 kg) per month is expected from birth until 6 months
A newborn grows roughly one inch every month throughout the first six months. Between six months and a year, growth slows to around a half inch every month. A baby boy's average length at six months is around 26.5 inches (67.6 cm), whereas a baby girl's average length is approximately 25.75 inches (65.7 cm). Boys average 29.75 inches (75.7 cm) while girls average 29 inches at one year (74 cm). During the first six months, he grew quickly, gaining 1.49 pounds each month and one inch in length. The following are characteristics of the first 6 months.
a.) Upper limbs and head grow more quickly b.) Primitive reflexes are present, including a strong suck and gag reflex c.) Infant is an obligate nose breather d.) Posterior fontanel closes by 2-3 months
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The isolated point charge of q = 15 nc is in a vacuum. determine (a) the magnitude of the electric field at point p that is 0.20 m to the right of the positive charge.
The magnitude of the electric field at point P which is 0.20 m to the right of the positive charge is 3,3375 N/C.
The electric field(E) due to an isolated point charge is
E= KQ/r^2
Here K is the Electrostatic Constant = 1/4π∈ = 9 x 10^9 N m^2/C^2
Q is the magnitude of the charge
r is the distance of the point from the charge
Putting q= 15 nC and r = 0.20 m in the given equation
E = 9 x 10^9 x 15 x 10^-9/(0.20)^2
E = 3375 N/C
Hence, the magnitude of the electric field at point p which is 0.20 m to the right of the positive charge is 3,3375 N/C.
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Is the average speed of the blood 0.90 m/s , greater than 0.90 m/s , or less than 0.90 m/s ?
The average speed of blood is less than 0.90 m/s.
What is the speed of blood?The blood flows in the body of a person at the speed of less than 0.90 m/s. In miles per hour, the value is 2 which means the blood flows at the rate of 2 miles per hour. We know that blood is very important for the survival of all humans. This blood is a source of transportation of oxygen and waste material in the body like carbondioxide gas. This speed of of less than 0.90 m/s is optimum for the exchange of gases between blood and cell.
So we can conclude that the average speed of blood is less than 0.90 m/s.
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A researcher reports an f-ratio with df = 3, 36 for an independent-measures experiment. how many treatment conditions were compared in this experiment?
a) 36
b) 4
c) 39
d) 3
The correct option is B.
There were 4 treatment conditions compared in the experiment.
F ratio plays an essential role in performing a particular dataset of ANOVA. F ratio is particularly a ratio which is obtained by the between-group variance or it is also called MSB and also within-group variance known as MSW. Any F-ratio which is computed is compared with the critical F-ratios from the table as it will check out if there are any variations available between the groups or not.
The researcher reports an F-ratio where the degrees of freedom = 3, 36.
F-ratio is obtained by the calculation of dividing the Mean squared errors because of the treatment by the Mean squared error which occurs due to error.
For the particular case, the researcher reports an F-ratio having degrees of freedom = 3, 36. It is indicating that the treatments are being distributed with degrees of freedom which is 3 and specified errors are distributed with degrees of freedom which is 36.
Let the treatments which were involved in the study can be denoted by k.
Let the total number of individuals involved in the study can be taken as N.
Then, the treatments will be having degrees of freedom as,
[tex]df_{treatments}[/tex] = k-1
3=k-1
k=3+1=4
Therefore, the required treatment condition number that was compared is 4.
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For each scenario below, identify the opposite reaction force. 1) A baseball bat hits a ball. 2) A bowling ball pushes up against the pins. 3) Air particles push outward against a balloon. 4) During an earthquake, tectonic plates move
The reaction forces are as follows:
the ball hitting the batthe pins pushing against the bowling ball the walls of the balloon pushing against the air particlesthe weight of the tectonic plates.What are reaction forces?Reaction forces are the force which act in an opposite direction to an applied force.
According to Newton's third law of motion, action and reaction are equal but oppositely-directed.
Considering the given forces, the reaction forces are as follows:
A baseball bat hits a ball = the reaction force is that of the ball hitting the bat
A bowling ball pushes up against the pins = the pins pushing against the bowling ball
Air particles push outward against a balloon = the walls of the balloon pushing against the air particles
During an earthquake, tectonic plates move = the weight of the tectonic plates.
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How many photons at 660 nm must be absorbed to melt 5.0 x 10^2 g of ice?
The total photons at 660nm that are needed to be absorbed are 5.533 x 10²¹ in order to melt the ice.
What is the Planck's equation?Planck's equation is used to determine that the energy (E) of a photon is equal to hv = hc/λ, where this v is stated as the frequency of the electromagnetic radiation and λ as its wavelength.
Wavelength = 660nm = 6.60 x 10^-7 m
First, we find out the energy that is required to melt 5.0 x 10^2 grams of ice. This is given by:
Energy = mass multiplied by latent heat of fusion
Energy = 5.0 x 10^2g x 334 J/g
Energy = 167 x 10^3 J
So, we now have that to melt 5.0 x 10^2 g of ice, we need 334J of energy
Next, we can use Planck's equation which is:
Energy = (number of photons multiplied by Planck's constant x speed of light) / wavelength
167 x 10^3 J = [n * 6.64 x 10⁻³⁴ * 3 x 10⁸ ]/ 6.60 x 10^-7
n = 5.533 x 10²¹
5.533 x 10²¹ photons need to be absorbed by the ice in order to melt.
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A 11.3 v battery is connected to a 6.2 pf parallel-plate capacitor. what is the magnitude of the charge on each plate?
According to the capacitance, the charge on each plate is 70.06 pC.
We need to know about the capacitance of the air-filled capacitor to solve this problem. The capacitance of the air-filled capacitor depends on the charge and voltage. It can be written as
C = Q/V
where C is capacitance, Q is charge and V is voltage.
From the question above, we know that
C = 6.2 pF = 6.2 x 10¯¹² F
V = 11.3 V
By substituting the given parameters, we can calculate the charge on each plate
C = Q/V
6.2 x 10¯¹² = Q / 11.3
Q = 6.2 x 10¯¹² x 11.3
Q = 70.06 x 10¯¹² C
Q = 70.06 pC
Hence, the charge on each plate is 70.06 pC.
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