Measuring human proportions on skeletal remains from ancient sites as well as among modern human populations is known as:_________

The correct option is (b) 5n

A result, the object is being acted upon by a net downward force of 5N.

The force that is produced by summing the vector sums of all the forces acting on an object is known as the resultant force. The effect of the resulting force is the same as the sum of all the acting forces operating on the object. The direction of the forces must be considered when calculating the resulting force.

The northward force is Fn = 10N, given.

Fs = 15N is the southern force.

The net force on the phone is Fnet =?N, which is necessary.

Downward pressure is applied by the object's weight, and upward pressure is applied by upward resistance. The vector sum of these two forces will represent the net force.

Fnet = Fs - Fn (Considering the direction downward as positive)

Fnet = 15N - 10N

Fnet = 5N

There is a net downward force of 5 N acting on the object as a result.

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Whenever you wish to bring an object into focus under high power, the correct order of steps are as listed below:

A microscope can be defined as an optical device that is typically designed and developed to produce a magnified (an enlarged) image of a minute (very tiny) object, so as to show all the littlest and tiniest details about the object which cannot be seen by the natural human eye.

In Science, there are different types of microscope used for magnifying an object and these include the following:

In conclusion, you should use the coarse focus adjustment to focus the specimen on low power and then, ensure that fine focus is readjusted under high power in order to produce the sharpest image of this specimen.

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Complete Question:

Indicate the correct order of steps as you bring an object into focus under high power. Rank the options below.

Place slide on stage and secure with stage clips.

Focus specimen on low power using coarse focus adjustment.

Use fine focus to sharpen the image under low power.

Readjust fine focus under high power to produce the sharpest image.

Rotate high power lens into position.

Turn on the light and center the specimen over the light source.

In the system, kinetic energy from the moving water of the faucet turns the turbine. The Mechanical energy of the spinning turbine generates Electrical energy which is transformed into Thermal energy that causes the temperature of the water to increase. The water then becomes steam and gives off more Thermal energy into the atmosphere.

The mechanical energy spend on the turbine to spin would generate electrical energy. This electrical energy then converts the moving electric charge into thermal or heat energy. The heat would convert water to steam.

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Astronomers typically use filters that exclusively transmit light from a specific narrow band of wavelengths to measure a star's apparent brightness in order to determine the precise color of a star (colors).

Around 0.001 magnitude of starlight may be measured with accuracy by photoelectric photometers. The method of surface photometry, which gauges apparent magnitude in magnitudes per square arcsecond, can also be applied to extended objects like planets, comets, nebulae, and galaxies. The varied hues are caused by the light's estimated blackbody radiation, which is more sensitive to the star's temperature than to the specifics of its composition. As a result, astronomers can gauge a star's surface temperature by observing its hue.

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Answer:

-2.33 m/s^2

Explanation:

initial speed u = 7m/s

final speed v= 3s

acceleration a = (v-u)/t

a= -7/3= -2.33 meter per second square.

Yes, if my friend moved from Chicago to Buenos Aires, Argentina and said that she has observed constellations that cannot be seen in Chicago, because, two stars in same constellation may be actually very far away from each other.

Constellations are the groups of stars. The constellations you can see at night depend on your location on the Earth and the time of year. Constellations were named after objects, animals, & people long ago. Astronomers today still use the constellations to name stars and meteor showers. A constellation is group of stars that looks like a particular shape in the sky and has been given a name. These stars are far away from the Earth and they are not connected to each other at all. Some stars in a constellation might be close while others are very much far away. But, if you were to draw lines in the sky between the stars like a dot-to-dot puzzle – and use lots of imagination – picture would look like an object, animal, or person.

constellation, in astronomy, any of certain groupings of stars that were imagined—at least by those who named them—to form conspicuous configurations of the objects or creatures in the sky. Constellations are useful in assisting the astronomers and navigators to locate certain stars.

Certain constellations can only be seen in Northern Hemisphere but disappear in Southern Hemisphere, the vice-versa is true as well. The Earth is a globe because constellations appear to shift and disappear due to spherical curvature of the Earth.

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The scientists will search and do more research about it

The enterprise must slow down to [tex]-2.5 km/s^{2}[/tex] to avoid a collision.

Average velocity is defined as the difference between the change in position or displacement (x) and the time intervals (t) during which the displacement occurs. The average velocity may be positive or negative depending on the displacement's direction. The unit of measure for average velocity in the SI is meters per second (m/s or m[tex]s^{-1}[/tex]).

Only when acceleration is constant and motion is on a straight line can the equations of kinematics be used.

Let us assume that,

A = Starship enterprise

B = Klingon ship

Considering that the starship enterprise slows down steadily, the following would be the average velocity:

[tex]v_{a}__{i}[/tex] =( [tex]v_{a}__{i}[/tex] + [tex]v_{a}__{f}[/tex] )/2

where [tex]v_{a}__{f}[/tex] = 0 since it must come to a stop

[tex]v_{a}[/tex] = (50 + 0)/2

[tex]v_{a}[/tex] = 25 km/s

As a result, A must travel 100 km in addition to the distance B travels during that period before coming to a stop:

[tex]d_{A}[/tex] = [tex]d_{B}[/tex] + 100

25t = 20t + 100

5t = 100

So,

[tex]d_{A}[/tex] = 25t

[tex]d_{A}[/tex] = 25(20)

[tex]d_{A}[/tex] = 500 km

and

[tex]d_{A}[/tex] = [tex]v_{a}__{i}[/tex] × t + [tex]\frac{1}{2} a t^2[/tex]

500 = 50(20) + [tex]\frac{1}{2} a(20)^2[/tex]

a = [tex]-2.5 km/s^2[/tex]

Therefore, the enterprise must slow down to [tex]-2.5 km/s^{2}[/tex] to avoid a collision.

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The complete question is: "The starship enterprise returns from warp drive to ordinary space with a forward speed of 50 km/s. to the crew’s great surprise, a Klingon ship is 100 km directly ahead, traveling in the same direction at a mere 20 km/s. without evasive action, the enterprise will overtake and collide with the Klingons in just slightly over 3.0 s. the enterprise’s computers react instantly to brake the ship. what magnitude acceleration does the enterprise need to just barely avoid a collision with the Klingon ship? assume the acceleration is constant."

Answer:

R = V^2 sin 2 θ / g        range formula

R is a maximum for θ = 45 and R = V^2  g

g = V^2 / R = 3^2 / 15 = .6 m/s^2

Autotransformers are especially practical if the difference between the primary and secondary voltages is realtively small.

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Using this formula m=W/g, the mass of an object if its weight on earth is 1150N is 117.347 kg

Let mass of an object be m, weight be W and acceleration due to gravity is g.

From the formula m=W/g

mass m =?

weight w = 1150N

g=9.8 m/[tex]s^{2}[/tex]

So,  the mass of an object if its weight on earth is 1150N will be calculated as:

m=1150/9.8

m=117.347 kg

Hence using the formula m=W/g, the mass of an object if its weight on earth is 1150N will be 117.347 kg.

This is in acceptance with Newton's laws of motion as well and thus calculated according to given formula.

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A jetliner goes from rest to a takeoff speed of 183 mi/h in 36.1 s.

the magnitude of its average acceleration is 81.80

Take off speed of the jetliner = 183 mi/h

so time taken = 36.1s

average acceleration = change in velocity / time taken

= (183 x 1609.3)/ 3600

= 81.80 m/[tex]s^{2}[/tex]

The rate at which an object’s velocity changes is measured as its acceleration. Since it is a vector, speed and direction are also included. In the SI, acceleration is measured in meters per second squared (m s 2).

An object’s velocity is how quickly it is travelling in a specific direction. A vector, that is. In the SI, velocity is measured in meters per second (m s).

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Five particles are shot from the left into a region that contains a uniform electric field.  A negatively charged particle with a charge –3q follows path 2 while it moves through this field. The electric field point towards the bottom of the page.

An electric field is a physical field around a charged particle or object which has the ability to surround electrically charged particles and exerts force on all other charged particles that are present in the field.

This force exerted upon them is either attracting or repelling them. This electric field also refers to as the physical field for a system of charged particles.

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When a hydrogen atom forms a covalent link with an N, O, or F atom, hydrogen bonding takes place.

Only a few substances that contain hydrogen can form a hydrogen bond.

The hydrogen bonds in the CH4 molecule are visible.

When a F atom and a hydrogen atom are covalently bound, the hydrogen atom gains a slight positive charge.

Covalent bonds and hydrogen bonds are interchangeable terms.

The interaction known as hydrogen bonding, which involves a hydrogen atom sandwiched between two other atoms with a high affinity for electrons, is stronger than van der Waals forces but weaker than ionic or covalent bonds. Atoms in separate molecules or distinct regions of the same molecule can form hydrogen bonds with one another. A hydrogen atom (FH, NH, or OH) is covalently bound to one of the pair's (the donor) typically fluorine, nitrogen, or oxygen atoms, with which it shares electrons unevenly. As a result of this high electron affinity, the hydrogen gains a little positive charge. The other atom in the pair, which is usually F, N, or O, has an unshared electron pair, giving it a little negative charge.

The donor atom efficiently transfers its hydrogen to the receiver atom by electrostatic attraction, creating a connection. Water (H2O) is liquid over a much wider temperature range than would be anticipated for a molecule of its size due to its extensive hydrogen bonding. Because it quickly forms hydrogen bonds with the solute, water is an excellent solvent for ionic compounds as well as many other types of solutes. A linear protein molecule's ability to fold into its functional configuration depends on the hydrogen bonds formed between the amino acids. The double-helix structure of DNA is essential for the transmission of genetic information. It is created by hydrogen bonds between nitrogenous bases in nucleotides on the two strands of DNA (guanine partners with cytosine, adenine couples with thymine).

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The infant alligator's sex is the dependent variable in this experiment, and temperature is the independent variable.

The independent and dependent variables are the two main factors in an experiment. In a scientific experiment, an independent variable is a variable that is altered or controlled to see how it affects the dependent variable. In a scientific experiment, the variable under test and being measured is known as the dependent variable. Example: Your test score is influenced by how much you sleep (an independent variable) (dependent variable). One of the most crucial aspects of scientific study is establishing cause and effect relationships. Knowing which variable is the cause, or independent variable, and which is the effect, or dependent variable, is crucial.

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An ethical dilemma​ describes a conflict between two morally correct courses of action.

Being able to reason effectively and logically about what to believe or do is known as critical thinking. It comprises the capacity for independent and thoughtful thought. These are some examples of what someone with critical thinking abilities can do:

The ability to think clearly and rationally is crucial whatever we choose to undertake. It should go without saying that critical thinking is crucial if you work in the fields of education, research, business, law, or management.

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The height need to change by 4 to double the final velocity.

The final velocity of an object during a free fall is related to maximum height of fall as given the equation below.

v = √2gh

v² = 2gh

v²/h = 2g

v₁²/h₁ = v₂²/h₂

when v₂ = 2v₁, change in height is calculated as;

h₂ = h₁v₂²/v₁²

h₂ = (h₁ (2v₁)²) / (v₁)²

h₂ = 4h₁v₁² / v₁²

h₂ = 4h₁

Thus, the height need to change by 4 to double the final velocity.

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In the mass spectrum of pentane, the presence of a peak with m/z = 15 is most likely to the detection of a methyl radical cation.

The m/z ratios of the ions contained in a sample displayed against their intensities form a mass spectrum. The height of the peaks in a mass spectrum denotes the relative abundance of the various components in the sample, and each peak in a mass spectrum displays a component of distinct m/z in the sample.

Only when a molecule has been transformed into a gas-phase ion can a mass spectrometer calculate the mass of the molecule. In order to do this, it gives molecules an electrical charge and transforms the flow of electrically charged ions that results into a proportional electrical current that a data system can subsequently read.

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The car with an initial speed of 66 km/s will come to a complete stop at 22 s

The formula for Uniformly varied rectilinear motion (UVRM) and procedure we will use to solve this exercise is:

t = (vf - vi) /a

Where:

Information about the problem:

Applying the time formula, we have:

t = (vf - vi) /a

t = (0 m/s - 66 km/s) / - 3 km/s2

t = (- 66 km/s) / - 3 km/s2

t =  22 s

It is a physical quantity that indicates the variation of velocity as a function of time, it is expressed in units of distance per time squared e.g.: m/sec2 ; km/h2

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A sled sliding down the hill will have more Kinetic energy than a sled resting at the top of a hill.

We know that,

Kinetic Energy KE = [tex]1/2 mv^{2}[/tex]

A sled resting at the top of a hill will have zero velocity.

KE of a sled resting at the top of a hill = 0

Kinetic Energy is the energy of motion which is directly proportional to the velocity of the object.

Therefore Kinetic energy of a sled sliding down the hill is more than that of a sled resting at the top of a hill.

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Jennifer runs 5 miles east, then stops to take a break. after her break, she continues running 4 more miles east.

In this the total distance she covers is 9 miles and the total displacement is also the same as the distance that is 9 miles.

Displacement is the shortest distance between initial and final position, or we can say it is the straight-line distance between initial and final position.

Whereas distance is considered as the total path length covered from initial position till the final position. The Displacement of a body is always less than or equal to the distance.

Displacement can be zero in case the initial and final positions coincide, but distance can never be zero.

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For a fixed (constant) rate of heat transfer in one-direction a material with a very large thermal conductivity will have small relative size temperature gradient.

What is thermal conductivity?

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The range of each Amazon box is determined as 1.59 m.

The time of motion of the amazon box is calculated as follows;

h = vt + ¹/₂gt²

where;

h = ¹/₂gt²

t = √(2h/g)

t = √(2 x 1.4/9.8)

t = 0.53 second

The horizontal distance traveled by the amazon box is known as the range and it is calculated as follows;

R = Vₓt

where;

R = 3 m/s x 0.53 s

R = 1.59 m

Thus, the range of each Amazon box is determined as 1.59 m.

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0.176 cubic decimeters (dm3) of blood it can hold (v of a cylinder = r2h).

Round and hollow Cylinders i.e., when the general change in cross-sectional region is significantly less than the overall change in tension along the cylinder. At the end of the day, the cylinder region variety should be slower than the spatial variety of the actual wave. Round and hollow cylinders are generally utilized as transport compartments to safeguard interior items. The holders are expected to keep from imploding in any event, when they would tumble to the ground and be affected. In certain cases, the terms might be utilized conversely, but there is one vital contrast among cylinder and line, especially in how the material is requested and resilience. Tubing is utilized in underlying applications, so the external breadth turns into the significant aspect.

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There are 56.2 x 10^-6kg or in simple terms 0.0000562 kg in 56.2mg.

This can be explained as 1 kg = 10^6 mg

Or if you want to even simplify it much further, it can be deduced by

1 kg = 1000g and 1 g = 1000mg

This means 1 kg = (1000 x 1000) mg

Which means 1 kg = 1000000 mg or 10^6 mg.

So, to answer this question we have to reverse the process we have done here.

This means 1 kg = 10^6 mg

Which implies 1mg = 1/ 10^6 kg

Or it can be written as 1 mg = 10^-6 kg

So, 56.2 mg = 56.2 x 10^-6 kg and that is your answer.

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The magnitude of a velocity vector that had x- and y-components of 36 m/s and 48 m/s, respectively is 60 m/s. Thus, the correct option for this question is B.

The term magnitude may be characterized as the distance or quantity. The magnitude can be significantly utilized in order to describe the comparison of speeds. This term can remarkably be used to demonstrate the distance traveled by an object or to illustrate the amount of an object in terms of its magnitude.

The magnitude of the velocity vector may be defined as the total value which is the square root of the value. The magnitude of the vector can be, |a| = √ ( x² + y² ).

Now, substituting the values of x component and y component given, = √ ( 36² + 48² ) = √ ( 1296 + 2304) = √ 3600 = 60 m/s.

Therefore, the magnitude of a velocity vector is found to be 60 m/s. Hence, Option B is the correct answer.

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According to the first rule of motion, an object's motion will not alter unless there is a force acting on it.

According to the second law of motion, the amount of force exerted on an object is proportional to the product of the object's mass and its acceleration.

According to the third law, when two things interact with one other, the forces that they apply to each other are of equal magnitude but in opposing directions.

This is further explained below.

Generally, Isaac Newton, as he was formally known, was an English physicist and mathematician who was the leading light of the 17th century's Scientific Revolution. 

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Answer:

look it up

Explanation:

Answer: A radio wave is generated by a transmitter and then detected by a receiver. An antenna allows a radio transmitter to send energy into space and a receiver to pick up energy from space. Transmitters and receivers are typically designed to operate over a limited range of frequencies.

Explanation:

The acceleration of the proton is 3681 m/s^2

The term acceleration has to do with the change in the speed of the body with time. We can see here that the proton started from rest and was accelerated to 80.0% of the speed of light in 18 hours, 6 minutes, 45 seconds.

Initial velocity of the proton = 0 m/s (from rest)

Final velocity of the proton = (0.8 * 3 * 10^8 m/s) = 2.4 *  10^8 m/s

Time taken = 18 hours, 6 minutes, 45 seconds or 65205 s

Acceleration = 2.4 *  10^8 m/s -  0 m/s/65205 s

= 3681 m/s^2

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